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Greatest AI Brokers for Software program Growth Ranked: A Benchmark-Pushed Take a look at the Present Area

The AI coding agent market appears to be like virtually unrecognizable in comparison with 2024 and even early 2025. What began as inline autocomplete has developed into totally autonomous methods that learn GitHub points, navigate multi-file codebases, write fixes, execute assessments, and open pull requests — with out a human typing a single line of code. By early 2026, roughly 85% of builders reported repeatedly utilizing some type of AI help for coding. The class has fractured into distinct archetypes: terminal brokers, AI-native IDEs, cloud-hosted autonomous engineers, and open-source frameworks that allow you to swap in no matter mannequin you like.

The issue is that each device claims to be one of the best, and the benchmarks used to justify these claims aren’t all the time measuring the identical issues — and in some circumstances are not credible measures in any respect. This text options an important AI coding brokers by the metrics that truly matter for manufacturing software program growth, whereas being sincere about the place these metrics have damaged down. In case you are an AI/ML engineer, software program developer, or knowledge scientist attempting to determine the place to take a position your tooling funds in 2026, begin right here.

The right way to Learn These Benchmarks — Together with Why the Most-Cited One Is Now Disputed

Earlier than the itemizing, an necessary calibration on the numbers — as a result of one main benchmark shift occurred mid-cycle and isn’t but mirrored in most device comparability articles.

SWE-bench Verified has been the {industry}’s commonplace coding benchmark since mid-2024. It presents brokers with 500 actual GitHub points drawn from widespread Python repositories and measures whether or not the agent can perceive the issue, navigate the codebase, generate a repair, and confirm that it passes assessments — end-to-end, with out human steerage. It was a reputable proxy. In February 2026, that modified.

On February 23, 2026, OpenAI’s Frontier Evals workforce printed an in depth submit explaining why it had stopped reporting SWE-bench Verified scores. Their auditors reviewed 138 of the toughest issues throughout 64 impartial runs and located that 59.4% had essentially flawed or unsolvable check circumstances — assessments that demanded precise operate names not talked about in the issue assertion, or checked unrelated habits pulled from upstream pull requests. Extra critically, they discovered proof that each main frontier mannequin — GPT-5.2, Claude Opus 4.5, and Gemini 3 Flash — might reproduce the gold-patch options verbatim from reminiscence utilizing solely the duty ID, confirming systematic coaching knowledge contamination. OpenAI’s conclusion: “Enhancements on SWE-bench Verified not replicate significant enhancements in fashions’ real-world software program growth talents.” OpenAI now recommends SWE-bench Professional because the substitute for frontier coding analysis.

This doesn’t make SWE-bench Verified scores ineffective. Different main labs proceed to report them, third-party evaluators proceed to run them, they usually stay helpful for broad directional comparability. However any rating that presents SWE-bench Verified scores as clear, goal measurements of real-world capability — with out this caveat — is supplying you with an incomplete image. All scores on this article are flagged accordingly.

SWE-bench Professional is tougher to interpret than Verified as a result of printed outcomes differ considerably by break up, scaffold, harness, and reporting supply. The benchmark comprises 1,865 complete duties divided right into a 731-task public set, an 858-task held-out set, and a 276-task business/personal set drawn from 18 proprietary startup codebases. When the unique Scale AI paper measured frontier fashions utilizing a unified SWE-Agent scaffold, high scores have been beneath 25% — GPT-5 at 23.3% — reflecting a genuinely tougher analysis. Nonetheless, present public leaderboard and vendor-reported runs now present considerably larger scores beneath newer fashions and optimized agent harnesses: OpenAI experiences GPT-5.5 at 58.6% on SWE-bench Professional (Public), whereas Anthropic’s comparability desk lists Claude Opus 4.7 at 64.3% and Gemini 3.1 Professional at 54.2%. These numbers shouldn’t be immediately in contrast with the unique sub-25% SWE-Agent outcomes with out noting the scaffold and break up variations — the benchmark has not modified, however the analysis situations and mannequin generations have. While you see a 60%+ SWE-bench Professional rating alongside a sub-25% one, they’re measuring the identical benchmark beneath very totally different situations, not two separate assessments.

Terminal-Bench 2.0 evaluates terminal-native workflows: shell scripting, file system operations, atmosphere setup, and DevOps automation. As of April 23, 2026, GPT-5.5 leads at 82.7% on this benchmark — confirmed in OpenAI’s official launch. Claude Opus 4.7 scores 69.4% (Anthropic/AWS-reported), and Gemini 3.1 Professional scores 68.5%. An necessary methodological caveat: totally different harnesses produce totally different numbers for a similar mannequin. Anthropic’s Opus 4.6 system card confirmed GPT-5.2-Codex scoring 57.5% on the impartial Terminus-2 harness vs 64.7% on OpenAI’s personal Codex CLI harness — a 7-point hole from harness alone. When evaluating Terminal-Bench figures throughout sources, all the time verify which execution atmosphere was used.

One closing cross-benchmark caveat: agent scaffolding issues as a lot because the underlying mannequin. In a February 2026 analysis of 731 issues, three totally different agent frameworks working the identical Opus 4.5 mannequin scored 17 points aside — a 2.3-point hole that modifications relative rankings. A benchmark rating labeled with a mannequin identify displays the mannequin and the particular scaffold wrapped round it, not the mannequin in isolation.

10 AI Brokers for Software program Growth

A Observe on Claude Mythos Preview

The present chief on SWE-bench Verified amongst third-party trackers is Claude Mythos Preview at 93.9%, introduced April 7, 2026 beneath Anthropic’s Mission Glasswing. It’s not usually out there. Entry is restricted to a restricted set of platform companions; Anthropic has said it doesn’t plan broad launch within the close to time period, partially as a result of elevated cybersecurity functionality issues. It sits exterior the principle comparability beneath as a result of builders can’t entry it via commonplace channels. Its existence does, nevertheless, sign that the sensible functionality ceiling sits considerably above what any publicly out there device presently delivers.

#1. Claude Code (Anthropic)

SWE-bench Verified (self-reported): 87.6% (Opus 4.7) / 80.8% (Opus 4.6) SWE-bench Professional (Anthropic inside variant): 64.3% (Opus 4.7, #1) / 53.4% (Opus 4.6) Terminal-Bench 2.0: 69.4% (Opus 4.7, Anthropic-reported) CursorBench: 70% (Opus 4.7, Cursor-reported) Claude Code subscription: $20–$200/month | Opus 4.7 API: $5/$25 per million tokens

Claude Code is Anthropic’s terminal-native coding agent and the chief on code high quality metrics throughout most self-reported and third-party evaluations as of Might 2026. It runs from the command line, integrates with VS Code and JetBrains through extension, and is constructed round Claude Opus 4.7 — launched April 16, 2026.

Opus 4.7 represents a step-change over its predecessor. SWE-bench Verified jumped from 80.8% to 87.6% — an almost 7-point acquire. On Anthropic’s inside SWE-bench Professional variant, the mannequin moved from 53.4% to 64.3%, an 11-point acquire that places it forward of each present publicly out there competitor on that tougher benchmark. On CursorBench, Cursor’s CEO reported Opus 4.7 at 70%, up from 58% for Opus 4.6. Rakuten reported 3× extra manufacturing duties resolved on their inside SWE-bench variant; CodeRabbit reported over 10% recall enchancment on complicated PR evaluations with secure precision.

Opus 4.7 launched self-verification habits: the mannequin writes assessments, runs them, and fixes failures earlier than surfacing outcomes, quite than ready for exterior suggestions. It additionally launched multi-agent coordination — the power to orchestrate parallel AI workstreams quite than processing duties sequentially — which issues for groups working code assessment, documentation, and knowledge processing concurrently. The 1 million token context window can help a lot bigger repository contexts than shorter-window instruments, although very massive monorepos nonetheless profit from indexing, retrieval, or file choice methods to remain inside sensible limits.

One necessary pricing distinction: Claude Code subscription tiers ($20–$200/month) are what particular person builders pay to make use of Claude Code within the CLI and IDE integrations. The underlying Opus 4.7 API is priced at $5 per million enter tokens and $25 per million output tokens — unchanged from Opus 4.6 — with a batch API low cost of fifty% and immediate caching lowering prices additional. Groups constructing customized brokers on high of the Anthropic API aren’t paying the subscription price.

On Terminal-Bench 2.0, Opus 4.7 scores 69.4% — robust, however GPT-5.5 has since moved forward on this particular benchmark at 82.7%. For pure terminal/DevOps agentic workflows, that hole is price contemplating.

Greatest for: Builders engaged on complicated multi-file engineering duties, massive codebases, or long-horizon refactoring who prioritize output high quality over velocity.

#2. OpenAI Codex (OpenAI)

Terminal-Bench 2.0 (GPT-5.5): 82.7% — present #1 SWE-bench Professional Public (OpenAI-reported, GPT-5.5): 58.6% SWE-bench Verified (third-party trackers, GPT-5.5): ~88.7% (OpenAI doesn’t self-report) Pricing: Codex CLI is open-source (mannequin utilization requires a ChatGPT plan or API key); GPT-5.5 in Codex out there on Plus ($20/month), Professional ($200/month), Enterprise, Enterprise, Edu, and Go plans; API: $5/$30 per million tokens (gpt-5.5)

An necessary correction to many comparisons of Codex: the Codex CLI is an area device that runs in your machine, not a cloud-sandboxed system. The Codex CLI (out there on GitHub as openai/codex) runs an area agent loop in your terminal, utilizing OpenAI’s API for mannequin inference. The cloud execution floor — the place duties run in an remoted VM with out touching your native atmosphere — is the Codex net product and IDE integrations, not the CLI. This distinction issues for safety, community entry, and value modeling.

GPT-5.5 launched April 23, 2026 and is OpenAI’s most succesful coding mannequin to this point. On Terminal-Bench 2.0, it scores 82.7% — the present #1 place throughout all publicly out there fashions, forward of Claude Opus 4.7 (69.4%) and Gemini 3.1 Professional (68.5%). OpenAI describes Terminal-Bench because the extra consultant benchmark for the type of work Codex really does: “complicated command-line workflows requiring planning, iteration, and gear coordination.” On SWE-bench Professional (Public), GPT-5.5 scores 58.6% per OpenAI’s launch knowledge, behind Claude Opus 4.7 (64.3%) however forward of earlier GPT generations. Claude Opus 4.7 nonetheless leads on code high quality for multi-file, long-horizon software program engineering; GPT-5.5 leads on terminal-native, DevOps-style agentic execution.

Observe on SWE-bench Verified: OpenAI stopped self-reporting this metric in February 2026 as a result of contamination issues. Third-party trackers present GPT-5.5 round 88.7%, however OpenAI’s official place is that this benchmark is not a dependable frontier measure. They report SWE-bench Professional as a substitute.

GPT-5.5 is accessible in ChatGPT (Plus, Professional, Enterprise, Enterprise, Edu) and throughout Codex (CLI, IDE extensions, and the Codex net product). API entry was introduced and is rolling out. API pricing: $5/$30 per million tokens for gpt-5.5, a 2× bounce from GPT-5.4. Greater than 85% of OpenAI workers now use Codex weekly — a sign of inside confidence within the product past benchmark numbers.

Greatest for: Builders targeted on terminal-native, DevOps, and pipeline automation workflows the place Terminal-Bench efficiency is the first sign; additionally the strongest alternative for fire-and-forget execution through the Codex net product.

#3. Cursor

SWE-bench Verified: ~51.7% (default config; rises considerably with Opus 4.7 backend) Process completion velocity: ~30% quicker than GitHub Copilot in head-to-head testing ARR: $2 billion (February 2026) Pricing: $20/month (Professional), $60/month (Professional+), Enterprise tiers above

Cursor reached $2 billion ARR in February 2026 — doubling from $1 billion in November 2025 — and is reportedly in talks to lift roughly $2 billion at a $50 billion-plus valuation, with Thrive Capital and Andreessen Horowitz. These figures replicate actual developer adoption, not benchmark-driven hype.

Cursor’s SWE-bench determine (~51.7%) represents its default mannequin configuration. As a result of Cursor is model-agnostic and helps Claude Opus 4.7, GPT-5.5, Gemini 3.1 Professional, and Grok, its efficient benchmark ceiling scales with the mannequin chosen — a developer working Cursor with Opus 4.7 will get materially totally different efficiency from one utilizing a default configuration. The 30% job completion velocity benefit over Copilot displays Cursor’s editor-native structure, which eliminates context-switching overhead between a terminal agent and a separate IDE.

Cursor is a VS Code fork rebuilt round AI at each layer. Its Plan/Act mode provides builders a structured workflow: plan, assessment, then execute. Background Brokers (Professional+ tier, $60/month) run autonomous coding periods on cloud VMs in parallel, with out blocking the principle editor. Per-task mannequin choice — quick mannequin for autocomplete, reasoning-heavy mannequin for complicated edits — provides fine-grained price management.

Cursor is its personal editor, not a plugin. Builders utilizing JetBrains, Neovim, or Xcode can’t use Cursor with out switching editors. That constraint is actual and limits its enterprise footprint in comparison with Copilot.

Greatest for: VS Code-native builders who need one of the best AI-native IDE expertise and are prepared to pay for the built-in workflow.

#4. Gemini CLI (Google DeepMind)

SWE-bench Verified (Gemini 3.1 Professional): 80.6% Terminal-Bench 2.0 (Gemini 3.1 Professional): 68.5% Context Window: 1 million tokens Pricing: Free tier through Google AI Studio; Google One AI Premium for larger limits

Gemini CLI is Google DeepMind’s open-source coding agent (npm set up -g @google/gemini-cli). Its main mannequin is Gemini 3.1 Professional — launched February 19, 2026 — which scores 80.6% on SWE-bench Verified and 68.5% on Terminal-Bench 2.0. Gemini 3 Flash (roughly 78% SWE-bench Verified) is the lighter, cheaper choice throughout the similar CLI. These are distinct capabilities and the Gemini 3.1 Professional quantity is the right headline for what Gemini CLI can ship at full configuration.

Gemini 3.1 Professional additionally scores strongly on a number of non-coding benchmarks: ARC-AGI-2 (77.1%), GPQA Diamond (94.3%), and BrowseComp (85.9%), making it a robust choice for scientific computing, agentic analysis workflows, and duties that blend coding with deep reasoning. For Google Cloud-native groups, Gemini CLI integrates immediately with GCP, Vertex AI, and Android Studio.

The free tier is its most strategically distinctive function. Solo builders, college students, and open-source maintainers who can’t justify a $20–$200/month coding agent subscription have a reputable frontier-quality choice right here. At 80.6% SWE-bench Verified — matching Claude Opus 4.6 and forward of GitHub Copilot’s default configuration — this isn’t a compromise free tier. It’s a genuinely aggressive product that removes price as a barrier to entry.

Greatest for: Value-sensitive builders, Google Cloud groups, and particular person contributors who need frontier mannequin high quality with out a month-to-month subscription.

#5. GitHub Copilot (Microsoft/GitHub)

SWE-bench Verified (Agent Mode, default mannequin): ~56% Adoption: 4.7 million paid subscribers (January 2026) Pricing: $10/month (Professional), $19/month (Enterprise), $39/month (Professional+), Enterprise customized pricing; AI Credit billing transition on June 1, 2026

GitHub Copilot will not be probably the most succesful agent on this listing by benchmark, however it’s the most generally deployed. With 4.7 million paid subscribers — 75% year-over-year development — and 76% developer consciousness per GitHub’s Octoverse report, Copilot is the baseline AI coding device at most enterprise software program organizations. Microsoft CEO Satya Nadella confirmed in early 2026 that Copilot now represents a bigger enterprise than GitHub itself.

Two necessary updates for the present pricing image: GitHub added a Copilot Professional+ tier at $39/month that unlocks the complete mannequin roster and better compute limits. Extra considerably, GitHub introduced that Copilot is shifting to AI Credit-based billing on June 1, 2026, which implies sure agent actions, premium mannequin calls, and background job execution will draw from a credit pool quite than being included within the flat month-to-month price. Base plan costs are unchanged as of the announcement, however complete price for heavy agentic use could improve relying on how credit are consumed.

On mannequin choice: in February 2026, GitHub made Copilot a multi-model platform by including Claude and OpenAI Codex as out there backends for Copilot Enterprise and Professional clients. The 56% SWE-bench determine displays the default proprietary Copilot mannequin. Configuring it to make use of Claude Opus 4.7 or GPT-5.5 would push that quantity considerably larger — although premium mannequin calls draw from the credit pool beneath the brand new billing mannequin.

At $10/month for people and $19/month for enterprise seats, Copilot’s price-to-capability ratio is the strongest entry level for enterprise groups that want predictable licensing, SOC 2 compliance, audit logs, and broad IDE help throughout VS Code, JetBrains, Visible Studio, Neovim, and Xcode. In enterprise procurement, compliance posture usually outweighs a number of SWE-bench share factors.

Greatest for: Enterprise groups that want predictable licensing, compliance posture, and broad IDE help throughout a number of environments.

#6. Devin 2.0 (Cognition AI)

Efficiency: Greater on clearly scoped duties; considerably weaker on ambiguous or complicated duties Pricing (up to date April 14, 2026): Free, Professional $20/month, Max $200/month, Groups usage-based with $80/month minimal, Enterprise customized

Devin holds a particular place on this class’s historical past. Its 13.86% SWE-bench Lite rating at launch in early 2024 — the primary time any AI system had autonomously resolved actual GitHub points at significant scale — was industry-defining. By in the present day’s requirements, each device above it on this rating has surpassed that quantity by an element of 4 or extra.

Devin 2.0 is a considerably totally different product. It runs in a totally sandboxed cloud atmosphere with its personal IDE, browser, terminal, and shell. You assign a job; Devin produces a step-by-step plan you may assessment and edit; then it writes code, runs assessments, and submits a pull request. Interactive Planning and Devin Wiki — which auto-indexes repositories and generates structure documentation — tackle two of the unique’s greatest criticisms.

On well-scoped, well-defined duties — framework upgrades, library migrations, tech debt cleanup, check protection additions — Devin experiences larger success charges, with impartial developer testing constantly displaying robust outcomes on clearly specified work. Reliability drops sharply for ambiguous or architecturally complicated duties; one documented group check discovered much more failures than successes throughout 20 assorted duties, highlighting that job specification high quality immediately determines output high quality.

On pricing: Cognition retired its older Core and ACU-based self-serve plans on April 14, 2026 and launched cleaner tiers: Free, Professional at $20/month, Max at $200/month, Groups usage-based with an $80/month minimal, and Enterprise with customized pricing. When you’ve got seen the sooner “$20 Core + $2.25/ACU” pricing in different articles, it’s not present.

Cognition additionally partnered with Cognizant in January 2026 to combine Devin into enterprise engineering transformation choices, and launched Cognition for Authorities in February 2026 with FedRAMP Excessive authorization in progress — signaling a deliberate push into institutional deployments.

Greatest for: Groups with clearly scoped, well-specified engineering duties — migrations, check technology, framework upgrades — the place the price of reviewing AI output is decrease than the price of doing the work manually.

#7. OpenHands / OpenDevin (All-Fingers AI)

SWE-bench Verified: 72% GAIA Benchmark: 67.9% License: MIT Pricing: Free to self-host; pay just for mannequin API inference

OpenHands (previously OpenDevin, rebranded in late 2024 beneath the All-Fingers AI group) is the open-source group’s reply to Devin. With robust open-source adoption seen via GitHub exercise and group utilization, and a 72% SWE-bench Verified rating, it matches or exceeds business brokers at a number of value factors.

OpenHands helps 100+ LLM backends — any OpenAI-compatible API, together with Claude, GPT-5, Mistral, Llama, and native fashions through Ollama. The CodeAct agent can execute code, run terminal instructions, browse the net, and work together with web-based growth instruments inside a Docker sandbox. Its 67.9% on the GAIA benchmark confirms that net interplay capabilities are substantive.

The bring-your-own-key mannequin means zero platform markup — you pay inference prices on to your mannequin supplier. For open-source initiatives, budget-constrained groups, and builders who need full auditability of agent habits, it’s the strongest choice on this tier. Self-hosting requires Docker and entry to an LLM supplier API; there is no such thing as a hosted SaaS product.

Greatest for: Open-source groups, builders who need full management and auditability, and budget-conscious practitioners who have already got API credit with a serious mannequin supplier.

#8. Increase Code

SWE-bench Verified (self-reported, Increase harness): 70.6% Differentiator: Full repository context engine; MCP-interoperable Pricing: Group and Enterprise tiers

Increase Code’s 70.6% SWE-bench rating is self-reported utilizing Increase’s personal harness and printed on Increase’s engineering weblog. As with all agent-scaffolding-dependent scores, it needs to be learn as “what Increase + Opus 4.5 achieves with Increase’s context engine,” not a standalone mannequin quantity. That caveat said, the architectural perception behind the rating is actual and independently validated: within the February 2026 scaffold comparability described earlier, Increase’s context-first method outperformed different frameworks working the identical mannequin by 17 issues out of 731.

The core innovation is that Increase’s engine indexes a complete repository earlier than the agent begins work — quite than constructing context reactively from open recordsdata. For enterprise groups working in massive, mature monorepos, this produces measurably higher outcomes on duties that require cross-module reasoning. Increase additionally exposes its context engine through MCP (Mannequin Context Protocol), making it interoperable with different brokers. A developer might use Increase’s indexing whereas working Claude Code or Codex for technology.

Greatest for: Enterprise groups with massive, mature codebases who want deeper repository context than single-session instruments present.

#9. Aider

Pricing: Free (open-source); pay for mannequin API inference Structure: Git-native terminal agent

Aider is the git-native coding agent: it operates immediately in your native repository and constructions its modifications as a collection of atomic git commits with descriptive messages — a workflow that meshes properly with groups that do cautious code assessment. It helps any OpenAI-compatible mannequin, giving the identical model-agnostic flexibility as OpenHands, and runs fully within the terminal with no IDE dependency.

The place Aider lags behind higher-ranked instruments is on complicated, multi-step agentic duties that require net entry, browser interplay, or long-horizon planning. It’s a highly effective device inside a clearly outlined scope — terminal-based, git-integrated coding — quite than a general-purpose autonomous agent.

Greatest for: Builders who prioritize git-native workflows, clear commit histories, and full management over their editor atmosphere.

#10. Cline (Open-Supply)

Cline is VS Code’s hottest open-source AI coding extension, with 5 million installs claimed throughout supported marketplaces. It ships with Plan/Act modes, can run terminal instructions, edit recordsdata throughout a repository, automate browser testing, and lengthen via any MCP server. The bring-your-own-key structure means zero inference markup. Roo Code, a group fork, presents extra customization for groups that wish to transcend the core challenge.

Greatest for: VS Code builders who need open-source flexibility, full code auditability, and the power to deliver their very own fashions with out platform markup.

Marktechpost’s Visible Explainer

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Analysis Report · Might 2026

Greatest AI Brokers for Software program Growth — Ranked

A benchmark-driven take a look at the present discipline

10 brokers ranked by SWE-bench Verified, SWE-bench Professional, Terminal-Bench 2.0, and actual developer utilization. Contains the contamination warning each rating is lacking.

High SWE-bench Rating

93.9%

Claude Mythos Preview (restricted)

Greatest Obtainable

87.6%

Claude Code / Opus 4.7

What’s inside

Rankings · Benchmark methodology · SWE-bench contamination · Safety & governance · Layered stack information

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⚠ Benchmark Alert

The benchmark everybody cites is now disputed

SWE-bench Verified — contaminated as of Feb 2026

On February 23, 2026, OpenAI’s Frontier Evals workforce stopped reporting SWE-bench Verified scores. Their audit discovered 59.4% of the toughest check circumstances had elementary flaws, and that each main frontier mannequin — GPT-5.2, Claude Opus 4.5, Gemini 3 Flash — might reproduce gold-patch options verbatim from reminiscence utilizing solely a job ID. The benchmark was measuring coaching knowledge publicity, not coding capability.

OpenAI now recommends SWE-bench Professional for frontier coding analysis. Different labs nonetheless publish Verified scores — they continue to be helpful for broad route, however shouldn’t be handled as clear, goal measurements. All scores on this information are labeled accordingly.

Key rule

Deal with SWE-bench Verified as directional. Favor SWE-bench Professional or your individual held-out analysis on actual code.

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Benchmark Information

Three benchmarks — what every really measures

SWE-bench Verified

~88%

500 actual GitHub points (Python solely). Now contaminated. Self-reported. Use as route solely.

SWE-bench Professional

23–64%

1,865 duties throughout 4 languages. Scores differ wildly by harness — sub-25% beneath SWE-Agent, 64% beneath optimized scaffolds. Similar benchmark, totally different situations.

Terminal-Bench 2.0

~82%

Terminal workflows: shell, DevOps, pipelines. GPT-5.5 leads at 82.7%. Harness issues: similar mannequin can rating 57.5% vs 64.7% relying on setup.

Scaffolding impact

±17

Similar Opus 4.5 mannequin, three frameworks, 731 issues — 17 issues aside. Scaffolding ≈ mannequin high quality.

Backside line

No benchmark is a clear proxy. Run 50–100 duties by yourself codebase earlier than committing to any device.

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1

Claude Code — Anthropic

Opus 4.7 · Launched April 16, 2026

Self-verification (writes assessments, runs them, fixes failures earlier than surfacing outcomes). Multi-agent coordination for parallel workstreams. 1M token context for big repos. Pricing: $20–$200/month subscription · API $5/$25 per 1M tokens.

Greatest for

Complicated multi-file engineering, massive codebases, long-horizon refactoring — highest code high quality of any publicly out there agent.

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2

OpenAI Codex — GPT-5.5

Launched April 23, 2026 · CLI runs regionally in your machine

Terminal-Bench 2.082.7% #1
SWE-bench Professional (Public)58.6%
SWE-bench Verified*~88.7%

Vital: The Codex CLI is an area terminal device — cloud execution is the Codex Internet/IDE product. *OpenAI doesn’t self-report Verified scores; ~88.7% is from third-party trackers. Pricing: CLI open-source (ChatGPT plan or API key required) · Plus $20/mo · API $5/$30 per 1M tokens.

Greatest for

Terminal-native DevOps workflows, pipeline automation, fire-and-forget cloud execution through Codex Internet — and the strongest Terminal-Bench rating out there.

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3

Cursor

AI-native VS Code fork · $2B ARR (Feb 2026)

Default SWE-bench

~51.7%

model-dependent

Pace vs Copilot

+30%

job completion

With Opus 4.7

↑↑

ceiling rises to 87.6%

Mannequin-agnostic: helps Claude Opus 4.7, GPT-5.5, Gemini 3.1 Professional, Grok. Plan/Act mode for structured workflows. Background Brokers (Professional+ $60/mo) run autonomous cloud periods in parallel. Vital limitation: VS Code solely — no JetBrains, Neovim, or Xcode help.

Greatest for

VS Code-native builders who need one of the best AI-integrated each day modifying expertise. $20/month Professional is the most efficient IDE-native entry level.

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4

Gemini CLI — Google DeepMind

Gemini 3.1 Professional · Free tier out there

Main mannequin: Gemini 3.1 Professional (80.6%). Gemini 3 Flash (~78%) is the lighter/cheaper choice. 1M token context. Set up: npm set up -g @google/gemini-cli. Free tier removes all price boundaries.

Greatest for

Value-sensitive builders, Google Cloud groups, and anybody wanting frontier-quality coding with out a month-to-month subscription.

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5

GitHub Copilot

4.7M paid subscribers · Multi-model platform since Feb 2026

Default SWE-bench

~56%

Agent Mode

AI Credit

Jun 1

billing transition 2026

Now helps Claude Opus 4.7 and GPT-5.5 as backends (premium mannequin calls draw from AI Credit). Works throughout VS Code, JetBrains, Visible Studio, Neovim, Xcode. Pricing: $10 Professional · $19 Enterprise · $39 Professional+ · Enterprise customized.

SOC 2 compliant

Audit logs

6 IDEs

Greatest for

Enterprise groups needing predictable licensing, compliance posture, and broad IDE help throughout each atmosphere.

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Autonomous Brokers

#6 Devin 2.0 & #7 OpenHands

#6 Devin 2.0 — Cognition AI

Sandboxed

Full cloud VM with IDE, browser, terminal. Plans + executes + submits PRs autonomously. Greater success on clearly scoped duties; considerably weaker on ambiguous work.

Up to date Apr 14: Free · Professional $20 · Max $200 · Groups $80/mo min · Enterprise

#7 OpenHands — All-Fingers AI

72%

SWE-bench Verified. MIT licensed, free to self-host. 100+ LLM backends. CodeAct agent with Docker sandboxing and net shopping. GAIA: 67.9%.

Pay just for API inference · No hosted SaaS

Select Devin if

You’ve gotten clearly scoped, well-specified duties (migrations, check protection, framework upgrades) and capability to assessment AI output earlier than merging.

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Open-Supply Tier

#8 Increase Code · #9 Aider · #10 Cline

*Increase rating is self-reported through Increase’s personal harness

Increase Code — full repo context indexing earlier than the agent begins; MCP-interoperable. Greatest for big enterprise monorepos.
Aider — git-native terminal agent producing atomic commits. Greatest for clear commit-level workflows.
Cline — 5M installs, VS Code extension, bring-your-own-key, zero inference markup. Roo Code is the group fork.

All three

Pay just for API inference (no platform markup). Full code auditability. Efficient ceiling scales along with your chosen mannequin.

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Key Perception

The scaffolding drawback — similar mannequin, 17 issues aside

Mannequin used

Similar

Claude Opus 4.5

Rating hole

17

issues aside (Feb 2026)

In February 2026, three totally different agent frameworks ran an identical fashions in opposition to the identical 731 SWE-bench issues. They scored 17 points aside — a 2.3-point hole — purely from scaffolding variations. The winner (Increase Code) listed the complete repository earlier than beginning. The runner-up used a normal tool-call loop. The third used one-shot technology.

Implication: A benchmark rating labeled with a mannequin identify displays the mannequin AND the scaffold round it. Selecting an agent based mostly solely on the mannequin identify — “I’ll use whichever device runs Opus 4.7” — ignores the variable that usually issues most.

Rule of thumb

Context technique + retrieval high quality + verification loops ≈ mannequin model, relating to benchmark outcomes.

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Manufacturing Groups

Safety & governance — what benchmarks don’t measure

🔒 Sandboxing

Devin and Codex Internet run in remoted cloud VMs. Claude Code and Cline run with native system entry by default. Know the distinction.

🔑 Secret publicity

Brokers that learn .env recordsdata and config dirs are an energetic assault floor. Specific entry controls are non-optional.

💉 Immediate injection

Malicious strings in code feedback, situation descriptions, or docs can instruct brokers to take unauthorized actions. It is a recognized vulnerability class.

📋 Audit logging

GitHub Copilot and Increase Code have specific audit log options. Open-source instruments usually don’t — instrument your self or select a device that does.

Earlier than you ship AI-generated code

Outline your human assessment gate explicitly. The organizations working agentic coding safely in 2026 deal with that gate as a coverage, not a developer desire.

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Developer Patterns

How 70% of builders really stack these instruments

Layer 1 — Terminal agent

Claude Code or Codex for complicated work: multi-file refactors, architectural modifications, tough debugging. Use when a job would take a senior engineer hours.

Layer 2 — IDE extension

Cursor or Copilot for each day modifying: inline completions, fast edits, check technology. Eliminates context-switching overhead for routine work.

Layer 3 — Open-source device

Aider, Cline, or OpenHands for mannequin flexibility, zero markup on inference, and full auditability. Fallback when business instruments have outages or value modifications.

Most typical setup

Claude Code / Codex for arduous duties + Copilot or Cursor for each day movement + one open-source device for flexibility. Layer 1 + Layer 2 prices ~$30–40/mo.

The purpose

Utilizing a number of instruments isn’t indecision — it displays real specialization. No single agent dominates all three layers with equal high quality in the present day.

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Abstract Rankings · Might 2026

Full leaderboard

# Agent Key Metric Greatest For
Claude Mythos Preview 93.9% SWE-b-V (restricted) Not publicly out there
1 Claude Code (Opus 4.7) 87.6% SWE-b-V Code high quality, multi-file duties
2 OpenAI Codex (GPT-5.5) 82.7% Terminal-Bench Terminal / DevOps workflows
3 Cursor ~51.7% default (↑ w/ Opus 4.7) IDE-native each day dev
4 Gemini CLI 80.6% SWE-b-V Free tier, Google Cloud
5 GitHub Copilot ~56% default Agent Mode Enterprise, multi-IDE
6 Devin 2.0 Sandboxed autonomous Nicely-scoped duties
7 OpenHands 72% SWE-b-V Open-source, any mannequin
8 Increase Code 70.6%* (self-reported) Massive enterprise codebases
9 Aider Mannequin-dependent Git-native CLI
10 Cline Mannequin-dependent VS Code open-source

SWE-b-V = SWE-bench Verified (self-reported, see contamination notice). Learn the complete article for main supply hyperlinks.

The benchmark-maximizing technique and the productivity-maximizing technique aren’t the identical factor. Primarily based on group knowledge and developer surveys, roughly 70% of productive skilled builders in 2026 use two or extra instruments concurrently.

The modal sample is a layered stack:

Terminal brokers for complicated duties. Claude Code or Codex for multi-file refactoring, architectural modifications, tough debugging, or any job that requires holding substantial codebase context. These instruments earn their larger price on work that will take a senior engineer hours.

IDE extensions for each day modifying. Cursor or GitHub Copilot for inline completions, fast edits, check technology, and ambient help that accelerates routine coding work. The cognitive overhead of switching between a terminal agent and a separate editor is actual; IDE-native instruments eradicate it for on a regular basis duties.

Open-source instruments for mannequin flexibility. Aider, Cline, or OpenHands while you wish to check a brand new mannequin, keep away from platform markup, or want full auditability of agent habits. These additionally function a fallback when business instruments have outages or pricing modifications.

What the Subsequent 12 Months Look Like

MCP as infrastructure. The Mannequin Context Protocol is rising as a shared commonplace that lets instruments share context, hand off duties, and compose capabilities. Increase’s context engine uncovered through MCP, and Copilot accepting Claude and Codex as backends, counsel the sphere is shifting towards interoperability quite than winner-take-all consolidation.

Autonomous PR pipelines. GitHub Copilot’s cloud agent, Codex’s background execution mannequin, and Devin’s end-to-end PR workflow all level on the similar future: AI brokers that course of points from a backlog, work in a single day, and floor reviewed pull requests within the morning. The bottleneck is not AI high quality — it’s the assessment bandwidth of human engineers and the governance frameworks organizations are constructing round autonomous code modifications.

Enterprise governance as a differentiator: Gartner initiatives 40% of enterprise purposes will embrace task-specific AI brokers by finish of 2026, up from lower than 5% in the present day. Compliance posture, audit logs, knowledge dealing with ensures, and safety certifications will more and more be the deciding think about enterprise procurement — not SWE-bench place.

Open-source convergence: OpenHands at 72% SWE-bench Verified, and open-source fashions like MiniMax M2.5 (80.2% SWE-bench Verified) now matching proprietary frontier efficiency, present the standard hole between open and closed methods is closing. The remaining benefits for business instruments are scaffolding sophistication, enterprise help, and product polish — not uncooked mannequin functionality.

The Mythos ceiling: Claude Mythos Preview at 93.9% SWE-bench Verified — roughly 5 factors above one of the best publicly out there mannequin — alerts that the efficiency frontier is properly forward of what builders can presently entry. When fashions at that tier attain normal availability, count on the class rating to shift once more.


Main sources: Anthropic Claude Opus 4.7 announcement · AWS weblog: Claude Opus 4.7 on Amazon Bedrock · OpenAI: Introducing GPT-5.5 · OpenAI: Why we not consider SWE-bench Verified · OpenAI: Introducing GPT-5.3-Codex · Scale AI SWE-bench Professional public leaderboard · SWE-bench Professional arXiv paper · Official SWE-bench leaderboard · GitHub: openai/codex · Cognition: New self-serve plans for Devin · GitHub Weblog: Copilot shifting to usage-based billing · GitHub Changelog: Claude and Codex for Copilot Enterprise & Professional · Increase Code: Auggie tops SWE-bench Professional · Anthropic Mission Glasswing · Google DeepMind Gemini 3.1 Professional mannequin card · OpenHands GitHub repository


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