SWE-bench Verified: 2026 AI Leaderboard
Fix real GitHub issues in 12 open-source Python repos.
What it tests
SWE-bench Verified is a 500-issue subset of SWE-bench that has been human-validated as solvable. Each task is a real Python GitHub issue; the model is given the repo, the issue, and must produce a patch that makes the project's test suite pass.
How it is scored
Percentage of issues where the generated patch passes all hidden tests. This is end-to-end agentic coding, not just code-completion. Scores above 70% are state-of-the-art; a year ago it was 30%.
Why it matters
SWE-bench Verified is the closest industry-standard benchmark to 'can this model actually do my job'. It rewards code-reading, multi-file editing, and test-driven iteration -- not just autocomplete.
Leaderboard (4 models)
Sorted by SWE-bench Verifiedscore. Tier column shows the tool's overall AIToolTier rank, which blends this benchmark with pricing, features, and real-world usability.
| # | Model | Tier | SWE-bench Verified score | Variant | Overall |
|---|---|---|---|---|---|
| 1 | DeepSeek DeepSeek V4-Pro (SWE-bench + Arena Elo third-party verified post-launch; knowledge rows are V3.x baseline pending V4 figures). V4.1-Flash (2026-09-10) vendor-only so far: GPQA Diamond 90.9, DeepSWE 74.2, Terminal-Bench 2.1 90.6 -- third-party verification pending | A | 80.6% | SWE-bench Verified | 8.0/10 |
| 2 | Codex (OpenAI) GPT-5.2-Codex (HISTORICAL -- this model was RETIRED 2026-07-23; scores retained for trend context only). GPT-6 Sol and Luna joined Codex 2026-09-22: OpenAI reports DeepSWE v1.1 68.8% (Sol, max effort) and 66.6% (Luna, max) -- first-party, third-party verification pending; see Known Issues | A | 72% | SWE-bench Verified | 8.3/10 |
| 3 | ChatGPT GPT-5.5 (launched 2026-04-23; scores below are the GPT-5.4 baseline -- GPT-5.5 launch benchmarks per OpenAI are logged in Known Issues, pending third-party verification) | A | 72% | SWE-bench Verified | 8.8/10 |
| 4 | Qwen (Alibaba) Qwen3.5-397B MoE | A | 69.4% | SWE-Bench Verified | 8.8/10 |
About SWE-bench Verified
- Creator
- Princeton & OpenAI, 2023 (Verified subset 2024)
- Unit
- % (max 100)
- Official source
- https://www.swebench.com/