Artificial Analysis Coding Agent Index v1.1
Version 1.1 of Artificial Analysis's coding agent index, which replaced SWE-Bench-Pro-Hard-AA with DeepSWE.
In use from June to August 2026. Components: DeepSWE, Terminal-Bench 2.0 and SWE-Atlas-QnA. Versions 1.2 and 1.3 (July 2026) changed only how SWE-Atlas-QnA is graded (binary pass/fail, then Scale AI's Task Resolve Rate), so they share this record.
- Made by
- Artificial Analysis
- Released
- June 2026
- Kind
- Fixing real repositories
- Scored
- Checked automatically
- Answers
- Agent task
- Tasks
- Public, plus a private test set
- Strongest model tested
- GPT-5.6 Sol #13 on the capability index
- Last in a launch post
- July 2026
- Last model added
- July 2026
GPT-5.6 Sol leads with 80.0 among models released by July 2026
Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.
The newest model with a score here came out in July 2026, and nobody has reported a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:
- Claude Fable 5.2
-
Gemini 4 Carbon - GPT-6 Astra
- Claude Opus 5.5
- and 14 more
- 1 GPT-5.6 Sol 80.0
- 2 GPT-5.6 Terra 77.4
- 3 GPT-5.6 Luna 74.6
Source: Labs’ model cards
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | GPT-5.6 Sol | 80.0 | Jul 2026 | Lab model card | |
| 2 | GPT-5.6 Terra | 77.4 | Jul 2026 | Lab model card | |
| 3 | GPT-5.6 Luna | 74.6 | Jul 2026 | Lab model card |
Number one over time
Lab claims count from the day the card came out, independent runs from the model’s release.
Source: Labs’ model cards
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Source: Labs’ model cards
One lab put it in a launch post in the last six months
Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.
| Date | Launch post | Score | As the post writes it |
|---|---|---|---|
| Jul 9, 2026 | GPT-5.6 Luna | 74.6 | Artificial Analysis Coding Agent Index v1.1 |
| Jul 9, 2026 | GPT-5.6 Terra | 77.4 | Artificial Analysis Coding Agent Index v1.1 |
| Jul 9, 2026 | GPT-5.6 Sol | 80 | Artificial Analysis Coding Agent Index v1.1 (Sol, max) |
Versions
More in Coding
- SWE-bench Verified In use 500 human-validated GitHub issues from 12 Python repos. Agent writes a patch that must pass hidden tests. Claude Opus 4.7 83.5%
- LiveCodeBench v6 In use Competitive programming problems collected after model cutoffs from LeetCode, AtCoder, Codeforces. Scored pass@1 on hidden tests.
DeepSeek-V4-Pro 93.5% - SWE-bench Multilingual In use 300 GitHub-issue tasks across nine programming languages in SWE-bench format. Patch graded by repository tests. Claude Fable 5.2 96.6%
- DeepSWE In use 113 original long-horizon engineering tasks across 91 repos and five languages, written from scratch. Hand-written verifiers accept alternative solutions. GPT-6 Astra 74.1%
- SciCode In use Scientist-curated research coding problems split into subproblems across natural sciences. Code checked against test cases.
Seed2.1 Pro 59.8% - Codeforces rating In use Model solves recent Codeforces contest problems. An Elo-style rating is computed from simulated contest performance. DeepSeek V4.1 Flash 3,471