Benchmark Almanac

Artificial Analysis Coding Agent Index v1.1

GPT-5.6 Sol 80.0 leads since Jul 2026 In use

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 Jun 2026 Fixing real repositories Public tasks plus a private test set Last in a launch post Jul 2026 Last model added Jul 2026
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.
artificialanalysis.ai
3
Models scored in lab cards
3
Launch posts list it, from 1 lab

GPT-5.6 Sol leads with 80.0 among models released by Jul 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 Jul 2026, and nobody has reported a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 80.0 GPT-5.6 Sol
  2. 77.4 GPT-5.6 Terra
  3. 74.6 GPT-5.6 Luna
  1. 1 GPT-5.6 Sol 80.0
  2. 2 GPT-5.6 Terra 77.4
  3. 3 GPT-5.6 Luna 74.6
#ModelScoreSettingDateSource
1 GPT-5.6 Sol 80.0 Jul 2026 Model card
2 GPT-5.6 Terra 77.4 Jul 2026 Model card
3 GPT-5.6 Luna 74.6 Jul 2026 Model card

Number one over time

Lab claims count from the day the card came out, independent runs from the model’s release.

OpenAI
Lab claims Replaced by 1.4, Aug 2026
GPT-5.6 Sol 80.0

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Reported by the lab in its model card
74 76 78 80 74 76 78 80

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.

OpenAI
DateLaunch postScoreAs the post writes it
9 Jul 2026 GPT-5.6 Luna 74.6 Artificial Analysis Coding Agent Index v1.1
9 Jul 2026 GPT-5.6 Terra 77.4 Artificial Analysis Coding Agent Index v1.1
9 Jul 2026 GPT-5.6 Sol 80 Artificial Analysis Coding Agent Index v1.1 (Sol, max)

Versions

Replaces Artificial Analysis Coding Agent Index v1.0 Replaced by Artificial Analysis Coding Agent Index v1.4

More in Coding

All 243 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%
  • SWE-bench Multilingual In use 300 GitHub-issue tasks across nine programming languages in SWE-bench format. Patch graded by repository tests. Claude Opus 5.5 93.9%
  • 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%
  • 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