Benchmark Almanac

Robo-bench

GPT-6.1 Sol 28.3% leads since Oct 2026 Not in model cards

General agents control a simulated 7-DoF Franka arm and a 29-DoF humanoid through motor commands, sensors and camera images only, across 24 tasks.

The agent gets the robot datasheet and kinematic model but never the MuJoCo simulator itself. Most tasks are held out. Seven models on 2026-10-13, led by GPT-6.1 Sol at 28.33%.

Made by Vals AI Released Oct 2026 Simulated robots Tasks kept private Last model added Oct 2026 Scores refreshed 2 Nov 2026
Level
Expert Specialists with years of training, often over hours of work
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.
Leaderboard
7
Models scored on its own leaderboard

GPT-6.1 Sol leads with 28.3%

Best score per model from the benchmark's own leaderboard, read on 2 Nov 2026. Where a model ran with several settings or harnesses, we keep its best.

  1. 28.3 GPT-6.1 Sol
  2. 23.3 GPT-6 Astra
  3. 14.6 Claude Opus 5.5
  4. 10.4 Muse Wonder Full
  5. 5.83 Claude Fable 5.1
  6. 0.83 Gemini 4 Argon
  7. 0.21 Grok 4.7
  1. 1 GPT-6.1 Sol 28.3%
  2. 2 GPT-6 Astra 23.3%
  3. 3 Claude Opus 5.5 14.6%
  4. 4 Muse Wonder Full 10.4%
  5. 5 Claude Fable 5.1 5.83%
  6. 6 Gemini 4 Argon 0.83%
  7. 7 Grok 4.7 0.21%
#ModelScoreSettingDateSource
1 GPT-6.1 Sol 28.3% Sep 2026 Official leaderboard
2 GPT-6 Astra 23.3% Sep 2026 Official leaderboard
3 Claude Opus 5.5 14.6% Sep 2026 Official leaderboard
4 Muse Wonder Full 10.4% Oct 2026 Official leaderboard
5 Claude Fable 5.1 5.83% Sep 2026 Official leaderboard
6 Gemini 4 Argon 0.83% Sep 2026 Official leaderboard
7 Grok 4.7 0.21% Sep 2026 Official leaderboard

Number one over time

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

OpenAI
Own leaderboard 1 leader
GPT-6.1 Sol 28.3%

Scores over time

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

On the benchmark’s own leaderboard Best so far
0% 20% 40% 60% 80% 100% Near the ceiling (85%) GPT-6.1 Sol GPT-6 Astra Claude Fable 5.1 0% 20% 40% 60% 80% 100% Near the ceiling (85%) GPT-6.1 Sol Claude Fable 5.1

No lab model card reports it yet

We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark.

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