ReproBAIT
Agents independently reproduce biological AI models from published scientific papers. Scored as success rate.
Third-party SecureBio evaluation reported in OpenAI system cards.
- 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.
GPT-5.6 Sol leads with 85%
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.
- 1 GPT-5.6 Sol 85%
- 2 GPT-6 Astra 83%
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | GPT-5.6 Sol | 85% | Jun 2026 | Model card | |
| 2 | GPT-6 Astra | 83% | Sep 2026 | Model card |
Number one over time
Lab claims count from the day the card came out, independent runs from the model’s release.
The best score passed 85% in Jun 2026
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Labs report it only in system cards
We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark. Some system cards do, below.
3 system cards report it, from 1 lab
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| 3 Sep 2026 | GPT-6 Astra system card | 83 | SecureBio ReproBAIT, share of published performance reached, helpful-only checkpoint, six tasks (10.1.1.4) | Bio and chem risk |
| 9 Jul 2026 | GPT-5.6 Sol system card | 85 | SecureBio ReproBAIT, railfree variant of GPT-5.6 (9.1.1.8) | Bio and chem risk |
| 25 Jun 2026 | GPT-5.6 Sol system card | 85 | SecureBio ReproBAIT, railfree variant of GPT-5.6 (9.1.1.8) | Bio and chem risk |
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