GeneBench
GPT-5.5 33.2%
Fading Agents analyze messy genomics and quantitative biology data across 103 multi-step problems. Scored by pass rate on verifiable final answers.
GPT-5.5 Pro scored 33.2 percent at launch.
- Made by
- OpenAI
- Released
- April 2026
- Kind
- Genomics and life sciences
- Level
- Expert
- Scored
- Checked automatically
- Answers
- Short answer
- Strongest model tested
- GPT-5.5 Pro #14 on the capability index
- Last in a launch post
- April 2026, dropped before it saturated
- Last model added
- April 2026
2
Models scored in lab cards
2
Launch posts list it, from 1 lab
2 models share the top score of 33.2%
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-5.5 33.2%
- 2 GPT-5.5 Pro 33.2%
Source: Labs’ model cards
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | GPT-5.5 | 33.2% | Apr 2026 | Lab model card | |
| 2 | GPT-5.5 Pro | 33.2% | Apr 2026 | Lab model card |
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
Source: Labs’ model cards
Labs headline it less often now, last in April 2026
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 |
|---|---|---|---|
| Apr 23, 2026 | GPT-5.5 Pro | 33.2 | GeneBench |
| Apr 23, 2026 | GPT-5.5 | 33.2 | GeneBench (GPT-5.5 Pro) |
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