Biomedical image analysis (Anthropic)
Models run quantitative analyses of CT, MRI, histopathology and other images from public competitions. Scores are scaled to the best competition results.
Uses data from public biomedical image analysis competitions.
- Made by
- Anthropic
- Released
- September 2026
- Kind
- Research science
- Level
- Expert
- Scored
- Checked automatically
- Answers
- Agent task
- Tasks
- Kept private
- Strongest model tested
- Claude Opus 5.5 #4 on the capability index
- Last in a system card
- October 2026
- Last model added
- October 2026
Claude Sonnet 5.5 leads with 72.2%
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 Claude Sonnet 5.5 72.2%
- 2 Claude Opus 5.5 71.4%
- 3 Claude Haiku 5.5 43.5%
Source: Labs’ model cards
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | Claude Sonnet 5.5 | 72.2% | Sep 2026 | Lab model card | |
| 2 | Claude Opus 5.5 | 71.4% | Sep 2026 | Lab model card | |
| 3 | Claude Haiku 5.5 | 43.5% | Oct 2026 | Lab model card |
2 models have held number one in labs’ own numbers since its release in September 2026
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
Labs report it only in system cards
We read the headline results of 522 launch posts from 52 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 |
|---|---|---|---|---|
| Oct 7, 2026 | Claude Haiku 5.5 system card | 43.5 | Biomedical image analysis, one attempt per problem, max effort (8.13.5) | Capabilities |
| Sep 28, 2026 | Claude Sonnet 5.5 system card | 72.2 | Biomedical image analysis, one attempt per problem (8.17.7, Figure 8.17.A) | Capabilities |
| Sep 22, 2026 | Claude Opus 5.5 system card | 71.4 | Biomedical image analysis, 91 problems, one attempt per problem, normalized to the best published result (8.17.7) | Capabilities |
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