Anthropic Organic Chemistry V2 evaluation (Organic chemistry V2)
We show this table for reference; we do not rank on it.
Chemistry tasks covering spectroscopy, synthesis planning, reaction prediction, and chemical structure images.
Benchmark score on Organic chemistry V2 — November 13, 2026
We compile the Organic chemistry V2 rows from provider self-reports. Claude Opus 5 leads the table at 61.6%. We do not use these results to rank models overall.
1 modelKnowledgeCurrentDisplay onlyUpdated November 13, 2026
Benchmark score table (1 model)
The one result on this page was reported by the lab that built the model.
| Rank | Model / configuration | Score | Who ran it | Parameters (B) | Open / closed |
|---|---|---|---|---|---|
| 1 | Claude Opus 5AnthropicReported by Anthropic | 61.6% | Reported by Anthropic | Not reported | Closed |
- Lab-reported
- Benchmark-run
- Independent
About Organic chemistry V2
Year
2026
Tasks
Organic chemistry reasoning tasks
Format
Task score
Difficulty
Expert organic chemistry
Section 8.17.5 reports the updated internal evaluation. Ten of 1,260 Opus 5 attempts timed out and were excluded from aggregation.
Freshness and provenance
Version
Organic chemistry V2 2026
Refresh cadence
Quarterly
Staleness state
Current
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
Questions
What does Organic chemistry V2 measure?
Chemistry tasks covering spectroscopy, synthesis planning, reaction prediction, and chemical structure images.
Which model scores highest on Organic chemistry V2?
Claude Opus 5 by Anthropic currently leads with a score of 61.6% on Organic chemistry V2.
How many models are evaluated on Organic chemistry V2?
1 AI models have published results on Organic chemistry V2 in the BenchLM catalog.
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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