Indicators / series
epoch_bench.claude_opus_4_8_max_recxwudcuzfuj0ajy.posttrainbench.pt
Source: Epoch AI benchmarks and Capabilities Index (Epoch AI) · CC BY 4.0 · CSV
Epoch AI, Benchmarking Hub and Epoch Capabilities Index (CC BY 4.0)
| id | value | grade | as of date | published date | tier | audited vs reported | extraction method | review status | retrieved at | http status | content hash | supersedes id | url | flags |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| a082661650c2c17d | 32.9% | grade B, evidence tier 6 | 2026-05-28 | 2026-05-28 | 6 | reported | api | approved | 2026-09-22 10:28 | 200 | 55692b9c1ecf | — | source page |
Raw snippets and dispute text
- a082661650c2c17d {"Average (%)": "0.329", "Cost per task": null, "Model version": "claude-opus-4-8_max", "Name": "Opus 4.8 (Max)", "Organization": "Anthropic", "Release date": "2026-05-28", "Scaffold": "Claude Code", "id": "recxwUdcUZfUJ0Ajy"}