Claude 3 Opus
anthropic/claude-3-opus-20240229
Creator
AnthropicReleased
2024-02-29Weights
not reportedContext
not reportedPrice in / out per Mtok
not reported / not reportedState
rankedHealth summary
1 of 3 scores sit on benchmarks that still discriminate. 1 is vendor-reported with no independent measurement to check it against. 2 sit on benchmarks with a high risk of test-set contamination.
Epoch Capability Index
126.9 (121.8–129.8)
Epoch AI's Capability Index. A composite score with no benchmark health record behind it, so it is never this site's ranking basis and is always attributed. Published by Epoch AI under CC BY 4.0. fetched 2026-10-19
Scores
| Benchmark | Config | Score | Harness | Provenance | Measured | Health |
|---|---|---|---|---|---|---|
| Knowledge | ||||||
| GPQAnearing saturation | base | 47.2% | not reported | ind. | 2024-02-29 | superseded |
| On benchmarks that no longer discriminateKept visible on purpose. These are often the numbers a launch announcement leads with. | ||||||
| MMLUsaturated | base | 84.6% | not reported | ind. | 2024-02-29 | saturatedcontaminatedsuperseded |
| WinoGrandesaturated | base | 88.5% | not reported | vendor | 2024-02-29 | saturatedcontaminatedvendor only |