Claude 3 Opus
ECI#168
127Claude 3 Opus is a closed-weights model from Anthropic, released February 29, 2024. It has an ECI score of 127 and ranks 168th of 249 tracked models. At the time of its release, it ranked 1st of 51 tracked models. At $15/Mtok for input tokens and $75/Mtok for output tokens, it is more expensive per token than similarly-capable models.
Input price$15 / 1M tokens
Output price$75 / 1M tokens
ParametersUnknown
Training computeUnknown
Claude 3 Opus vs select alternatives
Reasoning
| Domain | Benchmark | Claude 3 Opus | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 127 | 120 | 126 | 122 | |
| Ranking | #168 | #188 | #171 | #183 | |
| Conceptual reasoning | LMCABest score 63.3 | 17.0 | — | 9.8 | — |
DTBenchBest score 98.4% | |||||
| Mathematics | MATH Level 5Best score 98.1% | ||||
OTIS Mock AIME 2024-2025Best score 100.0% | |||||
| Science | GPQA DiamondBest score 95.8% | ||||
| Software engineering | METR Time HorizonsBest score 1044.8 | 4.0 | — | 5.4 | — |
| World knowledge | MMLUBest score 88.1% |
