Claude 2.1
ECI#193
119Claude 2.1 is a closed-weights model from Anthropic, released November 21, 2023. It has an ECI score of 119 and ranks 193rd of 249 tracked models. At the time of its release, it ranked 5th of 35 tracked models. At $8/Mtok for input tokens and $24/Mtok for output tokens, it is more expensive per token than similarly-capable models.
Input price$8 / 1M tokens
Output price$24 / 1M tokens
ParametersUnknown
Training computeUnknown
Claude 2.1 vs select alternatives
Reasoning
| Domain | Benchmark | Claude 2.1 | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 119 | 120 | 126 | 117 | |
| Ranking | #193 | #188 | #173 | #200 | |
| Conceptual reasoning | DTBenchBest score 98.4% | ||||
| Mathematics | OTIS Mock AIME 2024-2025Best score 100.0% | ||||
| Science | GPQA DiamondBest score 95.8% | ||||
| World knowledge | MMLUBest score 88.1% |
