Model comparison
Claude 2 vs Claude 2.1
Claude 2 and Claude 2.1 score almost the same on the Noometry Index (25.0 vs 25.2), so choose on price, context window or the category you care about most.
Last verified . 5 shared benchmarks.
Summary
- They share 5 benchmarks with published results for both. Claude 2 scores higher in 2 categories and Claude 2.1 in 1 category; one gap is clear of the uncertainty.
Side by side
| Claude 2 | Claude 2.1 | |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Noometry Index | 25.0 | 25.2 |
| Released | 2023-07-11 | 2023-11-21 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 8 | 7 |
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Category by category
Coding Not comparable
Claude 2: —, Claude 2.1: 26.2 (#327)
| Benchmark | Claude 2 | Claude 2.1 |
|---|---|---|
| WeirdML | — | 7.1% |
| HumanEval+ | 61.6% | — |
Reasoning Too close to call
Claude 2: 21.7 (#216), Claude 2.1: 21.4 (#221)
| Benchmark | Claude 2 | Claude 2.1 |
|---|---|---|
| DTBench | 51.9% | 51% |
| Epoch Capabilities Index | 120.13 | 119.27 |
| ForecastBench | — | 54.2 |
Math Too close to call
Claude 2: 9.3 (#320), Claude 2.1: 10.2 (#315)
| Benchmark | Claude 2 | Claude 2.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 1.9% |
| MATH Level 5 | 11.7% | — |
Knowledge Claude 2 leads
Claude 2: 16.9 (#287), Claude 2.1: 15.4 (#292)
| Benchmark | Claude 2 | Claude 2.1 |
|---|---|---|
| GPQA Diamond | 34.7% | 33% |
| MMLU | 78.5% | 73.5% |
| TriviaQA | 87.5% | — |
Frequently asked questions
Is Claude 2 better than Claude 2.1?
Claude 2 and Claude 2.1 score almost the same on the Noometry Index (25.0 vs 25.2), so choose on price, context window or the category you care about most.
How many benchmarks do Claude 2 and Claude 2.1 share?
5 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and Claude 2.1 has 7.