Model comparison
Claude 1.3 vs Claude 2.1
Claude 2.1 has enough public results to be ranked (#345); Claude 1.3 does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both.
Side by side
| Claude 1.3 | Claude 2.1 | |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Noometry Index | — | 25.2 |
| Released | 2023-04-18 | 2023-11-21 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 2 | 7 |
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Category by category
Coding Not comparable
Claude 1.3: —, Claude 2.1: 26.2 (#327)
| Benchmark | Claude 1.3 | Claude 2.1 |
|---|---|---|
| WeirdML | — | 7.1% |
Reasoning Not comparable
Claude 1.3: —, Claude 2.1: 21.4 (#221)
| Benchmark | Claude 1.3 | Claude 2.1 |
|---|---|---|
| DTBench | — | 51% |
| Epoch Capabilities Index | — | 119.27 |
| ForecastBench | — | 54.2 |
Math Not comparable
Claude 1.3: —, Claude 2.1: 10.2 (#315)
| Benchmark | Claude 1.3 | Claude 2.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 1.9% |
Knowledge Not comparable
Claude 1.3: —, Claude 2.1: 15.4 (#292)
| Benchmark | Claude 1.3 | Claude 2.1 |
|---|---|---|
| MMLU | 77% | 73.5% |
| GPQA Diamond | — | 33% |
| TriviaQA | 86.7% | — |
Frequently asked questions
Is Claude 1.3 better than Claude 2.1?
Claude 2.1 has enough public results to be ranked (#345); Claude 1.3 does not yet, so treat this comparison as directional.
How many benchmarks do Claude 1.3 and Claude 2.1 share?
1 benchmark has published results for both models. Claude 1.3 has 2 scored results on Noometry and Claude 2.1 has 7.