Anthropic Claude 2.1 vs DeepSeek DeepSeek-V4-Flash — side-by-side specs.
Anthropic Claude 2.1 | DeepSeek DeepSeek-V4-Flash | |
|---|---|---|
| Overview | ||
| Company | Anthropic | DeepSeek |
| Release date | Nov 21 2023 | Apr 24 2026 |
| Model type | — | — |
| Open source | No | Yes |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 88.1% |
| Timeline | ||
| Release gap | Claude 2.1 shipped 885 days before DeepSeek-V4-Flash | |
Claude 2.1 and DeepSeek-V4-Flash don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 2.1 shipped 885 days before DeepSeek-V4-Flash, so benchmark comparisons should account for the intervening progress.
DeepSeek-V4-Flash is an open-source / open-weight model; Claude 2.1 is proprietary.
Direct benchmark comparisons are unavailable — Claude 2.1 and DeepSeek-V4-Flash don't publish scores on any of the same benchmarks.