DeepSeek-R1 vs DeepSeek-V3.1
Direct spec comparison of DeepSeek-R1 (from DeepSeek) and DeepSeek-V3.1 (from DeepSeek). Want a 3- or 4-way comparison? Open the multi-model tool →
 DeepSeek-R1DeepSeek | DeepSeek-V3.1 DeepSeek | |
|---|---|---|
| Vendor | DeepSeek | DeepSeek |
| Family | DeepSeek | DeepSeek |
| Release date | 2025-01-20 | 2025-08-21 |
| Context window | 128,000 tokens | 128,000 tokens |
| Parameters | 671B | 671B |
| Modality | text | text |
| License | MIT | MIT |
| Source | open weights | open weights |
| Description | Reasoning-focused open-weight model. | Large MoE open-weight model. Predecessor to DeepSeek-V4. |
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