Compare models
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 DeepSeek-R1DeepSeek |  Grok 4xAI | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|
| Vendor | DeepSeek | xAI | DeepSeek |
| Family | DeepSeek | Grok | DeepSeek |
| Release date | 2025-01-20 | 2025-07-09 | 2026-04-22 |
| Context window | 128,000 tokens | 256,000 tokens | 1,000,000 tokens |
| Parameters | 671B | — | 284B (13B active) |
| Modality | text | text | text |
| License | MIT | proprietary | MIT |
| Source | open weights | proprietary | open weights |
| Description | Reasoning-focused open-weight model. | — | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
| Links |
