Claude 4.6 Sonnet vs DeepSeek-V4-Flash
Direct spec comparison of Claude 4.6 Sonnet (from Anthropic) and DeepSeek-V4-Flash (from DeepSeek). Want a 3- or 4-way comparison? Open the multi-model tool →
 Claude 4.6 SonnetAnthropic |  DeepSeek-V4-FlashDeepSeek | |
|---|---|---|
| Vendor | Anthropic | DeepSeek |
| Family | Claude | DeepSeek |
| Release date | — | 2026-04-22 |
| Context window | 200,000 tokens | 1,000,000 tokens |
| Parameters | — | 284B (13B active) |
| Modality | text, vision | text |
| License | proprietary | MIT |
| Source | proprietary | open weights |
| Description | — | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
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