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 DeepSeek-V4-ProDeepSeek | DeepSeek-V4-Flash DeepSeek |  Gemini 2.5 Flash |  Grok 4xAI | |
|---|---|---|---|---|
| Vendor | DeepSeek | DeepSeek | xAI | |
| Family | DeepSeek | DeepSeek | Gemini | Grok |
| Release date | 2026-04-22 | 2026-04-22 | — | 2025-07-09 |
| Context window | 1,000,000 tokens | 1,000,000 tokens | 1,000,000 tokens | 256,000 tokens |
| Parameters | 1.6T (49B active) | 284B (13B active) | — | — |
| Modality | text | text | text, vision, audio | text |
| License | MIT | MIT | proprietary | proprietary |
| Source | open weights | open weights | proprietary | proprietary |
| Description | DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | — | — |
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Gemini 2.5 Flash✓
Claude 4.6 Sonnetmax
GPT-5.5maxDeepSeek-V4-Flash✓
Qwen3.6-27BmaxGemini 3 PromaxDeepSeek-V4-Pro✓Claude 4.7 OpusmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5maxGrok 4✓Qwen3 235Bmaxo3maxGPT-4.1max
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Mistral Large 2maxMax 4 models. Remove one to add another.