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 DeepSeek-V3.1DeepSeek |  Gemini 3.5 |  o3OpenAI | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | DeepSeek | |
| Family | DeepSeek | Gemini | o-series | DeepSeek |
| Release date | 2025-08-21 | 2026-05-20 | 2025-04-16 | 2026-04-22 |
| Context window | 128,000 tokens | 2,000,000 tokens | 200,000 tokens | 1,000,000 tokens |
| Parameters | 671B | — | — | 284B (13B active) |
| Modality | text | text, vision, audio, video | text, vision | text |
| License | MIT | proprietary | proprietary | MIT |
| Source | open weights | proprietary | proprietary | open weights |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | Reasoning-focused model in the o-series. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 88.9% | — | — |
| GPQA-D | — | 91.2% | 87.7% | — |
| AIME-25 | — | 96.1% | 88.9% | — |
| MMMU | — | 86.0% | — | — |
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Mistral Large 2maxMax 4 models. Remove one to add another.