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 DeepSeek-V3.1DeepSeek |  Gemini Omni |  GPT-5 ProOpenAI | Gemini 3.5 | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | ||
| Family | DeepSeek | Gemini | GPT | Gemini |
| Release date | 2025-08-21 | 2026-05-20 | 2025-08-07 | 2026-05-20 |
| Context window | 128,000 tokens | 1,000,000 tokens | 400,000 tokens | 2,000,000 tokens |
| Parameters | 671B | — | — | — |
| Modality | text | text, vision, audio, video | text, vision, audio | text, vision, audio, video |
| License | MIT | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model. | Higher-reasoning variant of GPT-5, used for harder scientific and research tasks (e.g., immunology breakthroughs at NIH). Same 400K context as GPT-5; trades latency for depth. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | — | — | 88.9% |
| GPQA-D | — | — | — | 91.2% |
| AIME-25 | — | — | — | 96.1% |
| MMMU | — | 82.5% | — | 86.0% |
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