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 GPT-5OpenAI |  Gemini 3.5 |  DeepSeek-V4-ProDeepSeek | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | DeepSeek | |
| Family | GPT | Gemini | DeepSeek | DeepSeek |
| Release date | 2025-08-07 | 2026-05-20 | 2026-04-22 | 2026-04-22 |
| Context window | 400,000 tokens | 2,000,000 tokens | 1,000,000 tokens | 1,000,000 tokens |
| Parameters | — | — | 1.6T (49B active) | 284B (13B active) |
| Modality | text, vision, audio | text, vision, audio, video | text | text |
| License | proprietary | proprietary | MIT | MIT |
| Source | proprietary | proprietary | open weights | open weights |
| Description | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | 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. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 85.1% | 88.9% | 84.2% | — |
| GPQA-D | 87.3% | 91.2% | 82.4% | — |
| HumanEval | 95.2% | — | 95.1% | — |
| Aider | 85.4% | — | 80.1% | — |
| AIME-25 | 91.0% | 96.1% | 88.6% | — |
| LiveCB | 74.5% | — | 72.4% | — |
| MMMU | 74.1% | 86.0% | — | — |
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