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OpenAI | DeepSeek | OpenAI | Mistral | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | OpenAI | Mistral |
| Family | GPT | DeepSeek | GPT | Mistral |
| Release date | 2025-04-14 | 2026-04-22 | 2025-08-07 | 2024-07-24 |
| Context window | 1,000,000 tokens | 1,000,000 tokens | 400,000 tokens | 128,000 tokens |
| Parameters | — | 284B (13B active) | — | 123B |
| Modality | text, vision | text | text, vision, audio | text |
| License | proprietary | MIT | proprietary | Mistral Research License |
| Source | proprietary | open weights | proprietary | open weights |
| Description | — | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — |
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