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OpenAI | Meta | OpenAI | DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | Meta | OpenAI | DeepSeek |
| Family | GPT | Llama | GPT | DeepSeek |
| Release date | 2025-08-07 | 2025-04-05 | 2025-04-14 | 2025-01-20 |
| Context window | 400,000 tokens | 1,000,000 tokens | 1,000,000 tokens | 128,000 tokens |
| Parameters | — | 400B | — | 671B |
| Modality | text, vision, audio | text, vision | text, vision | text |
| License | proprietary | Llama 4 Community License | proprietary | MIT |
| Source | proprietary | open weights | proprietary | open weights |
| Description | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | Mixture-of-experts open-weight model from Meta. | — | Reasoning-focused open-weight model. |
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