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Anthropic | DeepSeek | OpenAI | xAI | |
|---|---|---|---|---|
| Vendor | Anthropic | DeepSeek | OpenAI | xAI |
| Family | Claude | DeepSeek | GPT | Grok |
| Release date | 2025-10-01 | 2025-01-20 | 2025-08-07 | 2025-07-09 |
| Context window | 200,000 tokens | 128,000 tokens | 400,000 tokens | 256,000 tokens |
| Parameters | — | 671B | — | — |
| Modality | text, vision | text | text, vision, audio | text |
| License | proprietary | MIT | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Fast, cost-effective Claude model. | Reasoning-focused open-weight model. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — |
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