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Meta | xAI | OpenAI | ||
|---|---|---|---|---|
| Vendor | Meta | xAI | OpenAI | |
| Family | Llama | Grok | Gemini | o-series |
| Release date | 2025-04-05 | 2025-07-09 | — | 2025-04-16 |
| Context window | 1,000,000 tokens | 256,000 tokens | 1,000,000 tokens | 200,000 tokens |
| Parameters | 400B | — | — | — |
| Modality | text, vision | text | text, vision, audio | text, vision |
| License | Llama 4 Community License | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | Mixture-of-experts open-weight model from Meta. | — | — | Reasoning-focused model in the o-series. |
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