Compare models
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 Claude 4.6 SonnetAnthropic |  Gemini 2.5 Pro |  o3OpenAI | |
|---|---|---|---|
| Vendor | Anthropic | OpenAI | |
| Family | Claude | Gemini | o-series |
| Release date | — | 2025-03-25 | 2025-04-16 |
| Context window | 200,000 tokens | 2,000,000 tokens | 200,000 tokens |
| Parameters | — | — | — |
| Modality | text, vision | text, vision, audio, video | text, vision |
| License | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary |
| Description | — | Predecessor to Gemini 3 Pro. | Reasoning-focused model in the o-series. |
| Links |
