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 o3OpenAI |  Gemini 3 Pro | Gemini 2.5 Flash |  Claude 4.6 SonnetAnthropic | |
|---|---|---|---|---|
| Vendor | OpenAI | Anthropic | ||
| Family | o-series | Gemini | Gemini | Claude |
| Release date | 2025-04-16 | 2026-04-22 | — | — |
| Context window | 200,000 tokens | 2,000,000 tokens | 1,000,000 tokens | 200,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision | text, vision, audio, video | text, vision, audio | text, vision |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Reasoning-focused model in the o-series. | Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers. | — | — |
| Links |
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Gemini 2.5 Flash✓Claude 4.6 Sonnet✓GPT-5.5max
DeepSeek-V4-Flashmax
Qwen3.6-27BmaxGemini 3 Pro✓DeepSeek-V4-PromaxClaude 4.7 OpusmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5max
Grok 4maxQwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.