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OpenAI's o3 reasoning model — extended chain-of-thought for the hardest math, science, and coding problems.
200K tokens$10 in · $40 out / 1MTransformerProprietary
Benchmarks
o3
79.4%o4-mini
76.1%o3-mini
62.1%Agent2030-v2.3 (o3 + GPT-4.1 + Gemini 2.5 Pro)
