They do it seems. o1 and o3 were based on the same base model. o4 is going to be... | Hacker News

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ankit219 on June 11, 2025 | parent | context | favorite | on: OpenAI o3-pro

They do it seems. o1 and o3 were based on the same base model. o4 is going to be based on a newer (and perhaps smarter) base model.

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