OpenAI is slowly inviting selected users to test a whole new set of reasoning models named o3 and o3 mini, successors to the o1 and o1-mini models that just entered full release earlier this month.

OpenAI has unveiled its latest AI models, o3 and o4 Mini, which represent a substantial advancement in artificial intelligence reasoning. These models are designed to excel in critical areas such as ...

OpenAI has unveiled its latest AI models, o3 and o4-mini, representing a pivotal advancement in artificial intelligence. These models introduce enhanced reasoning, seamless tool integration, and ...

UPDATE: Apr. 16, 2025, 2:18 PM EDT Now that the OpenAI livestream has ended, this article has been updated with the latest information about the o3 and o4-mini launch. OpenAI's o3 and o4-mini models ...

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Last week, OpenAI released its new o3 and o4-mini reasoning models, which perform significantly better than their o1 and o3-mini predecessors and have new capabilities like “thinking with images” and ...

Earlier this week via blog post, OpenAI released their newest AI models: o3 and o4-mini. These models are the company’s “smartest and most capable models to date” and their first reasoning models that ...