OpenAI o3

o3
Developer(s)OpenAI
Initial release
  • o3-mini: January 31, 2025 (2025-01-31)
  • o3: April 16, 2025 (2025-04-16)
PredecessorOpenAI o1
Successoro3-mini: OpenAI o4-mini
Type

OpenAI o3 is a reflective generative pre-trained transformer (GPT) model developed by OpenAI as a successor to OpenAI o1 for ChatGPT. It is designed to devote additional deliberation time when addressing questions that require step-by-step logical reasoning.[1][2] On January 31, 2025, OpenAI released a smaller model, o3-mini,[3] followed on April 16 by o3 and o4-mini.[4]

  1. ^ Knight, Will (December 20, 2024). "OpenAI Upgrades Its Smartest AI Model With Improved Reasoning Skills". Wired.
  2. ^ Metz, Cade (December 20, 2024). "OpenAI Unveils New A.l. That Can 'Reason' Through Math and Science Problems". The New York Times.
  3. ^ Cite error: The named reference :3 was invoked but never defined (see the help page).
  4. ^ "Introducing OpenAI o3 and o4-mini". openai.com. Retrieved April 16, 2025.

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