Lossless·Toolkit

O-Series Models

One of the well-known Models by OpenAI using Chain of Thought techniques.

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One of the well-known Models by OpenAI using Chain of Thought techniques.

"We are introducing OpenAI o1, a new large language model trained with reinforcement learning to perform complex reasoning. o1 thinks before it answers—it can produce a long internal chain of thought before responding to the user." [^e2e35a] ![](https://i.imgur.com/ueZ058L.png)

o1

o3

2025, Feb 01. I just tried o3 mini The Prime Time, YouTube

https://youtu.be/PoeFxGzPpXE?si=en_bfy--cHZLODu-

https://youtu.be/CqpDXeMIY1Q?si=tvD2FBtNlOZNpfqI

https://youtu.be/zRPBovmV8F8?si=txOrsdT89Iv3kzbP

https://youtu.be/j0Qz2pFScsk?si=dYcVvctwpLjhy8jf

https://youtu.be/GbnglT5XkNQ?si=Lx2_VGSfDihUmi55

Footnotes


[^e2e35a]: 2024, Sep 12. [Learning to reason with LLMs](# Learning to reason with LLMs). OpenAI Blog.