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OpenAI announces o3 and o4-mini reasoning models for ChatGPT (updated)

UPDATE: Apr. 16, 2025, 2:18 p.m. 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 ...

OpenAI's GPT-5.2 is here: what enterprises need to know

GPT-5.2 features a massive 400,000-token context window — allowing it to ingest hundreds of documents or large code ...

OpenAI's house of cards seems primed to collapse

OpenAI is in a far less commanding position than it was following the public release of ChatGPT a few short years ago.
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OpenAI launches new, smarter model. Meet o3-pro.

OpenAI has a new reasoning model called o3-pro that the company says is its most intelligent yet. On Tuesday the ChatGPT maker announced o3-pro on X, sharing some details on its improvement over ...

OpenAI says its new GPT 5.2 set a 'new state-of-the-art score' for professional knowledge work

OpenAI says its latest model, GPT 5.2, was shown to outperform industry professionals in specific tasks across 44 different ...

GPT-5.2 is OpenAI’s latest move in the agentic AI battle

GPT-5.2 is here, and with it, OpenAI wants “to unlock even more economic value for people,” Fidji Simo, the company’s CEO of ...

ChatGPT: Everything you need to know about the AI-powered chatbot

A timeline of ChatGPT product updates and releases, starting with the latest, which we’ve been updating throughout the year.