OpenAI launches GPT-5.4 across ChatGPT, API, and Codex with stronger reasoning, coding, and computer use capabilities.

While OpenAI is bringing GPT-5.4 to its API and its AI-powered coding tool, Codex, it’s rolling out its reasoning model, GPT-5.4 Thinking, to ChatGPT. OpenAI says GPT-5.4 can wr ...

OpenAI launches GPT-5.4 with Thinking and Pro variants, bringing a 1 million token context window, stronger benchmarks, and fewer AI errors.

OpenAI has launched GPT-5.4, a new version of its artificial intelligence model, in ChatGPT. The company says the model is its “most capable and efficient frontier model for professional work”. The ...

OpenAI has introduced GPT-5.4, a new AI model designed to handle complex professional work such as spreadsheets, documents ...

OpenAI has sent out emails notifying API customers that its chatgpt-4o-latest model will be retired from the developer platform in mid-February 2026,. Access to the model is scheduled to end on ...