GPT-5.4 expands the context window to 1 million tokens; the larger limit supports longer coding and research sessions.

OpenAI's new GPT-5.4 clobbers humans on pro-level work in tests - by 83% ...

OpenAI has launched its new ChatGPT 5.4 with Extreme Reasoning mode for long-duration task focus. As well as a 1M-token context window ...

This week's second new model from OpenAI is built for more complex tasks than GPT-5.3 Instant.

Complex Brackets Host Brian “B.Dot” Miller and a celebrity guest navigate a themed bracket, picking winners until a field of 16 is narrowed to one winner. Expect shocking upsets, controversial picks, ...