The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some tasks) than its predecessors).

Arguably the biggest new feature of GPT-5.4 is that users will be able to interrupt the model mid-respose if it starts going down the wrong rabbit hole. According to OpenAI, when using GPT-5.4 in ...

The company bills API users based on the number of tokens that its LLMs process while generating a prompt response. A token is a unit of data that comprises a few letters or characters. OpenAI says ...

The GPT 5.4 model brings reasoning, coding, and agentic workflows into a single professional-level AI. It's now available ...

The latest model comes with native computer use capabilities, allowing it to take on jobs across your device and applications ...

OpenAI debuted its most capable model yet under pressure from a mass user exodus tied to the company's controversial Pentagon ...

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

When paired with an AI agent system, GPT-5.4 can click a mouse, type keyboard commands, browse the web, and control computer apps.

GPT-5.4 is billed as "our most capable and efficient frontier model for professional work." ...

OpenAI released GPT-5.4 today with native computer use, a 1M-token context window, and new professional benchmarks. Find what's genuinely new.

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

GPT-5.3 Instant reduces hallucinations by 26.8% on web queries and 19.7% on internal knowledge — OpenAI's most-used model now ...