OpenAI teases “5.4” as reports point to a 1M+ token context window and “extreme reasoning,” amid scrutiny over its Pentagon deal.
OpenAI launches GPT-5.4, calling it its most capable and efficient AI model yet, with AI agents, computer control, improved reasoning, and a 1M-token context.
GPT-5.4 expands the context window to 1 million tokens; the larger limit supports longer coding and research sessions.
Ever wondered what the average salary is for workers of your age? We’ve used government research from the Office for National Statistics (ONS), alongside data from other sources, to answer this ...