Breaking2 min read
OpenAI Releases GPT-5.4 With 1-Million-Token Context and 33% Fewer Hallucinations
OpenAI has launched GPT-5.4, its latest flagship model upgrade, featuring a one-million-token context window — enough to process entire codebases or book-length documents in a single pass — while cutting factual errors by 33% compared to GPT-5.2. API pricing starts at $2.50 per million input tokens. The release comes days after the #QuitGPT movement drove 2.5 million users to competitors following OpenAI's Pentagon deal; the company appears to be responding with an aggressive product push to win them back.