GPT-5.3 Instant reduces hallucinations by 26.8% on web queries and 19.7% on internal knowledge — OpenAI's most-used model now prioritizes accuracy and fewer refusals over raw performance gains.

OpenAI releases GPT-5.3 Instant for ChatGPT with fewer refusals, improved web answers, and reduced hallucinations across major benchmarks.

OpenAI Group PBC today released a lightweight version of its popular agentic coding tool GPT-5.3-Codex, which is designed for more rapid inference, the process by which artificial intelligence models ...

OpenAI has announced its launching GPT-5.2 effective immediately, with access rolling out in phases starting Dec. 11. This is the second major update to GPT-5, the long-awaited OpenAI model that ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...