AI & LLMs

OpenAI GPT-5.3 Instant: Fewer Refusals, Better Web Answers, and a Smoother ChatGPT

OpenAI releases GPT-5.3 Instant with 26.8% fewer hallucinations, reduced unnecessary refusals, better web-sourced answers, and a smoother conversational tone. Full breakdown of what changed, why it matters, and what developers need to know.