OpenAI releases GPT-5.3 Instant: smoother and more practical for everyday conversation
GPT-5.3 Instant: Smoother, more useful everyday conversations
AI summary
OpenAI releases an update to its commonly used ChatGPT model, GPT-5.3 Instant, reducing unnecessary refusals and preachy preambles and improving the quality of answers from web retrieval. Internal evaluations show that hallucination rates in high-risk domains such as medicine, law, and finance decreased by 26.8% (with web browsing) and 19.7% (with internal knowledge only) compared with the previous generation. It is now available to all ChatGPT users, with the API name gpt-5.3-chat-latest.