* This is a partial quote from the official blog.
GPT‑5.3 Instant: More Natural and Useful Everyday Conversations
https://openai.com/ko-KR/index/gpt-5-3-instant/
We've updated the most widely used model in ChatGPT to be more helpful and make conversations flow more naturally in everyday life. GPT‑5.3 Instant now provides more accurate answers and presents results that faithfully reflect context when searching the web. It also reduces unnecessary pauses that disrupt conversation flow and softens overly defensive explanations and overly assertive statements.
This update focused on elements users experience daily: tone of voice, relevance of responses, and conversational flow. These are important factors that influence the ChatGPT user experience and satisfaction, even though they may not always be apparent in benchmarks. User feedback was directly incorporated into the GPT‑5.3 Instant update for these elements. ……
GPT‑5.3 Instant is available to all users on ChatGPT starting today, and can also be accessed through the API as 'gpt-5.3-chat-latest'. Thinking and Pro updates will be announced at a later date. GPT‑5.2 Instant will continue to be available for paid users through the legacy model dropdown menu for three months, with support ending on June 3, 2026.
[The rest of the content is omitted]
* There is also a mention of GPT-5.4 on Twitter.
https://x.com/OpenAI/status/2028909019977703752
