OpenAI Rolls Out GPT-5.3 Instant to ChatGPT
GPT-5.3 Instant
- Release Date
- 2026-03-03
- Availability
- All ChatGPT users; API as gpt-5.3-chat-latest
- Predecessor
- GPT-5.2 Instant (available until 2026-06-03)
OpenAI has begun rolling out GPT-5.3 Instant to all ChatGPT users and API developers as gpt-5.3-chat-latest. The model offers improved accuracy, fewer refusals and hallucinations, better web search results, and enhanced writing assistance. GPT-5.2 Instant will remain available to paid users until its retirement on June 3, 2026.