GPT-5.5 Instant update improves conversational quality and context

GPT-5.5 Instant, ChatGPT’s most-used model, has been updated to deliver higher conversational quality, particularly for users making decisions, seeking advice, planning, or shopping.

The model now better identifies user goals, maintains context over multiple turns, and follows complex instructions more accurately.

Improvements also provide more adaptive responses to clarifications or added constraints, while shopping and local business queries benefit from enhanced use of location context and integrated recommendations.