OpenAI is updating GPT-5.5 Instant in ChatGPT and the API to improve response style and quality, making it easier to read, more natural in everyday conversations, and better paced in practical help tasks with fewer overly long or bullet-heavy responses
Canvas is being replaced in GPT-5.5 Instant and GPT-5.5 Thinking by writing blocks and code blocks directly in chat, and paid users can keep using canvas for a limited time through legacy models until those models are sunset
We’re also improving memory and personalization.
ChatGPT can now better use context from saved memories, past chats, files, and connected Gmail accounts to give more personalized responses.
Memory sources show what relevant context was used to personalize a response and allow you to update, delete, or disconnect as needed.