OpenAI will make GPT-5.5 Instant the default model for all ChatGPT users within the next two days and will make it available in the API as 'gpt-5.5-chat-latest'; additionally, personalization improvements are coming for Plus and Pro web users, and memory sources will be available on all consumer plans on the web, with mobile availability coming soon. This provides faster access and greater customizability for applications.
OpenAI makes the GPT-5.5 Instant model the default; personalization and memory features expand
OpenAI will make GPT-5.5 Instant the default model for all ChatGPT users within the next two days and will make it available in the API as 'gpt-5.5-chat-latest'; additionally, personalization improvements are coming for Plus and Pro web users, and memory sources will be available on all consumer plans on the web, with mobile availability coming soon.
