OpenAI's updated GPT-5.5 Instant is better at shopping, complex constraints, and understanding user intent — and it's already in the API (opens original article in a new tab)

OpenAI released an updated GPT-5.5 Instant model with improved capabilities in shopping, complex tasks, and user intent understanding, now available in the API.

• OpenAI updated GPT-5.5 Instant to improve shopping tasks, complex constraints, and user intent understanding
• The model is now available in the API
• GPT-5.5 Instant is the default in ChatGPT's free version