
If you open ChatGPT or Claude, you don’t need to scroll through a model picker to get started. Each has a default experience that their parent company believes represents the future of everyday AI.
OpenAI’s latest default ChatGPT-5.2 model and Anthropic’s Claude Sonnet 4.6 are designed to be fast, helpful and broadly capable, handling everything from quick emails to complex explanations without requiring technical know-how.