GPT-5.1: A Smarter, More Natural-Conversation Upgrade to ChatGPT
ChatGPT is becoming faster and more conversational as OpenAI upgrades its flagship GPT-5 model to GPT-5.1. OpenAI announced two additions to the GPT-5 family: GPT-5.1 Instant and GPT-5.1 Thinking. Both models are now available in ChatGPT. GPT-5.1 Instant, essentially the default and most frequently used model, is now “warmer, smarter, and better at following your … Read more