Last week, OpenAI managed to stop ChatGPT from talking about goblins all the time. This week, there's a whole new model for users to play with. The company announced in a blog post on Tuesday that ChatGPT 5.5 Instant has begun rolling out to all users as the new default model for the popular AI chatbot. The new model is a follow-up to GPT 5.5, which was released in April. GPT-5.5 Instant replaces 5.3 Instant, which will remain available for the next three months for paid users but will otherwise be sunsetted. Unlike Claude Opus 4.7 from Anthropic and GPT-5.5 , which are only available to paid customers, GPT-5.5 Instant is "available to everyone." OpenAI says it should produce fewer hallucinations and better overall results for everyday ChatGPT usage.…