OPENAI
GPT-5.5 Instant is now the default and we’re hoping for less freestyle
OpenAI has started rolling out ChatGPT 5.5 Instant to all users as the new default model for ChatGPT.
The model comes after GPT-5.5, which launched in April.
It replaces GPT-5.3 Instant, though paid users will still be able to use the older model for another three months before it is removed.
Unlike some of OpenAI’s paid models, GPT-5.5 Instant is available to everyone.
OpenAI says it should give better answers, sound more natural, and use helpful context when users have tools like Gmail connected.
In short:
GPT-5.5 Instant is now the default ChatGPT model for all users.
OpenAI says it gives better, shorter, and more accurate answers.
GPT-5.3 Instant will stay available to paid users for three more months.
The goblins were evicted
The company also says the model is more accurate.
In internal tests, GPT-5.5 Instant made 52.5% fewer false claims than GPT-5.3 in areas like law, finance, and medicine.
It also made 37.3% fewer mistakes in difficult chats that users had flagged for factual errors.
OpenAI says the model is also better at knowing when to search the web, reading uploaded images, and giving shorter answers while still sounding conversational.
OpenAI says ChatGPT should now give tighter answers with more personality. So, less essay from a Victorian ghost. Ideally.- MG