OpenAI makes GPT-5.5 Instant the default model of ChatGPT
OpenAI makes GPT-5.5 Instant the default ChatGPT engine, cutting hallucinations by 52.5% and boosting scientific reasoning on GPQA from 78.5% to 85.6%.
OpenAI makes GPT-5.5 Instant the default ChatGPT engine, cutting hallucinations by 52.5% and boosting scientific reasoning on GPQA from 78.5% to 85.6%.