OpenAI releases GPT-5.5 Instant update to make ChatGPT smarter with fewer emoji
SMRTR summary
OpenAI has replaced ChatGPT's default model with GPT-5.5 Instant, designed to give smarter, more accurate responses with fewer unnecessary emojis and less wordiness. The update cuts hallucinated claims by 52.5% compared to the previous version, with major accuracy gains in medicine, law, and finance.
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