OpenAI Claims GPT-5.5 Instant Cuts Hallucinations by Half in High-Stakes Domains
OpenAI's new default ChatGPT model reportedly achieves a 52.5% reduction in hallucinated claims on high-stakes queries, grounded in real user-flagged failure data.
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OpenAI Rolls Out GPT-5.5 Instant With a 52.5% Hallucination Drop and New Memory Transparency Controls
ChatGPT's new default model cuts fabricated claims by more than half on high-stakes prompts and shows users exactly what personal context shaped each response.