#medicine

OpenAI has replaced GPT-5.3 Instant with a new foundation model, GPT-5.5 Instant, as the default engine powering ChatGPT. The company said the updated model significantly reduces hallucinations in high-stakes domains including law, medicine, and finance, while preserving the low-latency performance of its predecessor. Benchmark results show meaningful gains, with the new model scoring 81.2 on […]

OpenAI's newest default model for ChatGPT might not make stuff up as much. Hallucinations have been an ongoing problem for AI models, but OpenAI says its new GPT-5.5 Instant model has "significant improvements in factuality across the board." The company claims that, based on "internal evaluations," GPT-5.5 Instant produced "52.5% fewer hallucinated claims" than its Instant model for GPT-5.3 "on high-stakes prompts covering areas like medicine, law, and finance." GPT-5.5 Instant also "reduced inaccurate claims by 37.3% on especially challenging conversations users had flagged for factual errors." OpenAI also claims that GPT-5.5 Instant is … Read the full story at The Verge.