New Delhi, Oct. 28 -- OpenAI estimates that around 0.15 per cent of ChatGPT's weekly users discuss suicidal thoughts or plans, according to a latest blog post published on Monday. It is a small fraction, but significant given the platform's massive global reach.

The company says the new GPT-5 model, which powers ChatGPT by default, reduces unsafe or non-compliant responses in mental-health-related chats by as much as 80 per cent, and performs substantially better when users show signs of psychosis, mania, or emotional over-reliance on the chatbot.

The update comes after months of work with psychiatrists and psychologists in OpenAI's Global Physician Network, a group of nearly 300 clinicians across 60 countries. More than 170 of them dir...