A new chatbot which generates convincing human-like answers in response to users' prompts has passed one million users in less than a week, the project behind it has said.

ChatGPT was publicly released by OpenAI, an artificial intelligence research firm whose founders included Elon Musk.

But the company has warned it can produce problematic answers and exhibit biased behaviour.

Open AI said it's "eager to collect user feedback to aid our ongoing work to improve this system".

This film is from Click – the BBC’s weekly technology show.

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