Everything to know about Open AI's viral chat bot ChatGPT.

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• Open AI, the AI company behind the AI art generator DALL·E, released the viral bot ChatGPT.

• The bot, which drew more than 1 million users soon after its launch, is attracting more investors to generative AI.

• If you haven't followed the GPT craze, here's how it works and which experiments are using it to replace humans.