Reddit sued the artificial intelligence startup Anthropic on Wednesday, accusing it of stealing data from the social media discussion website to train its AI models despite publicly assuring it wouldn’t.

The complaint filed in San Francisco Superior Court is the latest battle over AI companies’ alleged unauthorized use of third-party content. Anthropic’s backers include Amazon.com and Google parent Alphabet.

“We disagree with Reddit’s claims and will defend ourselves vigorously,” an Anthropic spokesperson said.

Anthropic Resists Licensing Agreement Despite Training on Reddit Content

According to the complaint, Anthropic has resisted entering a licensing agreement even as it trained its Claude chatbot on Reddit content, despite assuring last July it had blocked its bots from accessing R

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