X changes its terms to bar training of AI models using its content

Social network X has changed its developer agreement to prevent third parties from using the platform’s content to train large language models.

In an update on Wednesday, the company added a line under “Reverse Engineering and other Restrictions,” a subsection of restrictions on use: “You shall not and you shall not attempt to (or allow others to) […] use the X API or X Content to fine-tune or train a foundation or frontier model,” it reads.

This change comes after Elon Musk’s AI company xAI acquired X in March — understandably, xAI wouldn’t want to give its competitors free access to the social platform’s data without a sale agreement.

In 2023, X changed its privacy policy to use public data on its site to train AI models. Last October, it made further changes to allow third parties to train their models.