Commenters said Altman's lengthy post shows "a nerve was well and truly hit" by Anthropic's advert.

UKRI boss Ian Chapman said it had been told by the government to "focus and do fewer things better".

The event was attended by representatives of more than 50 countries, the White House said.

Concerns were raised by a subcommittee including potential price rises and the future of cinemas.

The social media platform recently announced that it was axing around 15% of its workforce.

Elon Musk's X and Grok platforms are facing increased scrutiny from authorities on both sides of the channel.