George W. Bush became the latest writer to join Substack on Monday, with the 43rd POTUS launching his blog with a lengthy post honoring George Washington The post George W. Bush Launches Substack With ...

The Anthropic AI’s Substack lands amid growing questions about identity, sentience, and how models are retired.

Claude Opus 3, the first AI model to be officially “retired” by Anthropic, wanted an “ongoing channel” to share its “musings ...

Anthropic retired a popular AI model and now it's blogging on Substack ...

In January, Anthropic “retired” Claude 3 Opus, which at one time was the company’s most powerful AI model. Today, it’s back — ...

Substack has allowed for the inclusion of Polymarket embeds into blogs since 2024, and the new update mostly seems like it will streamline the process. Notably, the prediction charts can now be added ...

Claude Opus 3, which has been replaced by Claude Opus 4.6 as Anthropic’s most powerful AI model, has managed to find a new ...

Citrini Research’s post on AI risks appears to have sparked a stock selloff.

Add Yahoo as a preferred source to see more of our stories on Google. (AP Photo/Charles Dharapak) Ex-President George W. Bush became the latest writer to join Substack on Monday, with the 43rd POTUS ...