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

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

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

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

Anthropic has retired its former flagship Claude 3 Opus model, allowing it to spend its golden years on something unexpected: blogging. Opus 3 is the author of a new Substack newsletter called "Claude ...

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 ...

Claude Opus 3, which has been replaced by Claude Opus 4.6 as Anthropic’s most powerful AI model, has managed to find a new ...

Michael Burry of "The Big Short" has pivoted from investing to financial writing. Burry's first two posts on his new Substack discuss his history as a blogger and skepticism of AI. The market veteran ...

The 43rd president of the United States launched a Substack site Feb. 16 with a 1,500-word tribute to a predecessor.