Twitter/X

Anthropic released a new model called Fable 5, announced on 2026-06-09 by…

Brief

Fable 5 is Anthropic's newly released model, announced 2026-06-09 by @heyshrutimishra on X. The thread presents Fable 5 as Anthropic's most capable AI yet and promises a series of claims explaining why it outperforms competitors, emphasizing the author's view that "nothing else comes close."

Why it matters

Anthropic released a new model called Fable 5, announced on 2026-06-09 by @heyshrutimishra on X/Twitter.

Key details

  • The author claims Fable 5 is Anthropic's most capable AI to date and asserts that "nothing else comes close," framing the post as a thread that will list reasons for that superiority.
Source evidence

BREAKING: Anthropic just released their most capable AI ever.

It's called Fable 5.

Here's why nothing else comes close 🧵