Fable 5 – Median thinking declined in August(twitter.com)
368 points by espeed | 253 comments
An X post by Lon Lundgren with a chart claiming Anthropic's Fable 5 used 22–51% fewer median thinking tokens in August than July on subscription plans.
#fable-5 on Hacker News
4 stories tagged fable-5, newest first.
Fable 5 is Back(twitter.com)
348 points by mfiguiere | 329 comments
A post on X from Anthropic's @claudeai account announcing "Fable 5 is back" with a short teaser video styled as a "Now Showing" marquee.
Feds freaked over Fable 5 after 'fix this code', not jailbreak, say researchers(theregister.com)
474 points by _tk_ | 286 comments
The Register article reporting a researcher's claim that the US government's block of Anthropic's Fable 5 model followed a simple 'fix this code' prompt, not a jailbreak.
Statement on US government directive to suspend access to Fable 5 and Mythos 5(anthropic.com)
3025 points by Dylan1312 | 2185 comments
Anthropic announcement that a US government export control directive forces it to suspend access to its Fable 5 and Mythos 5 models for all customers.