BREAKING
Anthropic Disables Fable 5, Mythos 5
How the Shutdown Unfolded
1
Launched Jun 9
↓
2
US directive
↓
3
Disabled Jun 12
Fable 5 Benchmark Lead
Fable 5
80.3
Opus 4.8
69.2
GPT-5.5
58.6
0
$
per M input
0
$
per M output
0
M
context tokens
Security Concern vs Pushback
US Concern
Directive
●
Cyber capabilities flagged
●
Jailbreak warning raised
Anthropic
Response
●
Narrow, non-universal flaw
●
Calls it a misunderstanding
Export Rules May Spread
AI NEWS BLITZ
Anthropic has cut off two flagship Claude models for every customer.