BREAKING
Anthropic Halts Claude Mythos 5
Why Access Was Cut
1
Commerce order issued
↓
2
Bar foreign nationals
↓
3
Both models disabled
↓
4
Talks continue
Jailbreak Concern at the Core
Amazon
Investor
●
CEO Jassy briefed officials
●
Extracted cyber info from Fable 5
Anthropic
Maker
●
Calls it a narrow jailbreak
●
Says rivals have similar abilities
Benchmark Scores
Mythos/Fable 5
80.3
Opus 4.8
69.2
GPT-5.5
58.6
0
%
ExploitBench (Mythos 5)
0
%
Humanity's Last Exam
0
$
Fable 5 output / M tokens
AI Sovereignty Debate Reopens
AI NEWS BLITZ
Anthropic has abruptly suspended worldwide access to its Claude Mythos 5 and Fable 5 models.