BREAKING
OpenAI Stages GPT 5.6 Amid Export Order
How the Mythos Order Unfolded
1
Mythos-class launch
↓
2
Commerce directive
↓
3
Models disabled
↓
4
GPT 5.6 staged
Two Models, Two Access Tiers
Claude Fable 5
General
●
Safety guardrails
●
Fallback to Opus 4.8
●
Pulled June 12
Claude Mythos 5
Restricted
●
Guardrails removed
●
Cyber capabilities
●
Pulled June 12
Fable 5 Leads SWE-Bench Pro
Fable 5
80.3
Opus 4.8
69.2
GPT-5.5
58.6
0
$
per M input
0
$
per M output
Frontier AI Meets Trade Policy
AI NEWS BLITZ
OpenAI is limiting its GPT 5.6 rollout as US export rules hit rival models.