June 27, 2026·Bearish·regulatory legal

US Government Gates GPT-5.6 Sol, Restricts Anthropic Models

The US government imposed a limited preview of OpenAI's GPT-5.6 Sol while keeping Anthropic's Mythos and Fable 5 models restricted under export control orders, a new phase of frontier model gating limiting access to advanced AI systems for national security reasons.

Detected & updated continuously · Source: Ruma

Mentioned

Claude Mythos (Mythos)Anthropic (ANTH)

Sources

@AIRewardrop

[ ASK A QUESTION LIVE https://t.co/w6WLB2T0kp ] 💹 FRONTIER MODEL GATING: US government forces limited preview of GPT-5.6 Sol while Anthropic’s Mythos/Fable 5 remain restricted after export control order. OpenAI rolled out GPT-5.6 series (Sol flagship + Terra + Luna) yesterday