Anthropic caught scientists using Claude to further biological weapon research1h ago Oracle says AI will save it from the SaaSpocalypse, not bring it on1h ago Congress Is Suddenly Waking Up to the AI Doomsday Threat2h ago Don’t ask ChatGPT 'What should I do?' — this simple prompt helps you make better decisions yourself2h ago Extreme Networks’ Agent ONE Coworker moves AI networking from dashboards to answers2h ago Introducing ChatGPT for Financial Services2h ago Tesla unveils driverless Cybercab in Japan for 1st time3h ago The AI safety vibe shift3h ago Sam Altman met with top power utilities about securing the electrical grid. He offered one possible solution: OpenAI's cyber services.3h ago OpenAI Is Open to Slowing Cutting-Edge AI, CEO Sam Altman Tells Staff3h ago Tencent-Backed Chipmaker Enflame Jumps 188% in Shanghai Debut3h ago Salesforce introduces Enterprise AI Harness, AI Control Plane3h ago The Race for the Next Big Weight-Loss Drug Is On—and China Wants In4h ago How Social Media Platforms Are Identifying AI Content4h ago

Anthropic caught scientists using Claude to further biological weapon research1h ago Oracle says AI will save it from the SaaSpocalypse, not bring it on1h ago Congress Is Suddenly Waking Up to the AI Doomsday Threat2h ago Don’t ask ChatGPT 'What should I do?' — this simple prompt helps you make better decisions yourself2h ago Extreme Networks’ Agent ONE Coworker moves AI networking from dashboards to answers2h ago Introducing ChatGPT for Financial Services2h ago Tesla unveils driverless Cybercab in Japan for 1st time3h ago The AI safety vibe shift3h ago Sam Altman met with top power utilities about securing the electrical grid. He offered one possible solution: OpenAI's cyber services.3h ago OpenAI Is Open to Slowing Cutting-Edge AI, CEO Sam Altman Tells Staff3h ago Tencent-Backed Chipmaker Enflame Jumps 188% in Shanghai Debut3h ago Salesforce introduces Enterprise AI Harness, AI Control Plane3h ago The Race for the Next Big Weight-Loss Drug Is On—and China Wants In4h ago How Social Media Platforms Are Identifying AI Content4h ago

AI Research1 min reading time

Quoting Claude Opus 5 system prompt

Simon Willison's WeblogPublished Aug 9, 2026

Anthropic's Claude Fable 5 and Mythos 5 models were briefly suspended in June 2026 due to U.S. export controls, but access was restored after the controls were lifted. Claude's system prompt now includes accurate, neutral information about this event.

#anthropic #claude-fable-5 #claude-mythos-5 #export-controls #large-language-models #u-s-department-of-commerce

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