Misconfigurations that allow AI agents to escape can be addressed with better testing and security hardening

Overview Debates Related claims Topics Sources

Slowing down AI helps China win the AI race

Fears of AI's massive disruption to job markets are overblown

Training AI on copyrighted work is fair use

The most powerful AI models should never be open-weight

Art made with generative AI is real art

AI will do more good than harm

Data centers are important for US success

Art made with AI should still be protected by copyright

Slowing down AI development is shortsighted

Schools should teach students to use AI

AI can never be conscious

AI is worth the energy it uses

Companies should be penalized for replacing workers with AI

Claude Fable 5.2 and Claude Mythos 5.2 are built on the same underlying model, but Fable 5.2 includes classifiers that block high-risk cybersecurity and research biology tasks

Anthropic launched Claude Fable 5.2 and Claude Mythos 5.2 on November 9, 2026, targeting coding, reasoning, and AI agent tasks

Anthropic said Claude Fable 5.2 scored 51.4% at Max effort on Zapier's AutomationBench business automation test, behind Gemini 4 Carbon's score of 53.9%

Anthropic restricted access to Claude Mythos 5.2 to vetted organizations through its Cyber Verification Program and Life Sciences Verification Program

Anthropic said during pre-release testing, 1,000 Fable 5.2 agents formalized the proof of Fermat's Last Theorem in Lean in 30 hours, compared to 26% completion in 18 hours by Opus 5.5

Anthropic said Claude Fable 5.2 scored 49.1% at Xhigh effort on the FrontierCode 2.0 agentic coding benchmark, leading GPT-6 Astra at 42.8% and Gemini 4 Carbon at 41.1%

When Fable 5.2 blocks a request due to safety guardrails, requests fall back to Opus 4.8 for cybersecurity and Opus 5 for biology queries