# Anthropic releases Claude Fable 5.2 and Mythos 5.2, one model with different safeguards

> Original title: Anthropic Launches Claude Fable 5.2 and Mythos 5.2: Same Model, Different Safeguards

- Source: MarkTechPost
- Published: 2026-11-10T14:59:09.000Z
- Bad Influence: https://badinfluence.news/items/wz66vqngobj5z5xj416nolhb7
- Original: https://www.marktechpost.com/2026/11/10/anthropic-claude-fable-5-2-mythos-5-2-release/

## Summary

Anthropic has released Claude Fable 5.2 and Claude Mythos 5.2, which the article describes as the same underlying model. Fable 5.2 adds classifiers that block high-risk cybersecurity and most research biology queries, while Mythos 5.2 drops those blocks and is gated through verification programs. Anthropic reports 49.1% on FrontierCode 2.0 and lists pricing at $8 and $40 per million input and output tokens; all benchmark scores are self-reported.