# Anthropic releases Claude Fable 5.2 and Mythos 5.2 as IPO nears

> Original title: Anthropic releases first frontier models since Amodei's call for slowdown as IPO buzz builds

- Source: CNBC · Technology
- Published: 2026-11-09T19:00:01.000Z
- Bad Influence: https://badinfluence.news/items/pb3t1g3qaa6bj3et4djbdkvoy
- Original: https://www.cnbc.com/2026/11/09/anthropic-claude-fable-5-2-mythos-5-2.html

## Summary

Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, which it says generate outputs 30% faster than their predecessors at 20% lower cost, at $8 per million input tokens and $40 per million output tokens. Fable 5.2 is generally available, while Mythos 5.2 is limited to vetted organizations through Anthropic's Life Sciences and Cyber Verification Programs.