# Anthropic's most capable model stays unreleased, per Fable/Mythos 5.2 system card

> Original title: Anthropic's most capable model remains hidden deep within their tower. Source: Fable/Mythos 5.2 System Card.

- Source: Andrew Curran
- Published: 2026-11-09T23:11:40.000Z
- Bad Influence: https://badinfluence.news/items/z1tmo1mitv92cf8lcpervuue6
- Original: https://x.com/AndrewCurran_/status/2119930955888746627

## Summary

Andrew Curran says Anthropic's most capable model remains kept internal, citing the Fable/Mythos 5.2 System Card. The post gives no benchmark scores, release date, or access details.

## Post

Anthropic's most capable model remains hidden deep within their tower. Source: Fable/Mythos 5.2 System Card.

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHWuB-Fgb0AAgdA0.jpg&mode=thumb&exp=1794528000&sig=2ca4eef89e8af8ba)