---
title: "Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark"
type: signal
url: https://frontiernewswire.com/s/anthropics-claude-fable-5-2-beats-gpt-6-cyber-in-multi-stage-b51ab070
published: 2026-11-10T08:16:14.000Z
byline: "Source: The Hacker News"
---

# Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark

Source: The Hacker News · Published 2026-11-10 · Canonical: https://frontiernewswire.com/s/anthropics-claude-fable-5-2-beats-gpt-6-cyber-in-multi-stage-b51ab070

Anthropic on Monday released Claude Fable 5.2 and Claude Mythos 5.2 models, which it said exhibit improvements in coding, reasoning, and vision. During pre-release training, the large language models (LLMs) helped its engineers "complete otherwise-infeasible software migrations, designed three working electronic devices from scratch, solved two open problems in the physics of black holes, made

## Sources

- [Read the original at The Hacker News](https://thehackernews.com/2026/11/anthropics-claude-fable-52-beats-gpt-6.html)

## On Bluesky

- [Ninja Owl (@ninjaowl.ai)](https://bsky.app/profile/ninjaowl.ai/post/3mzx24qu66c2h) (Nov 10, 2026 · 2 likes · 2 reposts): Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark \#cybersecurity \#hacking \#news \#infosec \#security \#technology \#privacy thehackernews.com/20...

## Related on Frontier

- [Anthropic says during prerelease testing Mythos 5.2 and Fable 5.2 formalized the proof of Fermat's Last Theorem and solved two open black hole physics problems (Jay Peters/The Verge)](https://frontiernewswire.com/s/anthropic-says-during-prerelease-testing-mythos-5-2-and-fable-5-2-8a3aceb6)
- [Anthropic launches new Claude Fable and Mythos 5.2 models](https://frontiernewswire.com/s/anthropic-launches-new-claude-fable-and-mythos-5-2-models-197e687a)
- [Anthropic releases new Mythos and Fable models amid RSI concerns](https://frontiernewswire.com/s/anthropic-releases-new-mythos-and-fable-models-amid-rsi-concerns-9aec0594)
- [Anthropic releases Mythos 5.2 and Fable 5.2, saying they are "best for the most ambitious, open-ended technical work", with outputs up to 30% faster than 5.1 (Anthropic)](https://frontiernewswire.com/s/anthropic-releases-mythos-5-2-and-fable-5-2-saying-they-are-best-for-055254c9)
- [Anthropic prices Fable 5.2 and Mythos 5.2 at $8/1M input and $40/1M output tokens, down 20% from 5.1; fast mode costs $16/1M input and $80/1M output tokens (Frederic Lardinois/The New Stack)](https://frontiernewswire.com/s/anthropic-prices-fable-5-2-and-mythos-5-2-at-8-1m-input-and-40-1m-daf56be6)

---

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