🧰 Claude Fable 5

The items that name it 14

• Anthropic says AI distillation attack defenses cut Claude extraction by 90% to 99%
  articleas affected products2026-10-13
• Strengthening our defenses against distillation attacks
  articleas classification.key entities2026-10-13
• Strengthening our defenses against distillation attacks
  articleas affected products2026-10-12
• 2026 in LLMs (so far)
  talkas classification.technologies2026-09-27
• Rumour Is the Exploit — AI agents collapse time-to-exploit to near-zero
  articleas classification.technologies2026-08-22
• What is an agent harness? The software that turns a model into an agent | Blog | Endor Labs
  articleas affected products2026-08-15
• Solidus: Formally Verifying a Compiler Using Automated Research
  articleas tools2026-07-24

  LLM used for some of the final steps of building Solidus

• How AI guardrails are impeding the work of offensive cybersecurity researchers | TechCrunch
  articleas classification.technologies2026-07-24
• Endor Labs: Claude Fable 5
  writeupas affected products2026-06-18It is written here as Claude Fable 5 (Anthropic model).

  Anthropic model

• When a Government Pulls an AI Model: What the Fable 5 and Mythos 5 Suspension Means for Security Teams
  articleas affected products2026-06-14

  AI model suspended globally on June 12, 2026 by Anthropic in compliance with a US government export-control directive targeting foreign-national access; reported trigger was a 'narrow, non-universal jailbreak' consisting of asking the model to read a specific codebase and fix software flaws

• Full Fathom Five: The context of Anthropic’s Mythos-class public release
  articleas affected products2026-06-13It is written here as Claude Fable 5 (Anthropic; routes cybersecurity prompts and discussions to an Opus 4.8 model; also routes bioweapon queries to a lesser model).

  Anthropic; routes cybersecurity prompts and discussions to an Opus 4.8 model; also routes bioweapon queries to a lesser model

• Endor Labs: AI AppSec Agents Cost 12x More Without Pre-Computed Security Context
  articleas affected products2026-06-11

  Anthropic model; priced at $10 per million input tokens and $50 per million output tokens, double the previous generation

• Endor Labs: Claude Fable 5
  writeupas affected products2026-06-11

  Anthropic's generally available, safeguarded Mythos-class model released the Tuesday before this report; benchmarked on 200 vulnerability-fixing tasks

• Google, Anthropic, and OpenAI Unveil Cyber AI Models, Safeguards, and Access Programs
  articleas classification.technologies

In every workspace you can read 37