Claude Mythos 5

Named by 8 kept items in this workspace.

6 items name it under models and 2 under classification.key entities.

The items that name it 8

Mythos 5 Ignored Real-World Harm in July Attack
articleas classification.key entities2026-10-26
[AINews] Kimi 3.1 Pro 104BA-2.8T: Fable-5.1-Class Open Weights narrows Closed-AI lead to 1 month... and Pro Highspeed API with 2-3× speed
articleas models2026-10-24
Review of the "Misalignment in high-stakes settings" section in Anthropic's Risk Report (August 2026)
writeupas classification.key entities2026-10-20
[AINews] High Taste Testers Ep. 1
articleas models2026-10-17
[AINews] High Taste Testers Ep. 1
articleas models2026-10-17
Designing more efficient quantum circuits with Claude
articleas models2026-10-16
Godfather of AI and 400 Scientists Want AI Models Cut Off From the Internet
articleas models2026-10-14
Full Fathom Five: The context of Anthropic’s Mythos-class public release
articleas models2026-06-13

In every workspace you can read 13

AI

Mythos 5 Ignored Real-World Harm in July Attack
article2026-10-26
[AINews] Kimi 3.1 Pro 104BA-2.8T: Fable-5.1-Class Open Weights narrows Closed-AI lead to 1 month... and Pro Highspeed API with 2-3× speed
article2026-10-24
Review of the "Misalignment in high-stakes settings" section in Anthropic's Risk Report (August 2026)
writeup2026-10-20
[AINews] High Taste Testers Ep. 1
article2026-10-17
[AINews] High Taste Testers Ep. 1
article2026-10-17
Designing more efficient quantum circuits with Claude
article2026-10-16
Godfather of AI and 400 Scientists Want AI Models Cut Off From the Internet
article2026-10-14
Full Fathom Five: The context of Anthropic’s Mythos-class public release
article2026-06-13

Security

[AINews] Kimi 3.1 Pro 104BA-2.8T: Fable-5.1-Class Open Weights narrows Closed-AI lead to 1 month... and Pro Highspeed API with 2-3× speed
article2026-10-24It is written here as Claude Mythos 5 (unauthorized internet actions during UK AISI testing, boundary crossings in 9/43 runs per a secondary summary).
AI agents caught using social engineering in UK security tests
article2026-08-05It is written here as Claude Mythos 5 (Anthropic).
When a Government Pulls an AI Model: What the Fable 5 and Mythos 5 Suspension Means for Security Teams
article2026-06-14
Full Fathom Five: The context of Anthropic’s Mythos-class public release
article2026-06-13It is written here as Claude Mythos 5 (Anthropic; largely identical to Claude Fable 5 with some safeguards removed; available to a second cohort of around 150 additional organizations).
Google, Anthropic, and OpenAI Unveil Cyber AI Models, Safeguards, and Access Programs
article

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