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Claude Mythos

Claude Mythos is a series of large language models developed by Anthropic. It is the most powerful series of models in the Claude family. The first model in the series was Claude Mythos Preview. Anthropic did not release the model to the public, citing the model's ability to find software vulnerabilities. Access to Claude Mythos was provided to some…

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Developer
Anthropic
License
Proprietary
Release
April 7, 2026; 4 months ago (2026-04-07)
Stable release
Claude Mythos 5 / June 9, 2026; 2 months ago (2026-06-09)
Type
Large language model · Generative pre-trained transformer

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Overview

History

Specifications and capabilities

Impact

Responses

Advanced semantic analysis

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Map overview Semantic statistics

Claude Mythos

Nodes64
Edges63
Triples47
Avg. degree1.97
Density0.03125
Components1

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Claude Mythos

Top relations

related to Governmental responses · 15
Claude Mythos → Anthropic, Bloomberg, Finance, India's Ministry, Mythos, National Cyber Director, Nirmala Sitharaman, Office, On April, On May, ONCD, Treasury, United States Department, US Representatives, White House
related to Specifications and capabilities · 10
Claude Mythos → According, Claude Mythos Preview, Claude Opus, Codex, Fable, Financial Times, GPT-5, Institute, Mythos, The UK AI Security
related to Leak (March 26 – April 7) · 8
Claude Mythos → According, Anthropic, Axios, Fortune, March, Mythos, Mythos's, The
related to Mythos 5 and Fable 5 (June 9 – present) · 6
Claude Mythos → Anthropic, As, Fable, Mythos, On June, Project Glasswing
Type · 2
Claude Mythos → Generative pre-trained transformer, Large language model
Developer · 1
Claude Mythos → Anthropic
License · 1
Claude Mythos → Proprietary
Release · 1
Claude Mythos → April 7, 2026; 4 months ago (2026-04-07)
Stable release · 1
Claude Mythos → Claude Mythos 5 / June 9, 2026; 2 months ago (2026-06-09)
Website · 1
Claude Mythos → www.anthropic.com/glasswing

Important terminology Word statistics

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Important terminology

mythos anthropic claude model access fable vulnerabilities models april 2026 cybersecurity june preview found security according reported financial release software

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Claude MythosDeveloperAnthropic1.00infobox
Claude MythosLicenseProprietary1.00infobox
Claude MythosReleaseApril 7, 2026; 4 months ago (2026-04-07)1.00infobox
Claude MythosStable releaseClaude Mythos 5 / June 9, 2026; 2 months ago (2026-06-09)1.00infobox
Claude MythosTypeLarge language model1.00infobox
Claude MythosTypeGenerative pre-trained transformer1.00infobox
Claude MythosWebsitewww.anthropic.com/glasswing1.00infobox
Claude Mythosis aseries of large language models developed by Anthropic0.90text
Claude Mythosrelated to Governmental responsesOn April0.60section
Claude Mythosrelated to Governmental responsesBloomberg0.60section
Claude Mythosrelated to Governmental responsesUnited States Department0.60section
Claude Mythosrelated to Governmental responsesTreasury0.60section

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    Min side: 3
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