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Claude Fable 5 and Claude Mythos 5 (opens in new tab) 187 articles covering this post

anthropic.com··Lobsters, Hacker News, r/ChatGPT, r/GithubCopilot, r/OpenAI, r/artificial, r/singularity·Covers: Assessing Claude Mythos Preview's cybersecurity capabilities, Show HN: A full on end to end Payment System +2 more·Open original

Covered in 187 articles

Anthropic shuts down Claude Fable 5 to comply with US government directive

xda-developers.com·

Claude Fable 5 caught bugs GPT-5.5 and Opus 4.8 missed, then the US government forced it offline

xda-developers.com·

Anthropic just publically released its Mythos-grade AI at no extra cost for a limited time

xda-developers.com·

Claude Fable 5 vs GPT-5.5: Should You Use the New Model for Everything?

blog.kilo.ai··Hacker News

Claude Fable 5 is Live in Kilo

Full Fathom Five: The context of Anthropic’s Mythos-class public release

Anthropic just released public Mythos-class AI model called Claude Fable, details here

Anthropic hands the public Mythos-class AI

therundown.ai·

Anthropic’s too-scary-to-release AI hacking tool is actually coming out — kind of

androidauthority.com·

Anthropic finally releases Mythos to the public, but it's so heavily guarded it barely works

howtogeek.com·

Anthropic launches powerful Fable 5 model publicly, while keeping Mythos restricted over cybersecurity concerns

Anthropic's most powerful model comes with a kill switch aimed at you

boingboing.net·

Anthropic rolls out Claude Fable 5, but it's available for a limited time

bleepingcomputer.com·

Anthropic cuts off Fable 5 and Mythos 5 access following government order

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Anthropic apologizes for invisible Claude Fable guardrails

··Hacker News

Claude Fable is too scared to teach you about the powerhouse of the cell

··Hacker News

Daily Reading List – June 9, 2026 (#801)

The AI They Said Was Too Dangerous — Is Now Inside the NSA

Claude Fable 5 review: I let Anthropic's new "bazooka" loose on my SaaS

Why everyone is talking about loop-engineering and how is it changing agentic ai workflows? Claude Code and Web Scraping examples

Claude Fable 5 on Databricks is a step-change for agentic workflows

Claude Fable 5 can run for days. When does a solo dev actually want that?

Claude Fable 5 and Mythos 5 are here.

Claude Fable 5: What It Is and What It Means for Developers

Anthropic Launches Claude Fable 5, Its First Public Mythos-Class Model

macrumors.com·

Anthropic Launches Claude Fable 5: Mythos-Class AI With Cybersecurity Guardrails

securityweek.com·

Anthropic recruits army to sell Claude to nonprofits

theregister.com·

It blocked us at 'hello!' Anthropic Fable 5 refusing innocuous prompts

theregister.com··Hacker News

Anthropic spins a Fable of a tamer, safer Mythos

theregister.com·

Anthropic Was So Concerned About Its New Mythos-Based Model’s Power That It Lobotomized Its Ability to Improve Itself

Claude Fable 5 brings Mythos to the masses — Anthropic's new frontier model is 'state-of-the-art on nearly all tested benchmarks'

tomshardware.com

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After backlash, Anthropic says its AI will now tell users when their request is being rejected or downgraded for national security concerns

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Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭 (@elder_plinius)

xcancel.com··Hacker News

Ctrl-Alt-Speech: Cupertino d’État

Anthropic’s Mythos Safeguards Stoke Fears of a ‘Permanent Underclass’

Anthropic brings Mythos to the masses with Claude Fable 5, its most powerful generally available model ever

venturebeat.com·

Haiku, Sonnet, Opus, Mythos, Fable . I’m not a fan of Anthropic’s business bu...

Designing Loops - A Practitioner's Short Field Guide

interestingengineering.substack.com··Substack

Anthropic's Fable AI brings the capabilities of its unreleased Mythos model to regular users

Agentic coding and mental models

philbooth.me··Hacker News

Claude Fable 5 🚀, Gemini 3.5 Live Translate 📱, scaling test time compute 📈

Linux Kernel 0-Day 🐧, Hades PyPI Worm 🐍, Anthropic Fable 5 🪄

Initial impressions of Claude Fable 5

simonwillison.net··Hacker News

[AINews] Anthropic Claude Fable 5 — Mythos but Safe, with Controversial Terms

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Anthropic says these topics are too dangerous to let its Fable 5 model talk about

arstechnica.com·

Thoughts on Claude Fable's silent safeguards

lesswrong.com·

MythOS - The Rise of AGI

lesswrong.com·

Three Labs With a Plan and A Memorandum

lesswrong.com·

Fable 5 vs Opus 4.8: The real stakes, not the spec sheet

thenewstack.io·

Anthropic launches Claude Mythos/Fable 5, but you better try it soon

thenewstack.io·

Anthropic Releases Claude Fable 5, Its Most Powerful AI Yet, With Cyber Safeguards

thehackernews.com·

Introducing Claude Fable 5

Anthropic’s Claude Fable 5 is out for public use, with safeguards for high-risk requests

helpnetsecurity.com·

Anthropic's Fable a cautionary tale

Anthropic suspends new AI models after government directive

Claude Mythos goes public in new Fable 5 model that’s ‘safe for general use’

9to5google.com·

Gaslighting Openness

lucumr.pocoo.org··Hacker News

Mythos found the bugs. Who pays for the fixes?

opub.dev··Hacker News

I Tested Claude Fable 5: Can Anthropic’s Newest AI Deliver on the Hype?

analyticsvidhya.com·

☕🤖 Meet Claude Fable 5: The New Model Topping Every Benchmark

theaibreak.substack.com··Substack

The next AI safety fight may actually be about DNA

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Anthropic Claude Fable 5 on AWS: Mythos-class capabilities with built-in safeguards now available

aws.amazon.com·

Daily Hacker News for 2026-06-09

daemonology.net·

Anthropic launches Claude Fable 5 with advanced cybersecurity safeguards

The AI Glass Ceiling

tomtunguz.com·

Three Labs With a Plan and A Memorandum

thezvi.substack.com··Substack

Anthropic releases state-of-the-art AI model Claude Fable 5, and it's safe to use

tweaktown.com·

Claude Fable 5 Is Here, But You Probably Won’t Need It

phandroid.com·

Three Labs With a Plan and A Memorandum

thezvi.wordpress.com·

Anthropic Releases Claude Fable 5 to Pro, Max, and Enterprise Users Free Until June 22

Anthropic releases Claude Fable 5, Mythos 5

Anthropic launches Claude Fable 5, a state-of-the-art AI model that beats OpenAI's GPT-5.5

llmdevsilo: Using LLMs to develop code securely

Apple's 'surprising' T&S move, another teen ban and 63,000 kids target the Kremlin

everythinginmoderation.co·

Ai News Recap: June 12, 2026

neuralbuddies.com·

Claude Fable 5 and new AI safety fables

interconnects.ai··Hacker News

😸 Claude Fable Five is Anthropic's Most Controversial Model Yet

theneurondaily.com·

Anthropic releases Mythos-derived model with cyber guardrails

metacurity.com·

Anthropic launches Claude Fable 5 with Mythos safeguards

kite.kagi.com·

Anthropic releases public Claude Fable 5 with safeguards

kite.kagi.com·

Anthropic Launches Claude Fable 5, Its First Public Mythos-Class AI Model

macobserver.com·

Claude Fable 5: Available on Google Cloud

cloud.google.com·

Fable 5.

substack.news-items.com

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Anthropic’s 30-Day Data Policy Exposes Enterprise AI Governance Gaps

Microsoft Balks at Anthropic’s Claude Fable 5 Data Retention Policy

Anthropic Launches Mythos-Class Models After Developing Safeguards

What is Claude Mythos? And how to see it in action with Claude Fable 5

Not Your Weights, Not Your Workflow (Claude Fable 5 Export Ban)

thecoder.io··Hacker News

AWS Destroyed the Value Proposition for Bedrock

securosis.com·

Blog post https://www.anthropic.com/news/claude-fable-5-mythos-5

twitter.macworks.dev

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Anthropic sets AI performance records with new Mythos 5, Fable 5 frontier models

siliconangle.com·

Weekly Firgun Newsletter – June 12 2026 | pre-seed funding

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DEW #159 - Synthetic Logs for Detection, Device Code Phishing Detection & Mythos 5 release

detectionengineering.net·

Anthropic's Self Governance Is an Act of Social Violence

cezarbabin.com··Hacker News

Anthropic launches Claude Fable 5 with new safeguards

How Fable 5 And Mythos 5 Change AI Security, Data Retention, And Vendor Risk

forrester.com·

Visible Boundaries Earn Trust | Vigil Harbor

blog.vigilharbor.com··Hacker News

Hey Siri, Call Google

demaree.me··Hacker News

Mythos-class models will diffuse throughout the world by 2029

spateder.com··Hacker News

Skimming an AI answer cost me 100 passwords

alwaysdraft.com··Hacker News

WWDC 2026: Between Seasons

macstories.net·

Anthropic releases Mythos-class Fable 5 model with safeguards for cyber risks

csoonline.com·

Setting a custom price for a model in AgentsView

til.simonwillison.net·

Today, we're introducing Claude Fable 5 and Mythos 5, two configurations of our next major language model.

threadreaderapp.com·

Nine Things About Claude Mythos 5 That Matter If You’re Not an Enterprise Customer

thealgorithmicbridge.com·

After backlash, Anthropic says its AI will now tell users when their request is being rejected or downgraded for national security concerns

finance.yahoo.com·

#072 - Washington kills Claude Fable 5 and Mythos 5, builders flee to local agents at $0

indiehacker.news·

HN AI Highlights – weekly digest of the best AI posts

hn-ai-newsletter.beehiiv.com··Hacker News

AIs Are Getting Increasingly Dangerous

controlai.news·

Anthropic has caught up to OpenAI in image understanding

understandingai.org

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Claude Fable 5 Free Through June 22 on Pro, Max, Team, and Enterprise Plans

claude5.ai··Hacker News

Wednesday 10 June — Claude Code 2.1.170

#069 - Anthropic's Fable 5 can silently get dumber, Apple's container ships Docker-killer Linux VMs

indiehacker.news·

Anthropic Releases Claude Fable, a 'Safe' Version of Mythos

Claude Fable 5 and Mythos 5 pricing: Anthropic's new $10/$50 top tier

aipricing.guru··Hacker News

New Fable 5 Is a "Mythos-Class" LLM Available to All, Anthropic Announces

infosecurity-magazine.com·

We have ways of making you pay

betterthangood.xyz·

Claude Fable 5: Anthropic Releases Public Version Of High-Risk AI

ubergizmo.com·

Memia #2026.23: el nino inbound🌡 fable 5🤯 hey, siri (gemini)🍎♊ non-human corporation🤖🇦🇷 recursive self-improvement📈⏸️ tax heavens💸🪐 majorana 2⚛️🤔 tokenomics🪙📊 humanbot🧠 supa supabase🦄

memia.substack.com··Substack

How to help knowledge workers who lose their jobs to AI

platformer.news·

Do You Even Need Claude Fable 5?

Two weeks with Claude Fable 5

claudecodecamp.com·

Anthropic releases Mythos-class Fable 5 with safeguards for cyber risks

Anthropic’s Mythos goes public—on a short leash

Are Mythos’ cyber capabilities overhyped?

epochai.substack.com··Substack

Claude Fable 5: Mythos-grade hype, record cheating, and a few hall-of-fame entries | Blog

endorlabs.com··r/netsec

AI Security and Safety: A Wake-Up Call to Marketers

ipullrank.com·

Anthropic Rolls Out Claude Mythos 5 AI Model—Along With the Safer Fable 5 for the Public

Deep Learning Weekly: Issue 459

deeplearningweekly.com·

Anthropic Mythos Security Audit Found No ‘Serious’ Bugs in Zcash: Wilcox

cointelegraph.com·

Crypto users wary as Anthropic releases Claude Mythos with safeguards

cointelegraph.com·

New Claude model - Fable

bensbites.com·

AI to ROI News & Analysis: June 12, 2026

ai2roi.substack.com··Substack

Claude Fable 5 available today in Microsoft Foundry: Powering the next era of autonomous agents

azure.microsoft.com·

Anthropic rolls out ‘Mythos-like’ AI model Claude Fable 5

siliconrepublic.com·

xAI's Compute Pivot, Robot Soldiers, & Claude's Limits

briefing.forwardfuture.ai·

What Do You Need to Know About Claude Fable 5?

Srsly Risky Biz: Europe Wants To Wean Itself Off US Tech

news.risky.biz·

Risky Bulletin: Meta says NSO violated court order with new campaign targeting WhatsApp

news.risky.biz·

Anthropic releases Claude Fable 5, a locked-down, safer version of Mythos

sherwood.news·

Claude Fable 5 from Anthropic now available on AWS

aboutamazon.com·

[Dev Weekly #115] Claude Fable 5 Outperforms GPT-5.5 | AI-Generated Code Needs Four Validation Gates | React Compiler Goes 10x Faster in Rust - The Miners

blog.codeminer42.com·

I've Joined OpenAI, fwd:cloudsec, AWS Well Architected Supply Chain Security

Claude Fable 5 review: what the new Mythos model gets right (and very wrong)

lennysnewsletter.com·

Intelligent Machines 874: Google Knows I Love the Pepper Cannon

Anthropic suspends access to latest AI models following US order

Anthropic suspends access to Fable 5 and Mythos 5 AI models following U.S. government directive

shacknews.com·

Anthropic shares timelapse video of Claude Fable 5 AI vision model beating Pokemon FireRed

shacknews.com·

In other languages

역대 최강 모델이 포켓몬을 비전만으로 깼다 — Fable 5 가격·성능 정리

Claude Fable 5 and Mythos 5 [Linkpost]

lesswrong.com·

Kommentar: Die beste Werbung für alternative KI-Hersteller

Fable 5 blockiert auch sicheren Code

Anthropic veröffentlicht Claude Mythos 5 als Fable 5 mit Einschränkungen

Claude Fable 5 är första Mythos-modellen för allmänheten

sweclockers.com·

Anthropic pod presją Waszyngtonu. Władze USA kazały odciąć dostęp do nowych modeli

android.com.pl·

Maulkorb statt Cyberwaffe: Neues KI-Modell Claude Fable 5 ist da

Anthropic heeft toegang tot nieuwe AI-modellen uitgeschakeld, na exportbeperking door VS

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SpaceX-Börsengang: Apple stolpert hinterher. Anthropic prescht vor

No es bueno que los campesinos tengan ballestas

Anthropic livre Claude Fable 5, une version bridée de Mythos

lemondeinformatique.fr·

GPT-5.5に29点差。政府限定だった『Mythos』が Claude Fable 5 として解禁【独自検証】｜AGIラボ

chatgpt-lab.com·

Mythos-KI von Anthropic: Anthropic veröffentlicht Variante von KI-Modell Mythos

Anthropic 發佈 Claude Fable 5 首款 Mythos 級 AI 模型

hk.news.yahoo.com·

LLM Benchmark: Fable 5 e a novela da Anthropic

akitaonrails.com·

« Nous avons fait le mauvais choix » : Anthropic a discrètement saboté Fable 5 et fait des victimes collatérales

Pris en flagrant délit, Anthropic avoue avoir secrètement dégradé les performances de son IA surpuissante Fable 5

Claude Fable 5 : et si les restrictions de Mythos n’avaient finalement rien à voir avec la sécurité ?

Anthropic lança IA de nível Mythos, mas com salvaguardas

cisoadvisor.com.br·

Claude Fable 5 : Anthropic libère sa première IA de niveau Mythos, et évoque un modèle mystérieux

Mythos-Modell Claude Fable 5: Anthropic veröffentlicht bisher mächtigstes KI-Tool

Anthropic habilitó la IA más avanzada en ciberseguridad y código, pero le tiene tanto miedo que no te deja usarla a pleno rendimiento

xataka.com.mx·

Claude Fable 5 のゲーム制作能力は、今までのモデルより頭一つ抜けて優れているかも

aba.hatenablog.com·

Claude Fable 5 : le modèle "Mythos" qu'Anthropic jugeait trop dangereux est maintenant entre vos mains

lesnumeriques.com·

Anthropic met entre toutes les mains un modèle qu'elle jugeait trop dangereux à publier il y a deux mois

Estados Unidos pulsa el botón del miedo con Claude Mythos y Fable 5. Es un apagón con un claro beneficiado: China

Claude Fable 5 es el modelo de IA público más potente de la historia. También el más caro, exclusivo y frustrante

Anthropic lanserar Claude Fable 5 – Mythos för vanligt folk

computersweden.se·

Mythos 5 nur für ausgewählte Partner: Anthropics Fable 5 ist zu mächtig ohne Ketten

computerbase.de·

Anthropic、「Mythos 5」を限定提供。一般向けには制限付き「Fable 5」

Claude Fable 5: Anthropics mächtigstes Modell ist jetzt öffentlich, aber mit Bedingungen

stadt-bremerhaven.de·

2026 06 10 HackerNews

supertechfans.com·

Claude Fable 5: 코딩 작업에서 중간 수준 결과

Anthropic, Fable 5, Claude Code и большой отбор игрушек

Я попросила Claude Fable 5 сделать игру одним промптом. Получился симулятор админа ИИ-канала

Anthropic представила Claude Fable 5 и закрытую Mythos 5

Выпущен бенчмарк FrontierCode для оценки ИИ-моделей по «качеству пулл-реквестов»

Anthropic выпустили Fable 5 (модель уровня Mythos) для всех