Claude Mythos goes public in new Fable 5 model that's 'safe for general use'
Claude Mythos goes public in new Fable 5 model that’s ‘safe for general use’ Ben Schoon | Jun 9 2026 - 10:50 am PT | Jun 9 2026 - 10:50 am PT As…
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Top stories
Claude Fable 5 is here — and it's based on a model Anthropic once deemed too risky for the public
1w agoAnthropic's Fable AI brings the capabilities of its unreleased Mythos model to regular users - Engadget
1w agoAnthropic just released public Mythos-class AI model called Claude Fable, details here - 9to5Mac
1w agoAnthropic releases its first Mythos-class model Claude Fable
1w agoAnthropic unveils powerful Mythos AI model, working with Apple in cybersecurity initiative - 9to5Mac
…The goal is for these software organizations to use Mythos to discover and fix security holes before the AI model is released to the world. Claude Mythos has found thousands of flaws…
I don't need Claude, this is the local LLM I run on my NAS that powers my smart home
…Claude, by contrast, is delivered through Anthropic’s managed platform and API, which makes it a cloud service rather than a local NAS model. Related Claude, ChatGPT, and Gemini get all the…
Anthropic says these topics are too dangerous to let its Fable 5 model talk about
Anthropic Tuesday publicly released Claude Fable 5 , its first “Mythos-class” model that it says surpasses its previous frontier Opus models in overall capabilities. But the model’s launch today comes with…
Discussions and forums
Anthropic releases 'safe' version of Claude Mythos AI model to public
Anthropic releases 'safe' version of Claude Mythos AI model to public
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Introducing Claude Fable 5
Introducing Claude Fable 5: a Mythos-class model that we've made safe for general use. Its capabilities exceed those of any model we've ever made generally available. Fable 5 is state of the art on nearly all tested benc…
Claude Fable 5 by Anthropic, releasing tomorrow
Anthropic will be releasing Claude Fable 5 tomorrow. It will be most advanced publicly accessible model, with Mythos-class capabilities and enhanced guardrails. It will most likely require data retention.
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Claude Code vs. Codex
I have been a long time user of Claude Code. I never felt the need to try other coding tools, and the times I did, I always came back. Across many projects, personal and professional, Claude has been my pair programmer. …
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Show HN: RunAPI – one API for AI video, image, music, audio, and LLMs
After building a few SaaS apps, I found that connecting many AI model APIs at the same time gets messy very quickly.So I built RunAPI, which lets you call image, video, music/audio, and LLM models with one API key, and I…
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OpenAI Has a New GPT-5.4-Cyber Model. Here's Why You Can't Use It
OpenAI has a new AI model called GPT 5.4-Cyber, but it's not coming to your ChatGPT . At least not yet. Instead, the company is doing a limited release to…
Mozilla Says Claude Mythos Helped Find 271 Firefox Bugs
Mozilla says its " zero-days are numbered " after identifying 271 security‑sensitive Firefox vulnerabilities using Anthropic's Claude Mythos Preview model. In security terms, a zero‑day is a vulnerability that developers…
Microsoft legal is evaluating Anthropic's Claude Fable over how it saves prompts and output
…Anthropic releases state-of-the-art AI model Claude Fable 5, and it's safe to use Best Deals: Anthropic Claude Fable AI Model Today 7 days ago 30 days ago $7…
Rubber Duck in GitHub Copilot CLI now supports more models - GitHub Changelog
Back to changelog Rubber Duck , the cross-family review agent in GitHub Copilot CLI , is now available using a Claude-powered critic agent when your session is using a GPT model. For…
Claude Sonnet 4 deprecated - GitHub Changelog
…Model Deprecation date Suggested alternative Claude Sonnet 4 2026-05-06 Claude Sonnet 4.6 Please update your workflows and integrations to use supported models. Copilot Enterprise administrators may need to enable…
Anthropic's Cat Wu says that, in the future, AI will anticipate your needs before you know what they are | TechCrunch
…Anthropic released at least six models last year and has already released almost as many this year. Do you expect this pace of development to continue? Our hope is that it continues…