







Anthropic released Claude Mythos Preview last month with claims it's "a particularly big jump" — capable of breaking into "almost any computer on Earth." Limited release, defensive cyber only. A new Point Estimate analysis: the data doesn't support those claims.
May 5, 2026 at 9:55 PM
Claude Mythos #2: Cybersecurity and Project Glasswing
Anthropic is not going to release its new most capable model, Claude Mythos, to the public any time soon.

How good is Mythos?
Is Claude Mythos Preview a particularly big jump in AI capabilities?

Anthropic's Mythos is a wake up call, but experts say the era of AI-driven hacking is already here | Fortune
Anthropic is limiting access to Mythos, but experts say similar capabilities are already in reach.

Claude Mythos Preview: Anthropic's Cybersecurity AI
Guide to Claude Mythos Preview, Anthropic's most capable AI model. Capabilities, benchmarks, Project Glasswing, cybersecurity impact, and business implications.
Claude Mythos #3: Capabilities and Additions
To round out coverage of Mythos, today covers capabilities other than cyber, and anything else additional not covered by the first two posts, including new reactions and details.

“Claude Mythos doesn’t just find vulnerabilities - it exploits them” | Ctech
Anthropic restricts access to its most powerful AI model to around 40 companies, including Apple, Google, Microsoft, Amazon, Nvidia, Palo Alto Networks and CrowdStrike, as part of a $100 million cybersecurity initiative aimed at using the system to detect and patch critical software flaws before similar capabilities spread more widely across the ecosystem.

Anthropic releases Claude Fable, a version of Mythos, days after warning AI is becoming too dangerous
Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like cybersecurity and biology.

Cybersecurity Looks Like Proof of Work Now
The UK's AI Safety Institute recently published Our evaluation of Claude Mythos Preview’s cyber capabilities, their own independent analysis of Claude Mythos which backs up Anthropic's claims that it is …
Cybersecurity Looks Like Proof of Work Now
The UK's AI Safety Institute recently published Our evaluation of Claude Mythos Preview’s cyber capabilities, their own independent analysis of Claude Mythos which backs up Anthropic's claims that it is …
Claude Mythos Preview \ red.anthropic.com
Earlier today we announced Claude Mythos Preview, a new general-purpose language model. This model performs strongly across the board, but it is strikingly capable at computer security tasks. In response, we have launched Project Glasswing, an effort to use Mythos Preview to help secure the world’s most critical software, and to prepare the industry for the practices we all will need to adopt to keep ahead of cyberattackers.
Anthropic Teams Up With Its Rivals to Keep AI From Hacking Everything
The AI lab's Project Glasswing will bring together Apple, Google, and more than 45 other organizations. They'll use the new Claude Mythos Preview model to test advancing AI cybersecurity capabilities.

Claude Mythos can exploit decades-old vulnerabilities, but Anthropic is keeping it locked down
Anthropic's latest model needs to be kept under lock and key, but for how long?

Is Anthropic's Claude Mythos A Big Stunt, Or A Real Security Threat? What The Experts Say
The federal government summoned financial leaders to an emergency meeting over Claude Mythos last week.

A new Anthropic model found security problems ‘in every major operating system and web browser’
Nvidia, Google, Apple, Microsoft, and others will use Claude Mythos Preview to spot vulnerabilities in their systems.

AI #163: Mythos Quest
There exists an AI model, Claude Mythos, that has discovered critical safety vulnerabilities in every major operating system and browser.

From Data Leak to Sandbox Escape: The Full Story of Claude Mythos
Originally published at https://blog.akshatuniyal.com. It started with a misconfigured database. On...
