Anthropic PBC is allowing 150 additional organizations around the world to access Mythos, an artificial intelligence model aimed at finding cybersecurity vulnerabilities that the company has said was too dangerous to make available to the general public.
Anthropic plans to announce the increased number of users Tuesday, bringing the total groups with access to about 200. The new organizations are based in 15 countries and span industries such as power, healthcare and communications, the company said.
Though Anthropic declined to name the additional participants, it said the group includes companies and nonprofits that produce key programming code for broader use. People familiar with the matter have said that the European Union’s cybersecurity body will be granted access to the software.
The move follows Anthropic’s filing of confidential paperwork for an initial public offering, vaulting the startup ahead of AI rival OpenAI. The company said in a blog post Monday that it had not set a number of shares it would offer or a price for the shares.
Anthropic, once viewed as an underdog to OpenAI, raised $65 billion in a funding round last week at a $965 billion valuation, including the investment. That put its valuation ahead of OpenAI’s for the first time. Anthropic’s advances in coding and cybersecurity capabilities have rattled markets and also enticed new business customers.
Mythos has emerged as a focal point for the San Francisco-based company in recent months. Anthropic has said that the software is capable of identifying and exploiting vulnerabilities “in every major operating system and every major web browser when directed by a user to do so.”
As a result, the company initially limited Mythos’ availability to a handful of large tech and Wall Street companies through an initiative known as Project Glasswing in April.
Since Mythos was launched, the software has been used to find over 10,000 serious vulnerabilities, Anthropic said.The company said in recent days that it planned to widely release new AI models in the coming weeks with cybersecurity capabilities comparable to Mythos. Anthropic has made “swift progress” in developing the safety safeguards needed to do so, it said.
Photo: Anthropic Co-Founder and CEO Dario Amodei. Photographer: Samyukta Lakshmi/Bloomberg
Copyright 2026 Bloomberg.
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