Claude Mythos 5

Claude Mythos 5 is Anthropic’s trusted-access model for cybersecurity and biology research, with state-of-the-art performance in healthcare.

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Overview

Claude Mythos 5 is Anthropic's model for cybersecurity and biology research. The product page describes it as the company’s most capable model in those domains and says it reaches state-of-the-art performance on cybersecurity, biology research, and healthcare benchmarks.

Unlike Anthropic's general-use Claude models, Mythos 5 is positioned as a trusted-access release for a small group of vetted partners. Anthropic says it is using the model in Project Glasswing and plans to expand access more broadly over time, while maintaining additional safeguards and a 30-day data retention policy for safety monitoring.

Capabilities and safeguards

Specialized research focus

Anthropic positions Mythos 5 as its most capable model for cybersecurity and biology research, with benchmark gains in cybersecurity, biology, and healthcare.

Trusted-access variant

The model is described as the same underlying model as Fable 5, but with safeguards lifted in some areas for vetted dual-use work.

Controlled rollout

Access is limited to a small, growing set of customers through trusted access programs, and the page says deployment began with Project Glasswing partners.

Safety monitoring retention

The product page states that Mythos 5 requires a 30-day data retention policy for safety monitoring.

Broader Claude platform context

The pricing page shows Claude access across web, iOS, Android, and desktop, with higher-tier plans adding research, connectors, and other workspace capabilities.

Where it fits

Vetted cybersecurity work
Use Mythos 5 for dual-use cybersecurity research where a model needs strong capability but access is being controlled through a trusted program.
Scientific research support
Use it for biology and healthcare research tasks that benefit from a model Anthropic describes as state of the art in those domains.
Program-based deployment
Use it in coordinated partner programs such as Project Glasswing, where Anthropic says it is being deployed first.

Pros and Cons

Pros

Focused on cybersecurity and biology research, with benchmark gains called out in those areas.
Used in trusted-access programs for dual-use work, including Project Glasswing.
Backed by additional safeguards and safety monitoring.
Priced separately from standard Claude plans, with token-based usage pricing published on the pricing page.

Cons

Access is restricted to vetted partners rather than broadly self-serve availability.
The product requires a 30-day data retention policy for safety monitoring.
Anthropic says access is currently unavailable for Glasswing partners while it works to restore availability.

FAQ

Who can use Claude Mythos 5?

Claude Mythos 5 is a model for cybersecurity and biology research. The source says it is currently only available to a small group of vetted partners through trusted access programs, with broader access planned in the future.

What does Claude Mythos 5 cost?

The pricing page says Claude Mythos 5 starts at $10 per million input tokens and $50 per million output tokens. The product page also notes that access is currently unavailable for Glasswing partners and that availability may change.

What is Claude Mythos 5 best suited for?

The source describes Mythos 5 as strong in cybersecurity, biology research, and healthcare benchmarks, and says it has safeguards because the same capabilities can be misused in risky domains.

Is Claude Mythos 5 available through the standard Claude app?

Yes. The pricing page lists chat on web, iOS, Android, and desktop for Claude plans, while the product page frames Mythos 5 as part of Anthropic's trusted-access workflow rather than a broadly self-serve release.

Quick Facts

Product type: AI model
Primary use: Cybersecurity and biology research
Availability: Trusted access for vetted partners
Pricing: $10 per million input tokens; $50 per million output tokens
Data policy: 30-day retention for safety monitoring
Source domain: anthropic.com

Analytics of Claude Mythos 5

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Traffic & Rankings

Monthly Visits: 40.5M
Avg. Visit Duration: 01:21
Pages per Visit: 1.63

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