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.
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.
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
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
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