Claude Mythos Preview
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A to Z
- A · App
- No
- B · Built By
- Anthropic
- C · CEO & Politics
- Dario Amodei — Pro-AI-regulation; first-ever $1M personal donation to bipartisan Public First super PAC (Jul 2026); otherwise avoids partisan politics
- D · Date
- 2026
- E · Expertise
- Intermediate+
- F · Free Tier
- No free tier
- G · Generates
- Text only
- H · Deployment
- Cloud (restricted: Project Glasswing participants only)
- I · Inputs
- Text
- J · Jurisdiction
- USA
- K · Key Staffers
- Daniela Amodei (President & Co-Founder), Jack Clark (Co-Founder, Policy), Tom Brown (Co-Founder), Sam McCandlish (Co-Founder), Jared Kaplan (Co-Founder, Chief Science Officer), Mike Krieger (Labs), Paul Smith (CCO)
- L · Languages
- English-primary
- M · Model Type
- LLM
- N · Safety Issues
- Withheld from general release: Anthropic cites its offensive-cyber capability (finding and exploiting software vulnerabilities) as the reason for restricted, partner-only access.
- O · Open Source
- Proprietary
- P · Pricing
- Research preview for Project Glasswing participants; after usage credits, $25/M input and $125/M output (Claude API, Amazon Bedrock, Google Vertex AI, Microsoft Foundry).
- Q · AIDb Rating
- 8/10 · AIDb v2.0 (curated): Capability 9.5/10 · Currency 9/10 · Access 1/10 · Significance 9/10 → 8.05
- R · What Makes It Special
- Claude Mythos Preview, Anthropic's first Mythos-class model, announced April 7, 2026 as a gated research preview for Project Glasswing, a defensive-cybersecurity effort whose launch partners include AWS, Apple, Cisco, CrowdStrike, Google, Microsoft and NVIDIA, plus 40+ other organizations; Anthropic says it found thousands of high-severity vulnerabilities, including in every major operating system and web browser. Claude Mythos 5 replaced it in June 2026, and Anthropic lists it as deprecated.
- S · Stock / Status
- Private ($380B valuation, Feb 2026); confidentially filed for IPO Jun 1, 2026
- T · Training Cutoff
- [UNKNOWN]
- U · Users
- [UNKNOWN]
- V · Voice Chat
- No
- W · Weights
- API only
- X · X Handle
- @AnthropicAI
- Y · Year Founded
- [UNKNOWN]
- Z · Bottom Line
- Proprietary LLM from Anthropic, released 2026.
Data completeness 88% · Last verified 2026-09-25 · Primary source ↗
Cite this
“Claude Mythos Preview.” AIDb — The AI Database. Verified 2026-09-25. https://theaidatabase.com/m/anthropic-claude-mythos-preview.html
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Claude · Claude 2 · Claude 2.1 · Claude 3 · Claude 3 Haiku · Claude 3 Opus · Claude 3 Sonnet · Claude 3.5