Claude Mythos Preview
Our most capable frontier model to date.
A preview Claude model release from Anthropic described in the discovery context as having restricted access for defensive security work through Project Glasswing.
Pricing
Publicly stated pricing applies to Project Glasswing participants during the gated research preview. Anthropic says it committed $100M in model usage credits to cover Project Glasswing and additional participants.
Anthropic states that Claude Mythos Preview is available to Project Glasswing participants at $25 per million input tokens and $125 per million output tokens, accessible via the Claude API and partner platforms. This is gated research-preview access; Anthropic has committed usage credits to cover Project Glasswing and additional participants.