Why use Claude Mythos Preview on Anthropic?
Anthropic offers Claude Mythos Preview with pay-as-you-go pricing at $25.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $25.00 |
| Output tokens | $125.00 |
Capabilities
About Claude Mythos Preview
Claude Mythos Preview is Anthropic's frontier research model, positioned above the public Claude 4 family and released exclusively via invitation-only Project Glasswing to roughly 12 launch partners and over 40 organizations working on critical infrastructure. No public API or self-serve access. Specializes in defensive cybersecurity — autonomously identified zero-day vulnerabilities including a 27-year-old OpenBSD TCP SACK remote code execution bug and a 17-year-old FreeBSD NFS RCE. Codenamed Capybara internally. Scores 93.9% on SWE-bench Verified, 82.0% on Terminal-Bench 2.0, and 97.6% on USAMO 2026. Partner pricing: $25/$125 per million tokens (input/output). Max output: 128K tokens. Knowledge cutoff: December 2025.
FAQ
What does Claude Mythos Preview cost on Anthropic?
On Anthropic, Claude Mythos Preview costs $25.00 per 1M input tokens and $125.00 per 1M output tokens.
What is the context window for Claude Mythos Preview on Anthropic?
Claude Mythos Preview supports a 1,000,000 token context window on Anthropic.
Who created Claude Mythos Preview?
Claude Mythos Preview was created by Anthropic as part of the Claude Mythos model family.
Is Claude Mythos Preview open source?
Claude Mythos Preview is not open source; the seed data lists it as proprietary.