Claude Mythos Preview
Gated research-preview general-purpose language model
Anthropic's gated research-preview general-purpose language model, announced on 2026-04-07, with a 1M-token context window per AWS Bedrock model card and a focus on cybersecurity, autonomous coding, and long-running agents.
Pricing
Official site · May 2, 2026, 6:38 AM
Input / 1M
$25.00
Output / 1M
$125.00
Research preview model; no separate cached-input price was explicitly stated in the cited sources. Pricing is described as available to Project Glasswing participants and via Anthropic’s platform partners.
Anthropic’s official Project Glasswing page states that Claude Mythos Preview is available at $25 per million input tokens and $125 per million output tokens. Anthropic’s pricing docs also list Claude Mythos Preview under long-context pricing at standard pricing.
Model Intelligence
Context window
1,000,000 tokens
Benchmarkable
Yes
Model level
release
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