VerdictPal
Join

Models / Anthropic

Claude Mythos 5.1

Claude Mythos · Released 2026-09-01

Same underlying model as Claude Fable 5.1 with safeguards set for trusted cyberdefense and life-science partners. Project Glasswing / trusted-access only — not general consumer availability. $10 / $50 per 1M tokens; cache reads $0.25.

Restricted Mythos-tier access for cyber defenders and approved life-science researchers — not a default deployment model.

Composite—
Context1M
Input / 1M$10
Output / 1M$50
Knowledge cutoff2026-06-01
Statussolid
Not enough families covered yet.Add more benchmark rows for Claude Mythos 5.1 to see the family profile.
Benchmark placements

Where Claude Mythos 5.1 places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.

No benchmark rows yet for Claude Mythos 5.1.

Family context

The three highest-scoring models with pages in each capability family. Where Claude Mythos 5.1 shows up, it's highlighted.

Family coverage

A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.

No family coverage yet.
Price vs. performance
0255075100$0.10$0.30$1$3$10$30input USD / 1M tokens · log scale →← intelligence

Hover or tab any dot for name, score, and input price.

AnthropicOpenAIMistralAlibabaDeepSeekGoogleMoonshotMetaMiniMaxxAIZhipuXiaomiOtherMeituanCohereNVIDIA

Full benchmark ledger

Every catalog benchmark for Claude Mythos 5.1. Scores link to the original source; gaps mean no public row exists yet.

0 sourced rows

0 of 37 catalog benchmarks have a sourced row for Claude Mythos 5.1.

Sources