Claude Mythos 5 pricing

Claude Mythos 5 from Anthropic costs $10.00 per 1M input tokens and $50.00 per 1M output tokens. Cached input is $1.00 per 1M.

API id claude-mythos-5 · Anthropic · source · updated 2026-08-11

$10.00
Input / 1M tokens
$50.00
Output / 1M tokens
$1.00
Cached input / 1M
Context window

What Claude Mythos 5 costs in practice

Estimated cost at common usage volumes
WorkloadInput tokensOutput tokensEstimated cost
Short chat turn1,000500$0.04
Document summary50,0002,000$0.60
1M tokens in, 200K out1,000,000200,000$20.00

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does Claude Mythos 5 cost per 1M tokens?
Claude Mythos 5 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens on the standard tier. Cached input is $1.00 per 1M.
What is Claude Mythos 5's context window?
Anthropic does not publish a context window for Claude Mythos 5 on its pricing page.
Is there a cheaper Claude model than Claude Mythos 5?
Yes. Claude Haiku 3.5 is $0.800 per 1M input tokens versus $10.00 for Claude Mythos 5.
Where does this Claude Mythos 5 price come from?
Directly from Anthropic's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.

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