Home / Anthropic Switch to another Anthropic / Claude model

Claude Mythos 5.1 API price

Name: Claude Mythos 5.1
Brand: Anthropic

Anthropic · 1M token context · 2 sellers, checked 19 Oct, 19:54 UTC

Input, per 1M tokens

$10.00

official price

Output, per 1M tokens

$50.00

official price

Cheapest at the official price, from Anthropic; 2 sellers compared below.

IteraCompute lists it for less, $5.00 input / $25.00 output per 1M, but we have not verified that seller (our read). The prices above are the cheapest seller we consider reliable.

Cost calculator: where to buy, and what it costs you

Pick a use case, a volume and a provider. Monthly figures assume 30 days.

1,500 input and 400 output tokens per request, 30% of input cached.

Requests per day

Provider, with its monthly cost for this workload

IteraCompute ↗Inference host · not verified by easiapiai$5.00 in · $25.00 out · cached $0.13 per 1M$459Not verified by us
Anthropic ↗✓ OfficialOfficial price$10.00 in · $50.00 out · cached $0.25 per 1M$918Cheapest reliable
Other modes, not the standard service
Anthropic · Batch ↗✓ OfficialBatch: answers within 24 hours · no cache discount$5.00 in · $25.00 out per 1M$525

Context window: 1M1,000,000 tokens
Cached input: from $0.25per 1M tokens
Last checked: 19 Oct, 19:54 UTC

Price history

Cheapest standard price per 1M tokens, recorded every 6 hours since 16 Oct 2026.

OutputInputOfficial list price

19 Oct Anthropic (Batch) first listed in our data at $5.00 / $25.00
19 Oct Anthropic first listed in our data at $10.00 / $50.00
19 Oct IteraCompute first listed in our data at $5.00 / $25.00

Every price change this month →

More from Anthropic: Claude Opus 5.5 $4.00 · Claude Sonnet 5.5 $2.00 · Claude Fable 5.1 $10.00