StackPricing
All AI models

Anthropic · AI model API pricing

How much does Claude Haiku 4.5 cost?

Anthropic's fast small model — matches GPT-5.6 Luna on input and beats it slightly on output.

Rate card

Input tokens$1 / 1M
Cached input$0.10 / 1M
Output tokens$5 / 1M
Context window200K

What that means per month

WorkloadTokens / monthCost / month
Prototype 1M in · 0.3M out $2.50/mo
Small app 10M in · 3M out $25/mo
Production app 50M in · 15M out $125/mo
High volume 200M in · 60M out $500/mo
Heavy platform 1B in · 300M out $2,500/mo
Price it at your exact usage Official pricing page

Standard on-demand rates from Anthropic's official pricing docs, last checked 2026-07-16. Monthly figures exclude caching and batch discounts. Confirm live pricing before committing.

Cheaper alternatives

At a reference workload of 10M input / 3M output tokens a month, these cost less than Claude Haiku 4.5 ($25/mo):

Claude Haiku 4.5 head-to-head