Claude Haiku 4.5 API Pricing & Cost Calculator
Claude Haiku 4.5 is perfect for low-latency tasks. Caching drops input costs to $0.10 per million, making high-volume agent tasks extremely cost-effective.
Claude Haiku 4.5 is Anthropic's fastest, most lightweight model, optimized for low latency and high frequency.
By TechCompare · Updated
Calculator
Cost Comparison
Based on 20,000 input tokens (50% cached), 2,000 output tokens, and 500 requests.Prices are fetched live from OpenRouter and may include temporary promotional discounts not accounted for in our article and comparison figures.
How this is calculated
Claude Haiku 4.5 is priced at $1.00 per million input tokens and $5.00 per million output tokens, supporting a 90% caching discount ($0.10 per million) and a 50% batch discount ($0.50 per million inputs, $2.50 per million outputs).
Verdict
The base rates are $1/M input and $5/M output, already the lightest of Anthropic's lineup, and the 90% cache discount strips input to $0.10/M while the 50% batch discount halves both rows to $0.50/M input and $2.50/M output. A representative 100K + 5K call lands at roughly $0.125 before discounts and close to $0.035 with a 90% cache hit. That makes Haiku 4.5 the right tier for high-frequency classification, structured-output formatting, and tool-routing loops where output cost stays modest and the cache reuse rate is high.
More API Standalones scenarios
Related guides
Frequently asked questions
Does Claude Haiku 4.5 support prompt caching?
How much does Claude Haiku 4.5 cost per million output tokens?
Is Claude Haiku 4.5 worth it over GPT-5.4 Mini?
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