Claude Token Cost Calculator — Anthropic API Pricing Tool

Calculate your exact Anthropic Claude API costs by model, token volume, and daily request volume. Compare Claude Opus, Sonnet, and Haiku pricing.

Practical example: 500 users, 20 chats/day. For a customer support bot scenario, enter the values that match your situation to get an instant cost estimate.

How does Anthropic charge for Claude API? Anthropic charges per million tokens, separately for input (prompt) and output (response). Claude Haiku 4 is the most affordable at $0.80/1M input tokens, Sonnet 4 at $3/1M, and Opus 4 at $15/1M.

Formula: monthlyCost = (inputTokens/1000 × inputPrice + outputTokens/1000 × outputPrice) × requestsPerDay × 30