CLAUDE / ANTHROPIC · UPDATED JUL 2026

Claude API Pricing Calculator — Haiku 4.5, Sonnet, Opus 5

Estimate your monthly Anthropic API bill from real usage numbers, and see exactly how much cheaper Haiku is versus Sonnet and Opus for your workload.

Claude pricing at a glance

ModelInput $/1MOutput $/1MBest for
Claude Haiku 4.5$1.00$5.00High-volume, low-latency tasks
Claude Sonnet (promo thru Aug 31 2026)$2.00$10.00General-purpose default
Claude Sonnet (standard, from Sep 1 2026)$3.00$15.00General-purpose default
Claude Opus 5$5.00$25.00Hardest reasoning tasks

See Anthropic's official pricing page →

Frequently asked questions

How much does the Claude API cost?

Haiku 4.5 is $1.00/$5.00 per million input/output tokens, Sonnet is $2.00/$10.00 under a promo through Aug 31 2026 ($3.00/$15.00 standard afterward), and Opus 5 is $5.00/$25.00. Rates change — verify on Anthropic's pricing page.

Is Sonnet or Opus cheaper?

Sonnet is roughly 60% cheaper than Opus per token. Reserve Opus for tasks where the extra reasoning quality is worth the cost.

Does caching help with Claude costs?

Yes — cached input tokens are billed at about 10% of the standard rate, and Batch API usage is roughly 50% off. Toggle both in the calculator above to see the effect on your bill.

Compare against GPT and Gemini

Want the full picture across providers? Use the universal LLM cost calculator to compare Claude against OpenAI's GPT models and Google's Gemini models side by side for the same workload.