Anthropic API Pricing
Anthropic API pricing for all 8 models, updated May 2026. Compare input and output token costs per 1M tokens across the full Anthropic model range.
Cheapest model: Claude Haiku 4.5 at $1.00/1M input tokens
Model | Provider | Input / 1M | Output / 1M | Est. Input Cost | Est. Output Cost |
|---|---|---|---|---|---|
Claude Haiku 4.5200,000 ctx | Anthropic | $1.00 | $5.00 | $1.0000 | $5.0000 |
Claude Sonnet 4.5200,000 ctx | Anthropic | $3.00 | $15.00 | $3.0000 | $15.0000 |
Claude Sonnet 4200,000 ctx | Anthropic | $3.00 | $15.00 | $3.0000 | $15.0000 |
Claude Sonnet 4.61,000,000 ctx | Anthropic | $3.00 | $15.00 | $3.0000 | $15.0000 |
Claude Opus 4.61,000,000 ctx | Anthropic | $5.00 | $25.00 | $5.0000 | $25.0000 |
Claude Opus 4.5200,000 ctx | Anthropic | $5.00 | $25.00 | $5.0000 | $25.0000 |
Claude Opus 4200,000 ctx | Anthropic | $15.00 | $75.00 | $15.0000 | $75.0000 |
Claude Opus 4.1200,000 ctx | Anthropic | $15.00 | $75.00 | $15.0000 | $75.0000 |
About Anthropic API Pricing
Anthropic offers 8 API models tracked on UsagePricing. All prices shown are standard pay-as-you-go rates per 1 million tokens — input tokens (your prompt) and output tokens (the model's response) are billed separately. Prices are reviewed daily and reflect the latest published rates from Anthropic.
Featured Anthropic Models
Frequently Asked Questions
How much does Anthropic API cost? ▼
Anthropic offers 8 API models. Pricing starts from $1.00 per 1M input tokens as of May 2026. Compare all Anthropic models on this page.
What is the cheapest Anthropic model? ▼
As of May 2026, the cheapest Anthropic model by input price is Claude Haiku 4.5 at $1.00 per 1M input tokens.
How do I calculate my Anthropic API costs? ▼
Use the free Anthropic pricing calculator on UsagePricing.com. Enter your expected monthly token volume and the calculator estimates your total API spend based on current Anthropic rates.