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anthropic API Pricing

anthropic offers 30 API models in the catalog. Combined input+output prices range from $0.3 (Anthropic: Claude Haiku 5.5 (batch)) to $90 (Anthropic: Claude Opus 4.1) per 1M tokens. Its most recent model is Anthropic: Claude Haiku 5.5 (batch) at $0.05 input / $0.25 output.
ModelInput /1MOutput /1MCached in /1MContext
Anthropic: Claude Haiku 5.5 (batch)$0.05$0.25$0.0051,000,000
Anthropic: Claude Haiku 5.5$0.1$0.5$0.011,000,000
Anthropic: Claude Haiku 4.5 (batch)$0.5$2.5$0.05200,000
Anthropic: Claude Sonnet 5.5 (batch)$1$5$0.051,000,000
Anthropic: Claude Sonnet 5 (batch)$1$5$0.11,000,000
Anthropic: Claude Haiku 4.5$1$5$0.1200,000
Anthropic: Claude Sonnet 4.6 (batch)$1.5$7.5$0.151,000,000
Anthropic: Claude Sonnet 4.5 (batch)$1.5$7.5$0.151,000,000
Anthropic: Claude Sonnet 5.5$2$10$0.11,000,000
Anthropic: Claude Opus 5.5 (batch)$2$10$0.11,000,000
Anthropic: Claude Sonnet 5$2$10$0.21,000,000
Anthropic: Claude Opus 5 (batch)$2.5$12.5$0.251,000,000
Anthropic: Claude Opus 4.8 (batch)$2.5$12.5$0.251,000,000
Anthropic: Claude Opus 4.7 (batch)$2.5$12.5$0.251,000,000
Anthropic: Claude Opus 4.6 (batch)$2.5$12.5$0.251,000,000
Anthropic: Claude Opus 4.5 (batch)$2.5$12.5$0.25200,000
Anthropic: Claude Sonnet 4.6$3$15$0.31,000,000
Anthropic: Claude Sonnet 4.5$3$15$0.31,000,000
Anthropic: Claude Opus 5.5$4$20$0.21,000,000
Anthropic: Claude Fable 5.1 (batch)$5$25$0.1251,000,000
Anthropic: Claude Opus 5$5$25$0.51,000,000
Anthropic: Claude Fable 5 (batch)$5$25$0.51,000,000
Anthropic: Claude Opus 4.8$5$25$0.51,000,000
Anthropic: Claude Opus 4.7$5$25$0.51,000,000
Anthropic: Claude Opus 4.6$5$25$0.51,000,000
Anthropic: Claude Opus 4.5$5$25$0.5200,000
Anthropic: Claude Opus 4.1 (batch)$7.5$37.5$0.75200,000
Anthropic: Claude Fable 5.1$10$50$0.251,000,000
Anthropic: Claude Fable 5$10$50$11,000,000
Anthropic: Claude Opus 4.1$15$75$1.5200,000

Frequently asked questions

What is the cheapest anthropic model?

The cheapest anthropic model by combined price is Anthropic: Claude Haiku 5.5 (batch) at $0.05 input and $0.25 output per 1M tokens.

How many models does anthropic offer via API?

anthropic lists 30 models in the OpenRouter catalog as of October 21, 2026.

Price snapshot October 21, 2026, refreshed daily. Official anthropic pricing page ↗