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Anthropic API pricing

Live API prices for every Anthropic model SF·SIX tracks: per 1M tokens at the standard tier from the cheapest provider, or per image, second or character in the provider’s own unit.

By the SF·SIX research desk, ColdAI · Updated · Prices checked · Sources: OpenRouter · Methodology

Anthropic has 15 models with live API prices on SF·SIX, 15 models priced per 1M tokens. The cheapest is Claude Haiku 5.5 at $0.10 per 1M input and $0.50 per 1M output tokens, via Anthropic. The most used on OpenRouter is Claude Opus 5.5 (933.37B tokens on 2026-10-16).

Models with live prices
15
Cheapest language model
Claude Haiku 5.5$0.10 / $0.50 per 1M tokens
Most used on OpenRouter (2026-10-16)
Claude Opus 5.5933.37B tokens
Newest model
Claude Haiku 5.52026-10-07
Providers serving these models
5

Anthropic token prices (USD per 1M tokens)

Anthropic token prices (USD per 1M tokens)
ModelInput / 1MOutput / 1MBlended 3:1Cheapest standard providerProvidersContext (tokens)OpenRouter tokens / day
Claude Haiku 5.5$0.10$0.50$0.20Anthropic51,000,000302.61B
Claude Sonnet 5.5$2.00$10.00$4.00Anthropic51,000,000396.5B
Claude Opus 5.5$4.00$20.00$8.00Anthropic51,000,000933.37B
Claude Opus 5$5.00$25.00$10.00Anthropic51,000,00082.77B
Claude Sonnet 5$2.00$10.00$4.00Anthropic51,000,00087.16B
Claude Fable 5$10.00$50.00$20.00Anthropic51,000,000Not in named rows
Claude Opus 4.8$5.00$25.00$10.00Anthropic51,000,000Not in named rows
Claude Opus 4.7$5.00$25.00$10.00Anthropic51,000,000Not in named rows
Claude Sonnet 4.6$3.00$15.00$6.00Anthropic51,000,000Not in named rows
Claude Opus 4.6$5.00$25.00$10.00Anthropic51,000,000Not in named rows
Claude Opus 4.5$5.00$25.00$10.00Anthropic5200,000Not in named rows
Claude Sonnet 4.5$3.00$15.00$6.00Anthropic51,000,000Not in named rows
Claude Fable 5.1$10.00$50.00$20.00Anthropic41,000,000Not in named rows
Claude Haiku 4.5$1.00$5.00$2.00Anthropic4200,000Not in named rows
Claude Opus 4.1$15.00$75.00$30.00Amazon Bedrock1200,000Not in named rows

Each model’s headline price: the cheapest qualifying provider at the standard tier in the default region. Most widely served first.

Method

Prices are USD per 1M tokens at the standard service tier in the default region: the cheapest qualifying provider per model, with flex, batch, priority and fast endpoints and unusually low outliers never used as the headline. “Blended” weights input and output 3:1. Missing prices are unknown, not free. OpenRouter tokens per day are the latest full UTC day of OpenRouter’s public rankings (named rows only). Prices move: see AI API price changes for recent cuts and increases.

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