BARREL API

Use Anthropic's Claude models in your own work and tools through BARREL. BARREL arranges a separate access for each customer under Anthropic's terms, and bills usage monthly at the prices below.

Price list

ModelInputCache writeCache readOutput
Claude Opus 5.5Most capable for complex reasoning and coding$5.00$6.25$0.25$25.00
Claude Sonnet 5.5Best balance of speed and capability$2.50$3.125$0.25$12.50
Claude Haiku 4.5Fastest and lowest cost$1.25$1.5625$0.125$6.25
Claude Fable 5.1$12.50$15.625$0.3125$62.50

US dollars per million tokens, plus GST as applicable. Web search (tool): $12.50 per 1,000 searches (plus the tokens of the search results). Prices last checked 2026-10-03.

Terms

  1. BARREL API gives you access to Anthropic's Claude models, arranged by BARREL separately for you. BARREL's own API key is never shared.
  2. Usage is charged at the published BARREL API price list in US dollars (Anthropic's list price plus 25 %), plus GST as applicable, billed monthly on actual use.
  3. Prices follow Anthropic's: when Anthropic changes a price, the BARREL API price changes from the same date. The price list shows when it was last checked.
  4. This request is not an order and nothing is charged by it. BARREL contacts you with the quotation, payment terms and the access details.
  5. You use the service under Anthropic's Usage Policy and Commercial Terms, and under these terms. You keep your access details private and do not share or resell them.
  6. BARREL may suspend or end access for misuse, for unpaid charges, or when Anthropic requires it.

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BARREL: Bharat Atom Renewable Resources Energy Limited