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Anthropic API pricing: Claude costs per million tokens

The Anthropic API bills Claude models per 1 million tokens. Fable 5.1 is $10.00 / $50.00; Opus 5.5 is $4.00 / $20.00; Sonnet 5.5 is $2.00 / $10.00; Haiku 5.5 (≤100K) is $0.10 / $0.50.

Claude Fable 5.1$10.00 / $50.00in/out per 1M
Claude Opus 5.5$4.00 / $20.00in/out per 1M
Claude Sonnet 5.5$2.00 / $10.00in/out per 1M
Claude Haiku 5.5$0.10 / $0.50≤100K prompt

All Anthropic API plans

Per-seat prices in USD from the official pricing pages. “Annual billing” is the per-month price when billed annually, as the vendor states it; the yearly total is shown where published.

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Anthropic API plans and prices (USD, excl. tax)
PlanMonthly billingAnnual billingSeatsUsage (as published)

Source

platform.claude.com docs pricing, checked 2026-11-05 (Asia/Colombo). Four current models match our data.

Sources: Anthropic API pricing

All LLM API rates: LLM API pricing · Anthropic.

Sources: .

Anthropic API rates (USD per 1M tokens)

Anthropic API rates (USD per 1M tokens)
FeatureFable 5.1Opus 5.5Sonnet 5.5Haiku 5.5 (≤100K)
Input$10.00$4.00$2.00$0.10
Output$50.00$20.00$10.00$0.50
Cache hits$0.25$0.20$0.10$0.01
  • Haiku >100K and Opus Fast mode were not re-diffed this pass: price not verified beyond the rows above.
  • Cache-write windows (5m / 1h) differ from OpenAI’s 30m / 12h.
  • Consumer Claude Max/Ultra naming does not apply to the API.

Checked 2026-11-05 (Asia/Colombo). Tax isn’t stated; prices shown excluding tax.

How Anthropic API pricing works

Cache

Cache hits are much cheaper than fresh input. Anthropic also bills separate cache-write rates for 5-minute and 1-hour TTLs.

Not the same as Claude Pro / Max / Ultra

Those are consumer subscriptions. This page is the developer API only.

Related

Anthropic API pricing FAQ

How much does the Anthropic API cost?
Fable 5.1 $10.00/$50.00; Opus 5.5 $4.00/$20.00; Sonnet 5.5 $2.00/$10.00; Haiku 5.5 (≤100K) $0.10/$0.50 per 1M.
Is this Claude Pro or Max?
No. This is the developer API. Consumer plans (Pro, Max, Ultra) are separate.
Does prompt caching change the price?
Yes. Cache hits cost much less than fresh input, and Anthropic bills separate cache-write rates for 5-minute and 1-hour TTLs.
Do prices include tax?
Tax isn’t stated; we show prices excluding tax.