Claude Opus 5.5 Pricing

Claude Opus 5.5 is Anthropic's current Opus model for long-running agentic coding and knowledge work, priced below Claude Opus 5's $5 / $25.

Quick answer

Claude Opus 5.5 costs $4.00 per 1M input tokens and $20.00 per 1M output tokens. 1,000 typical requests cost about $16.00.

Claude Opus 5.5 API pricing

Price type	Now (USD per 1M tokens)
Input	$4.00
Cache reads	$0.20
Cache writes, 5 minutes	$5.00
Cache writes, 1 hour	$8.00
Output	$20.00
Batch input	$2.00
Batch output	$10.00

What Claude Opus 5.5 costs in practice

Take a typical request with 2,000 input tokens and 400 output tokens. On Claude Opus 5.5:

1,000 requests cost $16.00 at standard prices.
1 million requests a month cost $16,000.
If half of each prompt is read from cache, 1,000 requests cost $12.20.
On the Batch API, with the same caching, they cost $6.10.

Cost calculator

Requests per month

Input tokens per request

Output tokens per request

Share of input read from cache (%)

Monthly cost, standard–

With your cache share–

On the Batch API–

Per 1,000 requests–

With apicuts: at least 20% less, after our fee–

Uses Claude Opus 5.5's standard prices checked October 30, 2026. Cache writes, thinking tokens and long-context tiers aren't included.

How to pay less for Claude Opus 5.5

Cache reads cost $0.20 instead of $4.00. Writes cost 1.25x the base price for a 5-minute cache and 2x for a 1-hour cache, so caching pays off on prefixes you reuse.
The Batch API takes 50% off input and output tokens.
Model choice: route simple requests to Haiku 5.5, and keep Opus for the work that needs it.

apicuts switches these on for you, routes each request to the lowest-cost route that passes your quality checks, and guarantees at least 20% lower cost after our fee. See pricing.

Compare Claude Opus 5.5

See every model side by side in the LLM API pricing comparison, or read GPT-6.1 Sol vs Claude Opus 5.5, or read Claude Opus 5.5 vs Claude Sonnet 5.5.

Frequently asked questions

How much does Claude Opus 5.5 cost?

Claude Opus 5.5 costs $4.00 per 1M input tokens and $20.00 per 1M output tokens at standard prices, according to Anthropic's pricing page (checked October 30, 2026).

How much do 1,000 Claude Opus 5.5 requests cost?

About $16.00, for requests of 2,000 input and 400 output tokens without caching.

Is there a cheaper way to use Claude Opus 5.5?

Yes: caching repeated prompt prefixes, moving work that can wait to the Batch API at half price, capping output length, and sending simpler requests to a cheaper model.

Sources: Anthropic's pricing page. Checked October 30, 2026.

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