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Claude Sonnet 5.5 API pricing on OpenRouter

Every OpenRouter Claude Sonnet 5.5 rate we track, compared against 2 providers serving the same model.

Input from /1M
$1.00
Output /1M
$5.00
Price rank
#1 of 2
Last updated
September 29, 2026

OpenRouter currently has the cheapest Claude Sonnet 5.5 input price among the 2 providers we track.

OpenRouter Claude Sonnet 5.5 rates

Prices per 1M tokens. Batch and cached-input rates are shown where the provider publishes them.

OpenRouter Claude Sonnet 5.5 pricing by mode
ModeInputOutput
Batch$1.00/1M$5.00/1M
Standard$2.00/1M$10.00/1M

About Claude Sonnet 5.5

Creator
Anthropic
Modalities
text
Full Claude Sonnet 5.5 details and every provider →

Claude Sonnet 5.5 on other providers

About OpenRouter

OpenRouter provides a unified API for accessing hundreds of AI models from multiple providers. It aggregates models from OpenAI, Anthropic, Google, Meta, Mistral, and many others, offering a single endpoint with automatic fallback routing and provider optimization.

Frequently Asked Questions

How much does Claude Sonnet 5.5 cost on OpenRouter?

OpenRouter serves Claude Sonnet 5.5 from $1.00 per 1M input tokens, across 2 tracked pricing modes. Prices are collected daily — see the table above for current input, output, and cached-input rates.

Is OpenRouter the cheapest way to run Claude Sonnet 5.5?

Of the 2 providers we track serving Claude Sonnet 5.5, OpenRouter currently has the lowest input price. Rates change often, and throughput and latency differ between providers — check the comparison above before committing.

Does OpenRouter offer batch or cached pricing for Claude Sonnet 5.5?

We track 2 Claude Sonnet 5.5 offerings from OpenRouter. Batch and cached-input rates appear in the table above when the provider publishes them; blank cells mean we have no current figure for that mode.