Claude Opus 5.5
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Input Price
$4.00/1M tokens
Output Price
$20.00/1M tokens
Intelligence
57.6
Coding
N/A
Specifications
Technical details and pricing.
EU-hosted inference API
Power your AI projects with open-source models.
Drop-in OpenAI-compatible API. No data leaves Europe.
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Frequently Asked Questions
What is Claude Opus 5.5 good for?
Use Claude Opus 5.5 for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.
How much does Claude Opus 5.5 cost?
Pricing is based on usage. Current rates are $4.00/1M tokens for input and $20.00/1M tokens for output.
Can I use Claude Opus 5.5 in LLMBase Chat?
Yes. Use the chat action on this page to open Claude Opus 5.5 in LLMBase Chat. Access still follows the current plan and model tier.
Does Claude Opus 5.5 support images or audio?
Claude Opus 5.5 can understand images.
Where does Claude Opus 5.5 run?
Processing terms depend on the selected model. Claude Opus 5.5 is not marked as EU-hosted, so it is processed by the company that operates it. LLMBase shows this for every model so you can choose per use case.
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DetailsBenchmarks and pricing use Artificial Analysis where available. Catalog specs are used as a fallback.