Claude Opus 4.1

Language Proprietary

About Claude Opus 4.1

Claude Opus 4.1 is an AI model developed by Anthropic, in the language category, released in 2025, made available as a proprietary (API-only) model.

On this page you'll find Claude Opus 4.1's full specifications. Review provider pricing and benchmark scores below, or compare Claude Opus 4.1 head-to-head with other language models.

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Frequently asked questions

What is Claude Opus 4.1? ▶

Claude Opus 4.1 is an AI model developed by Anthropic, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created Claude Opus 4.1? ▶

Claude Opus 4.1 was developed by Anthropic and released in 2025.

Is Claude Opus 4.1 open source or proprietary? ▶

Claude Opus 4.1 is a proprietary model. It is accessed through an API rather than by downloading the weights.

How much does Claude Opus 4.1 cost? ▶

Pricing for Claude Opus 4.1 depends on the provider. See the providers table on this page for the latest API rates.

How does Claude Opus 4.1 perform on benchmarks? ▶

Benchmark scores for Claude Opus 4.1 are listed on this page as they are published. You can compare it head-to-head with other models on the GenAIList compare tool.