This model is deprecated
Claude 3 Opus was deprecated on Jun 30, 2025 and can no longer be run here. Its evaluation results and details remain available for reference. Try Claude Opus 4.8 instead.
Claude 3 Opus is Anthropic’s flagship AI model, released in March 2024 as the most advanced member of the Claude 3 family. It is designed for complex reasoning, open-ended dialogue, coding, and tasks requiring high accuracy across domains. The model is multimodal, supporting both text and image inputs, and features an expansive ~200,000-token context window, enabling it to process and reason over long documents and detailed multimodal content.
Compared to earlier Claude models, Opus demonstrates significant performance gains on reasoning and coding benchmarks, positioning it among the top large-scale models available. Common use cases include advanced problem-solving, long-form content analysis, multimodal research support, and AI-driven software development.
—
Usage
Past 30 DaysNot available
Not in Playground
Other models worth comparing for similar use cases.
Other versions in the same family as Claude 3 Opus.
License terms and commercial-use guidance for Claude 3 Opus.
This model is proprietary. The author retains all rights, and use of the model is governed by their specific terms of service or license agreement.
Commercial use depends on the terms set by the model author. Most proprietary commercial models require a paid subscription, API key, or per-call billing. Check the provider’s pricing and terms-of-service for details.
License information is provided as a guide and is not legal advice.