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Claude Opus 4.5

by Anthropic
API Available

Claude Opus 4.5 is Anthropic's latest AI model, launched on November 24, 2025. It is designed to be intelligent and efficient, excelling in coding, agents, and computer use. The model significantly improves performance in everyday tasks such as deep research and working with slides and spreadsheets. It is state-of-the-art in real-world software engineering tests and is available on various platforms, including apps, API, and major cloud services.

Specifications

Released
December 2025

Pricing

Input
$5.00/MTok
Output
$25.00/MTok

Pricing makes Opus-level capabilities accessible to more users, teams, and enterprises.

Capabilities

handles ambiguity and reasons about tradeoffsfigures out fixes for complex, multi-system bugsdelivers high-quality codeexcels at powering heavy-duty agentic workflowssurpasses internal coding benchmarks while cutting token usage in halfwell-suited for code migration and code refactoringdelivers frontier reasoningexcels at long-horizon, autonomous taskshandles complex workflows with fewer dead-endsachieves state-of-the-art results for complex enterprise tasksdelivers measurable gains in evaluationsautonomously refines capabilitieslearns from experience across technical tasksimproves accuracy and efficiency in Excel automation and financial modelinggenerates long-context storytellinghandles 3D visualizationscatches more issues in code reviewsoutperforms previous models across benchmarks

Best For

Research & Analysis

Conducting research, summarizing documents, and synthesizing information

Code Generation

Writing, debugging, and explaining code across programming languages

Automation & Agents

Building AI agents for workflow automation and autonomous task execution

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