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Claude Sonnet 5
Claude Sonnet 5 API combines strong reasoning, adaptive thinking, and high-resolution vision for complex coding, agent loops, and long-document analysis.
Claude Sonnet 5 is Anthropic's high-performance model for coding and agentic workflows, delivering near-Opus quality at Sonnet cost with a 1M token context window and adaptive thinking.
What is Claude Sonnet 5 API?
Claude Sonnet 5 is Anthropic's high-performance language model for coding, agentic workflows, and complex reasoning. It delivers performance approaching Claude Opus quality at Sonnet pricing — with a 1M token context window, adaptive thinking, and high-resolution vision built in.
The model is available via AI/ML API using the model ID anthropic/claude-sonnet-5 and ships under Anthropic's standard commercial terms.
[Model Specifications embed]
[Performance Benchmarks embed]
API Pricing
Where to Use Claude Sonnet 5
Coding and code review
Claude Sonnet 5 is optimized for writing, debugging, and reviewing code across all major languages. The 1M context window means entire codebases can be loaded for refactoring or cross-file analysis in a single prompt.
Agentic and multi-step workflows
Strong tool-calling and reliable instruction following make Claude Sonnet 5 a natural fit for agent loops that require planning, executing tools, evaluating results, and iterating over many steps.
Long-document analysis
A 1M token context window lets you pass full contracts, research papers, technical specs, and annual reports in one prompt — no chunking required.
Vision and multimodal tasks
High-resolution vision enables accurate processing of diagrams, screenshots, charts, and images — suitable for document intelligence, UI analysis, and visual QA workflows.
Complex reasoning tasks
Adaptive thinking routes harder problems through an extended reasoning process, producing more reliable answers for multi-step math, logic, and technical analysis.
Claude Sonnet 5 vs. the Alternatives
What is Claude Sonnet 5 API?
Claude Sonnet 5 is Anthropic's high-performance language model for coding, agentic workflows, and complex reasoning. It delivers performance approaching Claude Opus quality at Sonnet pricing — with a 1M token context window, adaptive thinking, and high-resolution vision built in.
The model is available via AI/ML API using the model ID anthropic/claude-sonnet-5 and ships under Anthropic's standard commercial terms.
[Model Specifications embed]
[Performance Benchmarks embed]
API Pricing
Where to Use Claude Sonnet 5
Coding and code review
Claude Sonnet 5 is optimized for writing, debugging, and reviewing code across all major languages. The 1M context window means entire codebases can be loaded for refactoring or cross-file analysis in a single prompt.
Agentic and multi-step workflows
Strong tool-calling and reliable instruction following make Claude Sonnet 5 a natural fit for agent loops that require planning, executing tools, evaluating results, and iterating over many steps.
Long-document analysis
A 1M token context window lets you pass full contracts, research papers, technical specs, and annual reports in one prompt — no chunking required.
Vision and multimodal tasks
High-resolution vision enables accurate processing of diagrams, screenshots, charts, and images — suitable for document intelligence, UI analysis, and visual QA workflows.
Complex reasoning tasks
Adaptive thinking routes harder problems through an extended reasoning process, producing more reliable answers for multi-step math, logic, and technical analysis.
Claude Sonnet 5 vs. the Alternatives
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