Claude Sonnet 5 — reviews, specs & pricing
The best Claude balance of speed and intelligence. 1M context, $3/$15 per 1M tokens list price (introductory $2/$10 through August 31, 2026).
Summary
Claude Sonnet 5 by Anthropic delivers an exceptional balance of speed and high-tier intelligence, specifically optimized for advanced chat and complex coding tasks. With a massive 1-million-token context window, it effortlessly processes expansive documents and entire code repositories in a single query. It represents a highly cost-effective yet powerful solution for developers requiring deep reasoning without sacrificing performance.
Sample use case
A software development team can utilize Claude Sonnet 5 to perform comprehensive code reviews and automated refactoring across a massive enterprise codebase. By ingestion of hundreds of source files into the 1M token context window, the model can trace complex dependencies, identify security vulnerabilities, and generate optimized, production-ready code suggestions in seconds.
Specifications
- Provider: anthropic
- License: closed
- Context: 1000k tokens
- Input price: $3/M tok
- Output price: $15/M tok
Pros
- Perfect balance of speed and intelligence
- Massive 1M token context capacity
- Excellent code generation and debugging
- Attractive introductory pricing through August 2026
Cons
- List price increases significantly after promotional period
- Overpowered for simple, low-complexity chat tasks
- Modality is limited to text and code only
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