Anthropic: Claude Sonnet 4
By Anthropic
Released: 2025-05-22
Anthropic Claude Sonnet 4, developed by Anthropic, features 1,000k-token context window. Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%), Sonnet 4 balances capability and computational efficiency, making it suitable for a broad range of applications from routine coding tasks to complex software development projects. Key enhancements include improved autonomous codebase navigation, reduced error rates in agent-driven workflows, and increased reliability in following intricate instructions. Sonnet 4 is optimised for practical everyday use, providing advanced reasoning capabilities while maintaining efficiency and responsiveness in diverse internal and external scenarios. Read more at the [blog post here](https://www.anthropic.com/news/claude-4) Premium pricing at $3.0/1M tokens reflects its advanced capabilities.
Visit Anthropic: Claude Sonnet 4AI-Powered
Leverages advanced AI technology to deliver cutting-edge capabilities and results.
Fast & Efficient
Optimized performance ensures quick results without compromising on quality.
Purpose-Built
Specifically designed for llms tasks and workflows.
Anthropic Model Timeline
1M tokens context
1M tokens context
1M tokens context
1M tokens context
Long-context context
200k tokens context
200k tokens context
200k tokens context
1,000k tokens context
200k tokens context
200k tokens context
1,000k tokens context
200k tokens context
200k tokens context
200k tokens context
200k tokens context
200k tokens context
Specifications
AI Evaluation
A premium coding model delivering professional-grade software engineering assistance. Strong on complex projects, debugging, and code architecture.
Pros
- Massive 1,000k token context
- Strong code generation and debugging
- Advanced logical reasoning
- Agent-ready with tool use
Cons
- Higher cost tier
- May lack creative flair
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