Claude 3.7 Sonnet: A Comprehensive Review

Introduction to Claude 3.7 Sonnet

Claude 3.7 Sonnet has been released, and it's an upgrade from the already impressive Claude 3.5 Sonnet. As the best AI coding assistant available, it's essential to test its capabilities in actual coding projects. In this article, we'll explore how Claude 3.7 Sonnet performs in a real-world coding scenario.

This is the caption for the image 1 The benchmarks for Claude 3.7 Sonnet are impressive, with a 62.3% accuracy on the Sweet Bench verified, and 70.3% with custom scaffolding. This is significantly higher than other AI coding assistants, such as OpenAI's 103 mini and DeepSeek's R1.

Benchmarks and Comparison

This is the caption for the image 2 The benchmarks also show that Claude 3.7 Sonnet has improved significantly over its predecessor, Claude 3.5 Sonnet. The agentic tool use has increased by about 10% from 71% to 81.2%. This improvement is substantial and demonstrates the capabilities of Claude 3.7 Sonnet.

Actual Coding with Claude 3.7 Sonnet

This is the caption for the image 3 To test Claude 3.7 Sonnet's capabilities, a project was created using the web interface. The goal was to create a simple API route in the Go backend to retrieve all stored boxes from a Neon Postgres database. Claude 3.7 Sonnet was able to generate the necessary code, including the box struct and API endpoint.

Frontend Development

This is the caption for the image 4 The frontend development was also impressive, with Claude 3.7 Sonnet creating a boxes page to list all challenges, a boxid page with a code editor, and adding functionality to submit code to the backend. The resulting code was not perfect but was functional and demonstrated the capabilities of Claude 3.7 Sonnet.

Conclusion and Final Thoughts

This is the caption for the image 5 Overall, Claude 3.7 Sonnet has demonstrated its capabilities in actual coding projects. While it's not perfect, it's significantly better than its predecessor and other AI coding assistants. The breadth of its capabilities is impressive, and it's able to create multiple files at once with only minor errors.

This is the caption for the image 6 In conclusion, Claude 3.7 Sonnet is an impressive AI coding assistant that has demonstrated its capabilities in actual coding projects. Its accuracy, breadth, and ability to create functional code make it an essential tool for developers. While it's not perfect, it's significantly better than its predecessor and other AI coding assistants, and its capabilities will only continue to improve over time.