Claude Sonnet 4
Claude Sonnet 4 is an artificial intelligence model developed by Anthropic, designed primarily for coding and software development assistance. It is part of Anthropic’s Claude family of large language models, which are trained to handle both natural language tasks and code-related functions.
In comparisons with other AI coding tools, Claude Sonnet 4 is positioned as a premium option with higher operational costs. When evaluated against alternatives such as Qwen3-Coder, it represents a more expensive choice for users seeking AI-assisted coding capabilities.