How to use Claude Sonnet 4 for prompts
Claude Sonnet 4 is a chat model from Anthropic. Start with a concrete outcome, supply the relevant source context, and define the required format. For prompts, keep evaluation criteria stable so you can compare revisions fairly.
Claude Sonnet 4 quality checklist
Review the output for factual support, instruction compliance, consistency, and production readiness. Results can vary with prompt specificity and chat task complexity. Compare the result with an alternative model when the task is consequential or when output quality is difficult to measure automatically.