prompting-claude-sonnet-5 changedbuild-with-claude/prompt-engineering/prompting-claude-sonnet-5
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7878Use a warm, collaborative tone. Acknowledge the user's framing before answering.
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81If you previously relied on `temperature` for stylistic variety, note that setting `temperature`, `top_p`, or `top_k` to a non-default value returns a 400 error on Claude Sonnet 5. This constraint is new for Sonnet-class models. Remove these parameters when migrating, and use system-prompt instructions to guide tone and variety instead.
81If you previously relied on `temperature` for stylistic variety, note that setting `temperature`, `top_p`, or `top_k` returns a 400 error on Claude Sonnet 5. This constraint is new for Sonnet-class models. Remove these parameters when migrating, and use system-prompt instructions to guide tone and variety instead.
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8383## Design and frontend defaults
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