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AI & ML · Concept

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The Responses API lets you control output length with text.verbosity. GPT-5.2 supports low, medium, and high, and defaults to medium.

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Syntax

client.responses.create({ model, input, text: { verbosity: "low" | "medium" | "high" } })

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  • Responses API
  • reasoning effort
  • GPT-5.2

Source: OpenAI API docs — full documentation. Checked 2026-11-03.