gh-jezweb-claude-skills-skills-google-gemini-api/references/generation-config.md

Generation Configuration Reference

Complete reference for all generation parameters.

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All Parameters

config: {
  temperature: number,        // 0.0-2.0 (default: 1.0)
  topP: number,              // 0.0-1.0 (default: 0.95)
  topK: number,              // 1-100+ (default: 40)
  maxOutputTokens: number,   // 1-65536
  stopSequences: string[],   // Stop at these strings
  responseMimeType: string,  // 'text/plain' | 'application/json'
  candidateCount: number,    // Usually 1
  thinkingConfig: {
    thinkingBudget: number   // Max thinking tokens
  }
}

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Parameter Guidelines

temperature

• 0.0: Deterministic, focused
• 1.0: Balanced (default)
• 2.0: Very creative, random

topP (nucleus sampling)

• 0.95: Default, good balance
• Lower = more focused

topK

• 40: Default
• Higher = more diversity

maxOutputTokens

• Always set this to prevent excessive generation
• Max: 65,536 tokens

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Use Cases

Factual tasks: temperature=0.0, topP=0.8 Creative tasks: temperature=1.2, topP=0.95 Code generation: temperature=0.3, topP=0.9

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Official Docs

https://ai.google.dev/gemini-api/docs/models/generative-models#model-parameters