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Documentation Index

Fetch the complete documentation index at: https://docs.retellai.com/llms.txt

Use this file to discover all available pages before exploring further.

  • The following models are being deprecated and replaced with newer versions:
    • Claude models:
      • claude-4.0-sonnet → replaced with claude-4.6-sonnet
    • Gemini models:
      • gemini-2.0-flash → replaced with gemini-3.0-flash
      • gemini-2.0-flash-lite → replaced with gemini-3.1-flash-lite
      • gemini-2.5-flash → replaced with gemini-3.0-flash
    • These models are no longer available. On 5/25/2026, they will be automatically migrated to their replacements.