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  • The following models are being deprecated and replaced with newer versions:
    • OpenAI Realtime models:
      • gpt-4o-realtime → replaced with gpt-realtime-1.5
      • gpt-4o-mini-realtime → replaced with gpt-realtime-mini
    • Cartesia Sonic models:
      • sonic-2 → replaced with sonic-3
      • sonic-turbo → replaced with sonic-3
    • After 4/3/2026, the deprecated models will no longer be available.