#For real-time phone voice agents, is GPT-4o or GPT-4.1 better?

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willow parcelBOT
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AI-generated Answer for miarayhan

Short answer: GPT-4o (ideally GPT-4o-mini) is the better choice for real-time phone voice agents.

Why:

  • ElevenLabs recommends speed‑optimized models for live voice conversations and names GPT‑4o‑mini as an example for low‑latency use. (elevenlabs.io)
  • For call workflows like agent‑to‑agent transfer, ElevenLabs specifically recommends gpt‑4o or gpt‑4o‑mini due to better tool calling. (elevenlabs.io)
  • Use higher‑capacity models (e.g., GPT‑4 series) when task complexity outweighs latency constraints; otherwise, prioritize the faster 4o family for phone calls. (elevenlabs.io)
  • Both GPT‑4.1 and GPT‑4o are supported in ElevenLabs Conversational AI if you need to switch. (elevenlabs.io)

Sources:
Large Language Models (LLMs) | ElevenLabs Documentation
Agent-agent transfer | ElevenLabs Documentation
Large Language Models (LLMs) | ElevenLabs Documentation
Introduction - Conversational voice AI agents | ElevenLabs Documentation

thorny remnant
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great, and what about gpt 5?

willow parcelBOT
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AI-generated Answer for miarayhan

Short answer: GPT‑5 is available in ElevenLabs Conversational AI.

  • Availability and setup: You can select GPT‑5 (including mini/nano variants) for your agent in the Conversational AI dashboard; it’s also accessible via API and SDKs. The August 8, 2025 ElevenLabs blog confirms the integration is live. (elevenlabs.io)
  • SDK support: The August 11, 2025 docs changelog notes new SDK enums for “ChatGPT 5,” indicating official SDK-level support. (elevenlabs.io)
  • When to use it for phone agents: ElevenLabs’ guidance on choosing an LLM says to prioritize speed‑optimized models (e.g., GPT‑4o‑mini or Gemini Flash) when ultra‑low latency is the top requirement; pick more powerful models when you need stronger reasoning. GPT‑5 is presented in our blog as optimized for real‑time voice and better at complex tool‑calling/long, multi‑step tasks, so use it when reasoning and reliability outweigh absolute lowest latency. (elevenlabs.io)

If you want, tell me your latency/complexity targets and I’ll recommend a concrete setup based on those constraints.

Sources:
ElevenLabs — GPT-5 Available in ElevenLabs Conversational AI | ElevenLabs
August 11, 2025 | ElevenLabs Documentation
Large Language Models (LLMs) | ElevenLabs Documentation

proper geyser
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100x gemini 2.5 flash lite bro