Building Reliable Speech-to-Speech Voice Agents: Combining Gemini Live + LangChain Deep Agents

Short summary

LangChain engineer Caroline di Vittorio demonstrates combining Gemini Live API with LangChain Deep Agents to build responsive voice research agents. The hybrid approach solves the tradeoff between low-latency speech-to-speech models and complex reasoning by routing dialogue through Gemini Live while offloading research tasks to Deep Agents. Demo includes code walkthrough, LangSmith traces, and full GitHub implementation.

• •Combines Gemini Live for natural, low-latency conversation with LangChain Deep Agents for multi-step research
• •Solves voice agent tradeoff: achieves both responsive dialogue and accurate complex reasoning
• •Includes live demo, code walkthrough, async tool handling pattern, and open-source GitHub repository

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