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Baseten LLM plugin guide

How to use the Baseten LLM plugin for LiveKit Agents.

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OverviewQuick referenceInstallationAuthenticationModel selection UsageParametersAdditional resources
Available in
Python

Overview

This plugin allows you to use Baseten as an LLM provider for your voice agents.

LiveKit Inference

Some Baseten models are also available in LiveKit Inference, with billing and integration handled automatically. See the docs for more information.

Quick reference

This section includes a basic usage example and some reference material. For links to more detailed documentation, see Additional resources.

Installation

Install the plugin from PyPI:

uv add "livekit-agents[baseten]~=1.2"

Authentication

The Baseten plugin requires a Baseten API key.

Set the following in your .env file:

BASETEN_API_KEY=<your-baseten-api-key>

Model selection

LiveKit Agents integrates with Baseten's Model API, which supports the most popular open source LLMs with per-token billing. To use the Model API, you only need to activate the model and then copy its name.

  1. Activate your desired model in the Model API
  2. Copy its name from your model API endpoint dialog in your model library
  3. Use the model name in the plugin (e.g. "openai/gpt-oss-120b")

Usage

Use a Baseten LLM in your AgentSession or as a standalone LLM service. For example, you can use this LLM in the Voice AI quickstart.

from livekit.plugins import baseten


session = AgentSession(
    llm=baseten.LLM(
        model="openai/gpt-oss-120b"
    ),
    # ... tts, stt, vad, turn_detection, etc.
)

Parameters

This section describes some of the available parameters. For a complete reference of all available parameters, see the plugin reference.

modelstringOptionalDefault: meta-llama/Llama-4-Maverick-17B-128E-Instruct

Name of the LLM model to use from the Model API. See Model selection for more information.

Additional resources

The following resources provide more information about using Baseten with LiveKit Agents.

Icon for Python package

Python package

The livekit-plugins-baseten package on PyPI.

Plugin reference

Reference for the Baseten LLM plugin.

GitHub repo

View the source or contribute to the LiveKit Baseten LLM plugin.

Baseten docs

Baseten docs.

Voice AI quickstart

Get started with LiveKit Agents and Baseten.

Baseten TTS

Baseten TTS integration guide.

Baseten STT

Baseten STT integration guide.

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