42 Best Open-Source Voice Agents in 2026 (Ranked by GitHub Activity)

Open-source Python SDK and AI gateway for calling 100+ LLMs through a unified OpenAI-compatible interface

Unsloth Studio is a web UI for training and running open models like Qwen, DeepSeek, gpt-oss and Gemma locally.

Open Source framework for voice and multimodal conversational AI

A framework for building realtime voice AI agents 🤖🎙️📹

Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.

Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured

Open-source Java library with unified APIs for integrating LLMs and vector databases into applications

Open-source speech recognition toolkit for offline, streaming, and edge ASR, VAD, punctuation, and diarization

An Industrial-Level Controllable and Efficient Zero-Shot Text-To-Speech System

An MCP-based chatbot

Buzz transcribes and translates audio offline on your personal computer. Powered by OpenAI's Whisper.

WhisperX: Automatic Speech Recognition with Word-level Timestamps (& Diarization)

structured outputs for llms

Harness LLMs with Multi-Agent Programming

Open-source LLM router and cost optimizer with an OpenAI-compatible proxy

The original local LLM interface. Text, vision, tool-calling, training, and more. 100% offline.

Jarvis AI Assistant - Voice-powered AI assistant for Mac

OpenAI ChatGPT, GPT-5, GPT-Image-1, Whisper API clients for Go

Open-source Gradio and React WebUI for multiple TTS engines, extensions, and Silly Tavern integration

The best way to create, deploy, and share MCP Servers

AI agents running research on single-GPU nanochat training automatically

SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]

AI agent microservice

Foundational Models for State-of-the-Art Speech and Text Translation

A generative speech model for daily dialogue.

EmotiVoice 😊: a Multi-Voice and Prompt-Controlled TTS Engine

Gorilla: Training and Evaluating LLMs for Function Calls (Tool Calls)

AppAgent: Multimodal Agents as Smartphone Users, an LLM-based multimodal agent framework designed to operate smartphone apps.

A fast multimodal LLM for real-time voice

Python framework for LLM chat, structured output, function calling, RAG, and agent chains

A versatile workflow automation platform to create, organize, and execute AI workflows, from a single LLM to complex AI-driven workflows.

The open source platform for AI-native application development.

An Optimized Speech-to-Text Pipeline for the Whisper Model Supporting Multiple Inference Engine

Open-source, self-hosted AI assistant API compatible with OpenAI and supporting LLMs, RAG, and tools

Create and converse with customizable AI characters in real time on web, mobile, and terminal

Action library for AI Agent

Call any LLM with a single API. Zero dependencies.

OpenAI-compatible Python client that can call any LLM

Local LLM-powered search aggregator with recursive web tools and no API keys

Turbopilot is an open source large-language-model based code completion engine that runs locally on CPU

AudioGPT: Understanding and Generating Speech, Music, Sound, and Talking Head