Open Source Alternatives to Sumago
7 open source Conversational AI options similar to Sumago, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
Rasa49Conversational AIBerlin, Germany$13.0MOpen-source conversational AI platform for building custom chatbots and virtual assistants.
Open source · Self-hostable
Vocode50Open SourceSan Francisco, United States$3.8MOpen-source library for building hyper-realistic voice agents and conversational AI applications.
Open source · Self-hostable
Coqui48Voice AIBerlin, Germany$2.0MOpen-source AI models for voice synthesis, translation, and TTS.
Open source · Self-hostable
GPT4All26Foundation ModelNew York, United StatesOpen-source, privacy-focused AI assistant that runs locally on your hardware.
Open source · Self-hostable
Langchain-Chatchat10Open SourceOpen-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.
Open source · Self-hostable
- Firmgate7Enterprise Software
Australian-owned, sovereign-built, open-source self-hosted intranet with AI-enabled enterprise modules.
Open source
Kyutai68Frontier AI LabParis, France$300.0MA non-profit AI research lab focused on open science and developing advanced multimodal and voice AI models.
Open source · Self-hostable