Open source focus

Open Source Alternatives to Reez.app

7 open source AI Companion options similar to Reez.app, 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.

View all alternatives to Reez.app →

Comfy Org53
AI Image Generation$30.0M
Comfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.
Open source
Litegen10
AI Infrastructure
An open-source, OpenAI-compatible proxy for AI image and video generation, routing across multiple providers with load balancing and cost tracking.
Open source
Rasa49
Conversational AIBerlin, Germany$13.0M
Open-source conversational AI platform for building custom chatbots and virtual assistants.
Open source · Self-hostable
GPT4All26
Foundation ModelNew York, United States
Open-source, privacy-focused AI assistant that runs locally on your hardware.
Open source · Self-hostable
Velorn12
AI Video Generation
AI-native video editing and generative production tools built around a creative timeline.
Open source
Firmgate7
Enterprise Software
Australian-owned, sovereign-built, open-source self-hosted intranet with AI-enabled enterprise modules.
Open source
Langchain-Chatchat10
Open Source
Open-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
Comfy OrgComfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.	AI Image Generation	Open source	—	$30.0M	53
LitegenAn open-source, OpenAI-compatible proxy for AI image and video generation, routing across multiple providers with load balancing and cost tracking.	AI Infrastructure	Open source	—	—	10
RasaOpen-source conversational AI platform for building custom chatbots and virtual assistants.	Conversational AI	Open source · Self-hostable	Berlin, Germany	$13.0M	49
GPT4AllOpen-source, privacy-focused AI assistant that runs locally on your hardware.	Foundation Model	Open source · Self-hostable	New York, United States	—	26
VelornAI-native video editing and generative production tools built around a creative timeline.	AI Video Generation	Open source	—	—	12
FirmgateAustralian-owned, sovereign-built, open-source self-hosted intranet with AI-enabled enterprise modules.	Enterprise Software	Open source	—	—	7
Langchain-ChatchatOpen-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.	Open Source	Open source · Self-hostable	—	—	10