Open source focus
Open Source Alternatives to Character.AI
4 open source AI Companion options similar to Character.AI, 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.
GPT4All26Foundation ModelNew York, United StatesOpen-source, privacy-focused AI assistant that runs locally on your hardware.
Open source · Self-hostable
Rasa49Conversational AIBerlin, Germany$13.0MOpen-source conversational AI platform for building custom chatbots and virtual assistants.
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
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| GPT4AllOpen-source, privacy-focused AI assistant that runs locally on your hardware. | Foundation Model | Open source · Self-hostable | New York, United States | — | 26 | |
| RasaOpen-source conversational AI platform for building custom chatbots and virtual assistants. | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 | |
| 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 | |
| Enterprise Software | Open source | — | — | 7 |