Open source focus
Open Source Alternatives to Replika Software, Inc.
60 open source Conversational AI options similar to Replika Software, Inc., ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
SweetDream AI22AI GirlfriendIstanbul, TurkeyOpen source
IAGO22Travel$200KOpen source
Brieflow19Conversational AILondon, United KingdomOpen source
Metadialogues15Conversational AIOpen source
Etherwaves AI14Conversational AIOpen source
evo.ninja12Agentic AIOpen source
Anxietyreset4Mental Health TechOpen source
DomulisConversational AILondon, United KingdomOpen source
XallarapConversational AIOpen source
EazycareHealthTechOpen source
- QmogConversational AI
Open source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Cartesia64Voice AISan Francisco, United States$191.0MOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Chai Research63AI CompanionPalo Alto, United States$55.0MOpen source
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4MOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Nomi57AI CopilotSan Francisco, United States$180.0MOpen source
Resemble AI55Voice AINew York, United States$36.5MOpen source
Meaning55Artificial IntelligenceTel Aviv, IsraelOpen source
Leo54FintechNew York, United States$6.6MOpen source
regard54HealthcareSan Francisco, United StatesOpen source
Voca.ai54SpeechTel Aviv, Israel$6.1MOpen source
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
Vocode50Open SourceSan Francisco, United States$3.8MOpen source · Self-hostable
- OBOBOt AI49Conversational AITel Aviv, Israel$5.0M
Open source
Coqui48Voice AIBerlin, Germany$2.0MOpen source · Self-hostable
Kai48Mental HealthNew York, United StatesOpen source
- SASales Interaction Agent47Agentic AISan Francisco, United States$5.0M
Open source
- OBoBot.ai45Conversational AITel Aviv, Israel$3.5M
Open source
Saperly43Voice AISan Francisco, United States$2.0MOpen source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
Clara Ai40Conversational AISan Francisco, United StatesOpen source
Cekura40Agentic AITel Aviv, IsraelOpen source
- RERefold AI39Customer Service AutomationLondon, United Kingdom$6.5M
Open source
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Plurai34Conversational AITel Aviv, IsraelOpen source
DeepAI33AI Image GenerationOpen source
CogMe33HealthcareTel Aviv, IsraelOpen source
Aquotiq32Conversational AILouth, United KingdomOpen source
Thenvoi AI Ltd31Conversational AILondon, United KingdomOpen source
GPT4All26Foundation ModelNew York, United StatesOpen source · Self-hostable
Recallguru21AI Search EngineOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
Anima-EY17EducationOpen source
Lionwire17Voice AIOpen source
Zenthic15Conversational AISan Francisco, United StatesOpen source
Michaelcondon14AI AgentOpen source
Darim14Conversational AIOpen source
Convo10Voice AISan Francisco, United StatesOpen source
Dante10Artificial Intelligence$1.5MOpen source
Fluentco9Voice AISan Francisco, United StatesOpen source
- Aibest8AI Search Engine
Open source
- PRPrivateGPT5AI Search Engine
Open source · Self-hostable
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 |
| SweetDream AI | AI Girlfriend | Open source | Istanbul, Turkey | — | 22 |
| IAGO | Travel | Open source | — | $200K | 22 |
| Brieflow | Conversational AI | Open source | London, United Kingdom | — | 19 |
| Metadialogues | Conversational AI | Open source | — | — | 15 |
| Etherwaves AI | Conversational AI | Open source | — | — | 14 |
| evo.ninja | Agentic AI | Open source | — | — | 12 |
| Anxietyreset | Mental Health Tech | Open source | — | — | 4 |
| Domulis | Conversational AI | Open source | London, United Kingdom | — | — |
| Xallarap | Conversational AI | Open source | — | — | — |
| Eazycare | HealthTech | Open source | — | — | — |
| Conversational AI | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 |
| Cartesia | Voice AI | Open source | San Francisco, United States | $191.0M | 64 |
| Genesys Cloud CX | Contact Center AI | Open source | Daly City, United States | $3.9B | 64 |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Chai Research | AI Companion | Open source | Palo Alto, United States | $55.0M | 63 |
| Rasa Technologies GmbH | Conversational AI | Open source | San Francisco, United States | $73.4M | 62 |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 |
| Nomi | AI Copilot | Open source | San Francisco, United States | $180.0M | 57 |
| Resemble AI | Voice AI | Open source | New York, United States | $36.5M | 55 |
| Meaning | Artificial Intelligence | Open source | Tel Aviv, Israel | — | 55 |
| Leo | Fintech | Open source | New York, United States | $6.6M | 54 |
| regard | Healthcare | Open source | San Francisco, United States | — | 54 |
| Voca.ai | Speech | Open source | Tel Aviv, Israel | $6.1M | 54 |
| COCognigy | Voice Agent | Open source | Düsseldorf, Germany | $156.5M | 50 |
| Vocode | Open Source | Open source · Self-hostable | San Francisco, United States | $3.8M | 50 |
| OBOBOt AI | Conversational AI | Open source | Tel Aviv, Israel | $5.0M | 49 |
| Coqui | Voice AI | Open source · Self-hostable | Berlin, Germany | $2.0M | 48 |
| Kai | Mental Health | Open source | New York, United States | — | 48 |
| SASales Interaction Agent | Agentic AI | Open source | San Francisco, United States | $5.0M | 47 |
| OBoBot.ai | Conversational AI | Open source | Tel Aviv, Israel | $3.5M | 45 |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 |
| BLBlip | Voice AI | Open source | São Paulo, Brazil | $10.0M | 41 |
| Tryagentically | Agentic AI | Open source | San Francisco, United States | — | 40 |
| Clara Ai | Conversational AI | Open source | San Francisco, United States | — | 40 |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 |
| RERefold AI | Customer Service Automation | Open source | London, United Kingdom | $6.5M | 39 |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 |
| Plurai | Conversational AI | Open source | Tel Aviv, Israel | — | 34 |
| DeepAI | AI Image Generation | Open source | — | — | 33 |
| CogMe | Healthcare | Open source | Tel Aviv, Israel | — | 33 |
| Aquotiq | Conversational AI | Open source | Louth, United Kingdom | — | 32 |
| Thenvoi AI Ltd | Conversational AI | Open source | London, United Kingdom | — | 31 |
| GPT4All | Foundation Model | Open source · Self-hostable | New York, United States | — | 26 |
| Recallguru | AI Search Engine | Open source | — | — | 21 |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 |
| Anima-EY | Education | Open source | — | — | 17 |
| Lionwire | Voice AI | Open source | — | — | 17 |
| Zenthic | Conversational AI | Open source | San Francisco, United States | — | 15 |
| Michaelcondon | AI Agent | Open source | — | — | 14 |
| Darim | Conversational AI | Open source | — | — | 14 |
| Convo | Voice AI | Open source | San Francisco, United States | — | 10 |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 10 |
| Fluentco | Voice AI | Open source | San Francisco, United States | — | 9 |
| AI Search Engine | Open source | — | — | 8 | |
| PRPrivateGPT | AI Search Engine | Open source · Self-hostable | — | — | 5 |