Open source focus
Open Source Alternatives to FantasyGF
60 open source Voice AI options similar to FantasyGF, 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.
Nomi57AI CopilotSan Francisco, United States$180.0MOpen source
GirlfriendGPT18AI$140KOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
Chai56AI ChatbotSan Francisco, United States$60.0MOpen source
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
Dante45Artificial Intelligence$1.5MOpen source
Brieflow19Conversational AILondon, United KingdomOpen source
Metadialogues15Conversational AIOpen source
Darim14Conversational AIOpen source
Etherwaves AI14Conversational AIOpen source
evo.ninja12Agentic AIOpen source
XallarapConversational AIOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
DomulisConversational AILondon, United KingdomOpen source
Thiomi LughaEdTechOpen source
MoriwaConversational AIOpen source
PipclawAI AgentOpen source
RevochatConversational AIOpen source
QmogConversational AIOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
Cartesia64Voice AISan Francisco, United States$191.0MOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Chai Research58AI CompanionPalo Alto, United States$55.0MOpen 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
- 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
- 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
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Plurai34Conversational AITel Aviv, IsraelOpen source
Callbravo34Voice AITel Aviv, Israel$1.5MOpen source
DeepAI33AI Image GenerationSan Francisco, United StatesOpen source
Aquotiq32Conversational AILouth, United KingdomOpen source
Thenvoi AI Ltd31Conversational AILondon, United KingdomOpen source
SweetDream AI25AI GirlfriendIstanbul, TurkeyOpen source
IAGO22Travel$200KOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
Lionwire17Voice AIOpen source
Zenthic15Conversational AISan Francisco, United StatesOpen source
Mirrorfly11Agentic AIChennai, IndiaOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
Anxietyreset4Mental Health TechOpen source
Answerarc4Conversational AITel Aviv, IsraelOpen source
Appquest2Conversational AITel Aviv, IsraelOpen source
IbodycamVoice AIOpen source
TelenowVoice AISan Francisco, United StatesOpen source
GetpointVoice AITel Aviv, IsraelOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Nomi | AI Copilot | Open source | San Francisco, United States | $180.0M | 57 | |
| GirlfriendGPT | AI | Open source | — | $140K | 18 | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| Chai | AI Chatbot | Open source | San Francisco, United States | $60.0M | 56 | |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 | |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 | |
| Brieflow | Conversational AI | Open source | London, United Kingdom | — | 19 | |
| Metadialogues | Conversational AI | Open source | — | — | 15 | |
| Darim | Conversational AI | Open source | — | — | 14 | |
| Etherwaves AI | Conversational AI | Open source | — | — | 14 | |
| evo.ninja | Agentic AI | Open source | — | — | 12 | |
| Xallarap | Conversational AI | Open source | — | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Domulis | Conversational AI | Open source | London, United Kingdom | — | — | |
| Thiomi Lugha | EdTech | Open source | — | — | — | |
| Moriwa | Conversational AI | Open source | — | — | — | |
| Pipclaw | AI Agent | Open source | — | — | — | |
| Revochat | Conversational AI | Open source | — | — | — | |
| Qmog | Conversational AI | Open source | — | — | — | |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 | |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 | |
| 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 | |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 | |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 | |
| Chai Research | AI Companion | Open source | Palo Alto, United States | $55.0M | 58 | |
| 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 | |
| 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 | |
| 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 | |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 | |
| Plurai | Conversational AI | Open source | Tel Aviv, Israel | — | 34 | |
| Callbravo | Voice AI | Open source | Tel Aviv, Israel | $1.5M | 34 | |
| DeepAI | AI Image Generation | Open source | San Francisco, United States | — | 33 | |
| Aquotiq | Conversational AI | Open source | Louth, United Kingdom | — | 32 | |
| Thenvoi AI Ltd | Conversational AI | Open source | London, United Kingdom | — | 31 | |
| SweetDream AI | AI Girlfriend | Open source | Istanbul, Turkey | — | 25 | |
| IAGO | Travel | Open source | — | $200K | 22 | |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 | |
| Lionwire | Voice AI | Open source | — | — | 17 | |
| Zenthic | Conversational AI | Open source | San Francisco, United States | — | 15 | |
| Mirrorfly | Agentic AI | Open source | Chennai, India | — | 11 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Anxietyreset | Mental Health Tech | Open source | — | — | 4 | |
| Answerarc | Conversational AI | Open source | Tel Aviv, Israel | — | 4 | |
| Appquest | Conversational AI | Open source | Tel Aviv, Israel | — | 2 | |
| Ibodycam | Voice AI | Open source | — | — | — | |
| Telenow | Voice AI | Open source | San Francisco, United States | — | — | |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — |