Open source focus
Open Source Alternatives to Horizonmark
60 open source Voice AI options similar to Horizonmark, 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.
Mirrorfly11Agentic AIChennai, IndiaOpen source
LetustalkVoice AIOpen source
DhvanixVoice AIBengaluru, IndiaOpen source
Saperly43Voice AISan Francisco, United States$2.0MOpen source
CallanoConversational AITel Aviv, IsraelOpen source
TelenowVoice AISan Francisco, United StatesOpen source
Aquotiq32Conversational AILouth, United KingdomOpen source
Lionwire17Voice AIOpen source
Mister WolfAgentic AITel Aviv, IsraelOpen source
RevochatConversational AIOpen source
- Chisp TechnologiesConversational AITel Aviv, Israel
Open source
XallarapConversational AIOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
Bluebutler42Customer Service AutomationTel Aviv, Israel$12.0MOpen source
Clara Ai40Conversational AISan Francisco, United StatesOpen source
Callbravo34Voice AITel Aviv, Israel$1.5MOpen source
Zenthic15Conversational AISan Francisco, United StatesOpen source
Darim14Conversational AIOpen source
CallrichVoice AIOpen source
GetpointVoice AITel Aviv, IsraelOpen source
PipclawAI AgentOpen source
ConveyaiConversational AITel Aviv, IsraelOpen source
MoriwaConversational AIOpen source
Weave70Voice AILehi, United StatesOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Nomi57AI CopilotSan Francisco, United States$180.0MOpen source
regard54HealthcareSan Francisco, United StatesOpen source
EyeControl54HealthcareTel Aviv, Israel$20.0MOpen source
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
- OBOBOt AI49Conversational AITel Aviv, Israel$5.0M
Open source
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
- SASales Interaction Agent47Agentic AISan Francisco, United States$5.0M
Open source
Dante45Artificial Intelligence$1.5MOpen source
- OBoBot.ai45Conversational AITel Aviv, Israel$3.5M
Open source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Cekura40Agentic AITel Aviv, IsraelOpen source
Plurai34Conversational AITel Aviv, IsraelOpen source
CogMe33HealthcareTel Aviv, IsraelOpen source
Thenvoi AI Ltd31Conversational AILondon, United KingdomOpen source
Metadialogues15Conversational AIOpen source
Appquest2Conversational AITel Aviv, IsraelOpen source
QmogConversational AIOpen source
IbodycamVoice AIOpen source
VoicevalueVoice AIOpen source
KaaiaConversational AITel Aviv, IsraelOpen source
ScalinaConversational AIOpen source
Resemble AI55Voice AINew York, United States$36.5MOpen source
Vocode50Open SourceSan Francisco, United States$3.8MOpen source · Self-hostable
Hyper44Conversational AISan Francisco, United States$12.3MOpen source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
FrontSpin38Sales TechnologySan Diego, United StatesOpen source
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Akacia35Conversational AITel Aviv, Israel$1.5MOpen source
Tavvo34Conversational AITel Aviv, Israel$4.0MOpen source
Corereflex22Customer Service AutomationTel Aviv, IsraelOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
Brieflow19Conversational AILondon, United KingdomOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Mirrorfly | Agentic AI | Open source | Chennai, India | — | 11 | |
| Letustalk | Voice AI | Open source | — | — | — | |
| Dhvanix | Voice AI | Open source | Bengaluru, India | — | — | |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 | |
| Callano | Conversational AI | Open source | Tel Aviv, Israel | — | — | |
| Telenow | Voice AI | Open source | San Francisco, United States | — | — | |
| Aquotiq | Conversational AI | Open source | Louth, United Kingdom | — | 32 | |
| Lionwire | Voice AI | Open source | — | — | 17 | |
| Mister Wolf | Agentic AI | Open source | Tel Aviv, Israel | — | — | |
| Revochat | Conversational AI | Open source | — | — | — | |
| Conversational AI | Open source | Tel Aviv, Israel | — | — | ||
| Xallarap | Conversational AI | Open source | — | — | — | |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 | |
| Bluebutler | Customer Service Automation | Open source | Tel Aviv, Israel | $12.0M | 42 | |
| Clara Ai | Conversational AI | Open source | San Francisco, United States | — | 40 | |
| Callbravo | Voice AI | Open source | Tel Aviv, Israel | $1.5M | 34 | |
| Zenthic | Conversational AI | Open source | San Francisco, United States | — | 15 | |
| Darim | Conversational AI | Open source | — | — | 14 | |
| Callrich | Voice AI | Open source | — | — | — | |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Pipclaw | AI Agent | Open source | — | — | — | |
| Conveyai | Conversational AI | Open source | Tel Aviv, Israel | — | — | |
| Moriwa | Conversational AI | Open source | — | — | — | |
| Weave | Voice AI | Open source | Lehi, United States | — | 70 | |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 | |
| 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 | |
| Nomi | AI Copilot | Open source | San Francisco, United States | $180.0M | 57 | |
| regard | Healthcare | Open source | San Francisco, United States | — | 54 | |
| EyeControl | Healthcare | Open source | Tel Aviv, Israel | $20.0M | 54 | |
| COCognigy | Voice Agent | Open source | Düsseldorf, Germany | $156.5M | 50 | |
| OBOBOt AI | Conversational AI | Open source | Tel Aviv, Israel | $5.0M | 49 | |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 | |
| SASales Interaction Agent | Agentic AI | Open source | San Francisco, United States | $5.0M | 47 | |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 | |
| OBoBot.ai | Conversational AI | Open source | Tel Aviv, Israel | $3.5M | 45 | |
| BLBlip | Voice AI | Open source | São Paulo, Brazil | $10.0M | 41 | |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 | |
| Plurai | Conversational AI | Open source | Tel Aviv, Israel | — | 34 | |
| CogMe | Healthcare | Open source | Tel Aviv, Israel | — | 33 | |
| Thenvoi AI Ltd | Conversational AI | Open source | London, United Kingdom | — | 31 | |
| Metadialogues | Conversational AI | Open source | — | — | 15 | |
| Appquest | Conversational AI | Open source | Tel Aviv, Israel | — | 2 | |
| Qmog | Conversational AI | Open source | — | — | — | |
| Ibodycam | Voice AI | Open source | — | — | — | |
| Voicevalue | Voice AI | Open source | — | — | — | |
| Kaaia | Conversational AI | Open source | Tel Aviv, Israel | — | — | |
| Scalina | Conversational AI | Open source | — | — | — | |
| Resemble AI | Voice AI | Open source | New York, United States | $36.5M | 55 | |
| Vocode | Open Source | Open source · Self-hostable | San Francisco, United States | $3.8M | 50 | |
| Hyper | Conversational AI | Open source | San Francisco, United States | $12.3M | 44 | |
| Tryagentically | Agentic AI | Open source | San Francisco, United States | — | 40 | |
| FrontSpin | Sales Technology | Open source | San Diego, United States | — | 38 | |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 | |
| Akacia | Conversational AI | Open source | Tel Aviv, Israel | $1.5M | 35 | |
| Tavvo | Conversational AI | Open source | Tel Aviv, Israel | $4.0M | 34 | |
| Corereflex | Customer Service Automation | Open source | Tel Aviv, Israel | — | 22 | |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 | |
| Brieflow | Conversational AI | Open source | London, United Kingdom | — | 19 |