Open source focus
Open Source Alternatives to A2atalk
60 open source Voice AI options similar to A2atalk, 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.
LingseeVoice AITel Aviv, IsraelOpen source
Lucida AI46Artificial IntelligenceSan Francisco, United States$13.1MOpen source
Metadialogues15Conversational AIOpen source
Thiomi LughaEdTechOpen source
IntervyouAI AgentOpen source
Kyutai69Frontier AI LabParis, France$300.0MOpen source · Self-hostable
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
Cartesia64Voice AISan Francisco, United States$191.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Nomi57AI CopilotSan Francisco, United States$180.0MOpen source
Vocode50Open SourceSan Francisco, United States$3.8MOpen source · Self-hostable
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
Coqui48Voice AIBerlin, Germany$2.0MOpen source · Self-hostable
Saperly43Voice AISan Francisco, United States$2.0MOpen source
Cekura40Agentic AITel Aviv, IsraelOpen source
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Lionwire17Voice AIOpen source
Mirrorfly11Agentic AIChennai, IndiaOpen source
Convo10Voice AISan Francisco, United StatesOpen source
Fluentco9Voice AISan Francisco, United StatesOpen source
IbodycamVoice AIOpen source
GetpointVoice AITel Aviv, IsraelOpen source
- FunbuttonVoice AI
Open source
CallrichVoice AIOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Deepgram65NeocloudSan Francisco, United States$177.1MOpen source
Resemble AI55Voice AINew York, United States$36.5MOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
superwhisper17Artificial IntelligenceNew York, United StatesOpen source
Myfuturecoach17Career CoachingOpen source
Modelglass12AI InfrastructureSydney, AustraliaOpen source
SynchumanVoice AITel Aviv, IsraelOpen source
Google Cloud Text-to-SpeechVoice AIMountain View, United StatesOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
Weave70Voice AILehi, United StatesOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4MOpen source
Cluely58Agentic AISan Francisco, United StatesOpen source
Busuu56EdTechLondon, United Kingdom$18.2MOpen source
Meaning55Artificial IntelligenceTel Aviv, IsraelOpen source
Laurel54EdTechSan Francisco, United States$100.0MOpen source
EyeControl54HealthcareTel Aviv, Israel$20.0MOpen source
regard54HealthcareSan Francisco, United StatesOpen source
Gradium51EdTechSan Francisco, United States$79.0MOpen source
Momentic50EdTechSan Francisco, United States$16.5MOpen source
Black Forest Labs50EdTechSan Francisco, United States$611.0MOpen 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
Win-Win46EdTechTel Aviv, Israel$5.3MOpen source
Tutor Intelligence45EdTechNew York, United States$35.5MOpen source
Dante45Artificial Intelligence$1.5MOpen source
- OBoBot.ai45Conversational AITel Aviv, Israel$3.5M
Open source
Wayla41EdTechTel Aviv, Israel$2.9MOpen source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
Clara Ai40Conversational AISan Francisco, United StatesOpen source
Maesn40EdTechTel Aviv, Israel$4.0MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Lingsee | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Lucida AI | Artificial Intelligence | Open source | San Francisco, United States | $13.1M | 46 | |
| Metadialogues | Conversational AI | Open source | — | — | 15 | |
| Thiomi Lugha | EdTech | Open source | — | — | — | |
| Intervyou | AI Agent | Open source | — | — | — | |
| Kyutai | Frontier AI Lab | Open source · Self-hostable | Paris, France | $300.0M | 69 | |
| 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 | |
| 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 | |
| Vocode | Open Source | Open source · Self-hostable | San Francisco, United States | $3.8M | 50 | |
| COCognigy | Voice Agent | Open source | Düsseldorf, Germany | $156.5M | 50 | |
| Coqui | Voice AI | Open source · Self-hostable | Berlin, Germany | $2.0M | 48 | |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 | |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 | |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 | |
| Lionwire | Voice AI | Open source | — | — | 17 | |
| Mirrorfly | Agentic AI | Open source | Chennai, India | — | 11 | |
| Convo | Voice AI | Open source | San Francisco, United States | — | 10 | |
| Fluentco | Voice AI | Open source | San Francisco, United States | — | 9 | |
| Ibodycam | Voice AI | Open source | — | — | — | |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Voice AI | Open source | — | — | — | ||
| Callrich | Voice AI | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Deepgram | Neocloud | Open source | San Francisco, United States | $177.1M | 65 | |
| Resemble AI | Voice AI | Open source | New York, United States | $36.5M | 55 | |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 | |
| superwhisper | Artificial Intelligence | Open source | New York, United States | — | 17 | |
| Myfuturecoach | Career Coaching | Open source | — | — | 17 | |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 | |
| Synchuman | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Google Cloud Text-to-Speech | Voice AI | Open source | Mountain View, United States | — | — | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| Weave | Voice AI | Open source | Lehi, United States | — | 70 | |
| Genesys Cloud CX | Contact Center AI | Open source | Daly City, United States | $3.9B | 64 | |
| Rasa Technologies GmbH | Conversational AI | Open source | San Francisco, United States | $73.4M | 62 | |
| Cluely | Agentic AI | Open source | San Francisco, United States | — | 58 | |
| Busuu | EdTech | Open source | London, United Kingdom | $18.2M | 56 | |
| Meaning | Artificial Intelligence | Open source | Tel Aviv, Israel | — | 55 | |
| Laurel | EdTech | Open source | San Francisco, United States | $100.0M | 54 | |
| EyeControl | Healthcare | Open source | Tel Aviv, Israel | $20.0M | 54 | |
| regard | Healthcare | Open source | San Francisco, United States | — | 54 | |
| Gradium | EdTech | Open source | San Francisco, United States | $79.0M | 51 | |
| Momentic | EdTech | Open source | San Francisco, United States | $16.5M | 50 | |
| Black Forest Labs | EdTech | Open source | San Francisco, United States | $611.0M | 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 | |
| Win-Win | EdTech | Open source | Tel Aviv, Israel | $5.3M | 46 | |
| Tutor Intelligence | EdTech | Open source | New York, United States | $35.5M | 45 | |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 | |
| OBoBot.ai | Conversational AI | Open source | Tel Aviv, Israel | $3.5M | 45 | |
| Wayla | EdTech | Open source | Tel Aviv, Israel | $2.9M | 41 | |
| 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 | |
| Maesn | EdTech | Open source | Tel Aviv, Israel | $4.0M | 40 |