Open source focus
Open Source Alternatives to TransAI
60 open source Voice AI options similar to TransAI, 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.
DeepL82Artificial IntelligenceCologne, Germany$300.0MOpen source
Microsoft Translator15Machine TranslationRedmond, United StatesOpen source
Cartesia64Voice AISan Francisco, United States$191.0MOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Nomi57AI CopilotSan Francisco, United States$180.0MOpen source
Lucida AI46Artificial IntelligenceSan Francisco, United States$7.0MOpen source
Saperly43Voice AISan Francisco, United States$2.0MOpen source
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
Lionwire17Voice AIOpen source
Convo10Voice AISan Francisco, United StatesOpen source
- FunbuttonVoice AI
Open source
IntervyouAI AgentOpen source
- CallrichVoice AI
Open source
IbodycamVoice AIOpen source
GetpointVoice AITel Aviv, IsraelOpen 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
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Voca.ai54SpeechTel Aviv, Israel$6.1MOpen 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
Cekura40Agentic AITel Aviv, IsraelOpen source
Metadialogues15Conversational AIOpen source
Mirrorfly11Agentic AIOpen source
SynchumanVoice AITel Aviv, IsraelOpen source
LingseeVoice AITel Aviv, IsraelOpen source
Deepgram65NeocloudSan Francisco, United States$177.1MOpen source
Meaning55Artificial IntelligenceTel Aviv, IsraelOpen source
Resemble AI55Voice AINew York, United States$36.5MOpen source
EyeControl54HealthcareTel Aviv, Israel$20.0MOpen source
SweetDream AI23AI GirlfriendIstanbul, TurkeyOpen source
superwhisper17Artificial IntelligenceNew York, United StatesOpen source
evo.ninja12Agentic AIOpen source
- Aibest8AI Search Engine
Open source
- AimicrophoneVoice AITel Aviv, Israel
Open source
Google Cloud Text-to-SpeechVoice AIMountain View, United StatesOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Weave70Voice AILehi, United StatesOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Chai Research63AI CompanionPalo Alto, United States$55.0MOpen source
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4MOpen source
Cluely58Agentic AISan Francisco, United StatesOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
regard54HealthcareSan Francisco, United StatesOpen 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
Recall AI46Personal AISan Francisco, United States$10.3MOpen source
- OBoBot.ai45Conversational AITel Aviv, Israel$3.5M
Open source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Raindrop40AI Search EngineMoscow, Russia$32.8MOpen source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
Noumena AI40Agentic AIתל אביב - יפו, IsraelOpen source
Clara Ai40Conversational AISan Francisco, United StatesOpen source
Mycroft AI38Voice AssistantKansas City, United States$4.0MOpen source · Self-hostable
FrontSpin38Sales TechnologySan Diego, United StatesOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| DeepL | Artificial Intelligence | Open source | Cologne, Germany | $300.0M | 82 |
| Microsoft Translator | Machine Translation | Open source | Redmond, United States | — | 15 |
| Cartesia | Voice AI | Open source | San Francisco, United States | $191.0M | 64 |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 |
| Nomi | AI Copilot | Open source | San Francisco, United States | $180.0M | 57 |
| Lucida AI | Artificial Intelligence | Open source | San Francisco, United States | $7.0M | 46 |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 |
| Lionwire | Voice AI | Open source | — | — | 17 |
| Convo | Voice AI | Open source | San Francisco, United States | — | 10 |
| Voice AI | Open source | — | — | — | |
| Intervyou | AI Agent | Open source | — | — | — |
| Voice AI | Open source | — | — | — | |
| Ibodycam | Voice AI | Open source | — | — | — |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — |
| 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 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Voca.ai | Speech | Open source | Tel Aviv, Israel | $6.1M | 54 |
| 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 |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 |
| Metadialogues | Conversational AI | Open source | — | — | 15 |
| Mirrorfly | Agentic AI | Open source | — | — | 11 |
| Synchuman | Voice AI | Open source | Tel Aviv, Israel | — | — |
| Lingsee | Voice AI | Open source | Tel Aviv, Israel | — | — |
| Deepgram | Neocloud | Open source | San Francisco, United States | $177.1M | 65 |
| Meaning | Artificial Intelligence | Open source | Tel Aviv, Israel | — | 55 |
| Resemble AI | Voice AI | Open source | New York, United States | $36.5M | 55 |
| EyeControl | Healthcare | Open source | Tel Aviv, Israel | $20.0M | 54 |
| SweetDream AI | AI Girlfriend | Open source | Istanbul, Turkey | — | 23 |
| superwhisper | Artificial Intelligence | Open source | New York, United States | — | 17 |
| evo.ninja | Agentic AI | Open source | — | — | 12 |
| AI Search Engine | Open source | — | — | 8 | |
| Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Google Cloud Text-to-Speech | Voice AI | Open source | Mountain View, United States | — | — |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 |
| Weave | Voice AI | Open source | Lehi, United States | — | 70 |
| Genesys Cloud CX | Contact Center AI | Open source | Daly City, United States | $3.9B | 64 |
| 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 |
| Cluely | Agentic AI | Open source | San Francisco, United States | — | 58 |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| regard | Healthcare | Open source | San Francisco, United States | — | 54 |
| 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 |
| Recall AI | Personal AI | Open source | San Francisco, United States | $10.3M | 46 |
| OBoBot.ai | Conversational AI | Open source | Tel Aviv, Israel | $3.5M | 45 |
| BLBlip | Voice AI | Open source | São Paulo, Brazil | $10.0M | 41 |
| Raindrop | AI Search Engine | Open source | Moscow, Russia | $32.8M | 40 |
| Tryagentically | Agentic AI | Open source | San Francisco, United States | — | 40 |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 40 |
| Clara Ai | Conversational AI | Open source | San Francisco, United States | — | 40 |
| Mycroft AI | Voice Assistant | Open source · Self-hostable | Kansas City, United States | $4.0M | 38 |
| FrontSpin | Sales Technology | Open source | San Diego, United States | — | 38 |