Open source focus
Open Source Alternatives to Gutenacht
60 open source Voice AI options similar to Gutenacht, 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.
Cartesia64Voice AISan Francisco, United States$191.0MOpen source
Coqui48Voice AIBerlin, Germany$2.0MOpen source · Self-hostable
Resemble AI55Voice AINew York, United States$36.5MOpen source
- Anyvoice20Voice AI
Open source
Metadialogues15Conversational AIOpen source
IntervyouAI AgentOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen 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
Lucida AI46Artificial IntelligenceSan Francisco, United States$13.1MOpen source
Saperly43Voice AISan Francisco, United States$2.0MOpen source
Cekura40Agentic AITel Aviv, IsraelOpen source
Onepot.ai37Generative AITel Aviv, Israel$16.5MOpen source
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
SweetDream AI23AI GirlfriendIstanbul, TurkeyOpen source
Lionwire17Voice AIOpen source
Modelglass12AI InfrastructureSydney, AustraliaOpen source
evo.ninja12Agentic AIOpen source
Mirrorfly11Agentic AIChennai, IndiaOpen source
lIdée10AI Search EngineTel Aviv, IsraelOpen source
Convo10Voice AISan Francisco, United StatesOpen source
CallrichVoice AIOpen source
Google Cloud Text-to-SpeechVoice AIMountain View, United StatesOpen source
GetpointVoice AITel Aviv, IsraelOpen source
LingseeVoice AITel Aviv, IsraelOpen source
SynchumanVoice AITel Aviv, IsraelOpen source
IbodycamVoice AIOpen source
RevanipulseAgentic AIOpen source
Thiomi LughaEdTechOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
- FunbuttonVoice AI
Open source
ElevenLabs79AILondon, United Kingdom$1.6BOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
Algolia75Search TechnologySan Francisco, United States$334.2MOpen source
Coveo75AI Search EngineQuebec City, Canada$315.0MOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
Hightouch70Customer Data PlatformSan Francisco, United States$322.0MOpen source
Coframe70AI-Managed PlatformSan Francisco, United States$9.3MOpen source
Kyutai69Frontier AI LabParis, France$300.0MOpen source · Self-hostable
HeyGen68VideoSan Francisco, United StatesOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Pola.rs63AI Search EngineTel Aviv, Israel$26.0MOpen source
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4MOpen source
Chai Research58AI CompanionPalo Alto, United States$55.0MOpen source
Chai56AI ChatbotSan Francisco, United States$60.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Meaning55Artificial IntelligenceTel Aviv, IsraelOpen source
regard54HealthcareSan Francisco, United StatesOpen source
Anon53Agentic AI$6.5MOpen source
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
- OBOBOt AI49Conversational AITel Aviv, Israel$5.0M
Open source
bolt.new49AI Coding AssistantSan Francisco, United StatesOpen source
Sentry48AI Tools & Apps$1.0MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Cartesia | Voice AI | Open source | San Francisco, United States | $191.0M | 64 | |
| Coqui | Voice AI | Open source · Self-hostable | Berlin, Germany | $2.0M | 48 | |
| Resemble AI | Voice AI | Open source | New York, United States | $36.5M | 55 | |
| Voice AI | Open source | — | — | 20 | ||
| Metadialogues | Conversational AI | Open source | — | — | 15 | |
| Intervyou | AI Agent | 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 | |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 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 | |
| Lucida AI | Artificial Intelligence | Open source | San Francisco, United States | $13.1M | 46 | |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 | |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 | |
| Onepot.ai | Generative AI | Open source | Tel Aviv, Israel | $16.5M | 37 | |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 | |
| SweetDream AI | AI Girlfriend | Open source | Istanbul, Turkey | — | 23 | |
| Lionwire | Voice AI | Open source | — | — | 17 | |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 | |
| evo.ninja | Agentic AI | Open source | — | — | 12 | |
| Mirrorfly | Agentic AI | Open source | Chennai, India | — | 11 | |
| lIdée | AI Search Engine | Open source | Tel Aviv, Israel | — | 10 | |
| Convo | Voice AI | Open source | San Francisco, United States | — | 10 | |
| Callrich | Voice AI | Open source | — | — | — | |
| Google Cloud Text-to-Speech | Voice AI | Open source | Mountain View, United States | — | — | |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Lingsee | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Synchuman | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Ibodycam | Voice AI | Open source | — | — | — | |
| Revanipulse | Agentic AI | Open source | — | — | — | |
| Thiomi Lugha | EdTech | Open source | — | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Voice AI | Open source | — | — | — | ||
| ElevenLabs | AI | Open source | London, United Kingdom | $1.6B | 79 | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| Algolia | Search Technology | Open source | San Francisco, United States | $334.2M | 75 | |
| Coveo | AI Search Engine | Open source | Quebec City, Canada | $315.0M | 75 | |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 | |
| Hightouch | Customer Data Platform | Open source | San Francisco, United States | $322.0M | 70 | |
| Coframe | AI-Managed Platform | Open source | San Francisco, United States | $9.3M | 70 | |
| Kyutai | Frontier AI Lab | Open source · Self-hostable | Paris, France | $300.0M | 69 | |
| HeyGen | Video | Open source | San Francisco, United States | — | 68 | |
| Genesys Cloud CX | Contact Center AI | Open source | Daly City, United States | $3.9B | 64 | |
| Pola.rs | AI Search Engine | Open source | Tel Aviv, Israel | $26.0M | 63 | |
| Rasa Technologies GmbH | Conversational AI | Open source | San Francisco, United States | $73.4M | 62 | |
| Chai Research | AI Companion | Open source | Palo Alto, United States | $55.0M | 58 | |
| Chai | AI Chatbot | Open source | San Francisco, United States | $60.0M | 56 | |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 | |
| Meaning | Artificial Intelligence | Open source | Tel Aviv, Israel | — | 55 | |
| regard | Healthcare | Open source | San Francisco, United States | — | 54 | |
| Anon | Agentic AI | Open source | — | $6.5M | 53 | |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 | |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 | |
| OBOBOt AI | Conversational AI | Open source | Tel Aviv, Israel | $5.0M | 49 | |
| bolt.new | AI Coding Assistant | Open source | San Francisco, United States | — | 49 | |
| Sentry | AI Tools & Apps | Open source | — | $1.0M | 48 |