Open source focus
Open Source Alternatives to Heartfeltradio
60 open source Voice AI options similar to Heartfeltradio, 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
Resemble AI55Voice AINew York, United States$36.5MOpen source
Coqui48Voice AIBerlin, Germany$2.0MOpen source · Self-hostable
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Theo AI30AI Tools & AppsTel Aviv, Israel$6.4MOpen source
LiveitallAgentic AIOpen source
BugaboohaGenerative AITel Aviv, IsraelOpen source
- AimicrophoneVoice AITel Aviv, Israel
Open source
CohartcocoGenerative AIOpen source
SteliausercontentGenerative AITel Aviv, IsraelOpen source
RevanipulseAgentic AIOpen source
FwrapGenerative AITel Aviv, IsraelOpen source
ThecraftyrabbitGenerative AIOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$32.1BOpen source
Algolia75Search TechnologySan Francisco, United States$334.2MOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
TwelveLabs64Video IntelligenceSan Francisco, United States$68.0MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Pola.rs63AI Search EngineTel Aviv, Israel$26.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
- BRBria56Generative AITel Aviv, Israel$130.5M
Open source
Meaning55Artificial IntelligenceTel Aviv, IsraelOpen source
Nevona54Generative AISan Francisco, United StatesOpen source
regard54HealthcareSan Francisco, United StatesOpen source
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Apricot52AI Tools & AppsSan Francisco, United States$14.4MOpen source
Vocode50Open SourceSan Francisco, United States$3.8MOpen source · Self-hostable
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
- OBOBOt AI49Conversational AITel Aviv, Israel$5.0M
Open source
- 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
Saperly43Voice AISan Francisco, United States$2.0MOpen source
SuperPop42Generative AISan Francisco, United StatesOpen source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
Clara Ai40Conversational AISan Francisco, United StatesOpen source
Ann Education40Education$1.0MOpen source
Postiz37Agentic AITel Aviv, Israel$1.0MOpen source
Melissa34Customer Data PlatformTel Aviv, Israel$2.0MOpen source
Callbravo34Voice AITel Aviv, Israel$1.5MOpen source
Plurai34Conversational AITel Aviv, IsraelOpen source
Aquotiq32Conversational AILouth, United KingdomOpen source
Thenvoi AI Ltd31Conversational AILondon, United KingdomOpen source
Vambe31Generative AITel Aviv, Israel$14.0MOpen source
Magick AI28Agentic AIOpen source
Raincheck AI28Agentic AISan Francisco, United StatesOpen source
Hume AI25Voice AIUnited StatesOpen source
Reelkey21Generative AIOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
- Anyvoice20Voice AI
Open source
Brieflow19Conversational AILondon, United KingdomOpen source
Lionwire17Voice AIOpen source
Metadialogues15Conversational AIOpen source
Zenthic15Conversational AISan Francisco, United StatesOpen source
Etherwaves AI14Conversational AIOpen source
evo.ninja12Agentic AIOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Cartesia | Voice AI | Open source | San Francisco, United States | $191.0M | 64 |
| Resemble AI | Voice AI | Open source | New York, United States | $36.5M | 55 |
| Coqui | Voice AI | Open source · Self-hostable | Berlin, Germany | $2.0M | 48 |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 |
| Theo AI | AI Tools & Apps | Open source | Tel Aviv, Israel | $6.4M | 30 |
| Liveitall | Agentic AI | Open source | — | — | — |
| Bugabooha | Generative AI | Open source | Tel Aviv, Israel | — | — |
| Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Cohartcoco | Generative AI | Open source | — | — | — |
| Steliausercontent | Generative AI | Open source | Tel Aviv, Israel | — | — |
| Revanipulse | Agentic AI | Open source | — | — | — |
| Fwrap | Generative AI | Open source | Tel Aviv, Israel | — | — |
| Thecraftyrabbit | Generative AI | Open source | — | — | — |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $32.1B | 76 |
| Algolia | Search Technology | Open source | San Francisco, United States | $334.2M | 75 |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 |
| TwelveLabs | Video Intelligence | Open source | San Francisco, United States | $68.0M | 64 |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 |
| 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 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 |
| BRBria | Generative AI | Open source | Tel Aviv, Israel | $130.5M | 56 |
| Meaning | Artificial Intelligence | Open source | Tel Aviv, Israel | — | 55 |
| Nevona | Generative AI | Open source | San Francisco, United States | — | 54 |
| regard | Healthcare | Open source | San Francisco, United States | — | 54 |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 |
| Apricot | AI Tools & Apps | Open source | San Francisco, United States | $14.4M | 52 |
| Vocode | Open Source | Open source · Self-hostable | San Francisco, United States | $3.8M | 50 |
| COCognigy | Voice Agent | Open source | Düsseldorf, Germany | $156.5M | 50 |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 |
| OBOBOt AI | Conversational AI | Open source | Tel Aviv, Israel | $5.0M | 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 |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 |
| SuperPop | Generative AI | Open source | San Francisco, United States | — | 42 |
| 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 |
| Ann Education | Education | Open source | — | $1.0M | 40 |
| Postiz | Agentic AI | Open source | Tel Aviv, Israel | $1.0M | 37 |
| Melissa | Customer Data Platform | Open source | Tel Aviv, Israel | $2.0M | 34 |
| Callbravo | Voice AI | Open source | Tel Aviv, Israel | $1.5M | 34 |
| Plurai | Conversational AI | Open source | Tel Aviv, Israel | — | 34 |
| Aquotiq | Conversational AI | Open source | Louth, United Kingdom | — | 32 |
| Thenvoi AI Ltd | Conversational AI | Open source | London, United Kingdom | — | 31 |
| Vambe | Generative AI | Open source | Tel Aviv, Israel | $14.0M | 31 |
| Magick AI | Agentic AI | Open source | — | — | 28 |
| Raincheck AI | Agentic AI | Open source | San Francisco, United States | — | 28 |
| Hume AI | Voice AI | Open source | United States | — | 25 |
| Reelkey | Generative AI | Open source | — | — | 21 |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 |
| Voice AI | Open source | — | — | 20 | |
| Brieflow | Conversational AI | Open source | London, United Kingdom | — | 19 |
| Lionwire | Voice AI | Open source | — | — | 17 |
| Metadialogues | Conversational AI | Open source | — | — | 15 |
| Zenthic | Conversational AI | Open source | San Francisco, United States | — | 15 |
| Etherwaves AI | Conversational AI | Open source | — | — | 14 |
| evo.ninja | Agentic AI | Open source | — | — | 12 |