Open source focus
Open Source Alternatives to Rethink
60 open source AI Agent options similar to Rethink, 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.
- OBoBot.ai45Conversational AITel Aviv, Israel$3.5M
Open source
Clara Ai40Conversational AISan Francisco, United StatesOpen source
Thenvoi AI Ltd31Conversational AILondon, United KingdomOpen source
Etherwaves AI14Conversational AIOpen source
evo.ninja12Agentic AIOpen source
Appquest2Conversational AITel Aviv, IsraelOpen source
- CallrichVoice AI
Open source
DomulisConversational AILondon, United KingdomOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Voca.ai54SpeechTel Aviv, Israel$6.1MOpen source
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
Vocode50Open SourceSan Francisco, United States$3.8MOpen source · Self-hostable
- OBOBOt AI49Conversational AITel Aviv, Israel$5.0M
Open source
- SASales Interaction Agent47Agentic AISan Francisco, United States$5.0M
Open source
Hyper44Conversational AISan Francisco, United States$12.3MOpen source
Saperly43Voice AISan Francisco, United States$2.0MOpen source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Tryagentically40Agentic AISan Francisco, United StatesOpen source
Symbl.ai36Voice AISan Francisco, United States$6.4MOpen source
Aengus35Conversational AISan Francisco, United StatesOpen source
Akacia35Conversational AITel Aviv, Israel$1.5MOpen source
Tavvo34Conversational AITel Aviv, Israel$4.0MOpen source
Callbravo34Voice AITel Aviv, Israel$1.5MOpen source
Plurai34Conversational AITel Aviv, IsraelOpen source
Aquotiq32Conversational AILouth, United KingdomOpen source
Magick AI28Agentic AIOpen source
Raincheck AI28Agentic AISan Francisco, United StatesOpen source
Corereflex22Customer Service AutomationTel Aviv, IsraelOpen source
Jako.ai20EnterpriseTel Aviv, IsraelOpen source
Lionwire17Voice AIOpen source
Metadialogues15Conversational AIOpen source
Zenthic15Conversational AISan Francisco, United StatesOpen source
Onenexa14Conversational AIOpen source
Axscore7Customer Service AutomationTel Aviv, IsraelOpen source
Afcor4Customer Service AutomationTel Aviv, IsraelOpen source
JottableCustomer Service AutomationSan Francisco, United StatesOpen source
GetpointVoice AITel Aviv, IsraelOpen source
ZentokConversational AITel Aviv, IsraelOpen source
KaaiaConversational AITel Aviv, IsraelOpen source
RitonaAI AgentTel Aviv, IsraelOpen source
XallarapConversational AIOpen source
- LounehCustomer Service AutomationTel Aviv, Israel
Open source
OlyzaAgentic AISan Francisco, United StatesOpen source
KedmahConversational AITel Aviv, IsraelOpen source
Instant365Conversational AITel Aviv, IsraelOpen source
RonivaConversational AITel Aviv, IsraelOpen source
TelenowVoice AISan Francisco, United StatesOpen source
RevochatConversational AIOpen source
VyceraConversational AITel Aviv, IsraelOpen source
ScalinaConversational AIOpen source
IbodycamVoice AIOpen source
Coworker.aiHR TechOpen source
GoconduitAgentic AISan Francisco, United StatesOpen source
RevulaConversational AITel Aviv, IsraelOpen source
OceanyxConversational AITel Aviv, IsraelOpen source
SubioConversational AITel Aviv, IsraelOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| OBoBot.ai | Conversational AI | Open source | Tel Aviv, Israel | $3.5M | 45 |
| Clara Ai | Conversational AI | Open source | San Francisco, United States | — | 40 |
| Thenvoi AI Ltd | Conversational AI | Open source | London, United Kingdom | — | 31 |
| Etherwaves AI | Conversational AI | Open source | — | — | 14 |
| evo.ninja | Agentic AI | Open source | — | — | 12 |
| Appquest | Conversational AI | Open source | Tel Aviv, Israel | — | 2 |
| Voice AI | Open source | — | — | — | |
| Domulis | Conversational AI | Open source | London, United Kingdom | — | — |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 |
| 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 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 |
| Voca.ai | Speech | Open source | Tel Aviv, Israel | $6.1M | 54 |
| COCognigy | Voice Agent | Open source | Düsseldorf, Germany | $156.5M | 50 |
| Vocode | Open Source | Open source · Self-hostable | San Francisco, United States | $3.8M | 50 |
| 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 |
| Hyper | Conversational AI | Open source | San Francisco, United States | $12.3M | 44 |
| Saperly | Voice AI | Open source | San Francisco, United States | $2.0M | 43 |
| BLBlip | Voice AI | Open source | São Paulo, Brazil | $10.0M | 41 |
| Tryagentically | Agentic AI | Open source | San Francisco, United States | — | 40 |
| Symbl.ai | Voice AI | Open source | San Francisco, United States | $6.4M | 36 |
| Aengus | Conversational AI | Open source | San Francisco, United States | — | 35 |
| Akacia | Conversational AI | Open source | Tel Aviv, Israel | $1.5M | 35 |
| Tavvo | Conversational AI | Open source | Tel Aviv, Israel | $4.0M | 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 |
| Magick AI | Agentic AI | Open source | — | — | 28 |
| Raincheck AI | Agentic AI | Open source | San Francisco, United States | — | 28 |
| Corereflex | Customer Service Automation | Open source | Tel Aviv, Israel | — | 22 |
| Jako.ai | Enterprise | Open source | Tel Aviv, Israel | — | 20 |
| Lionwire | Voice AI | Open source | — | — | 17 |
| Metadialogues | Conversational AI | Open source | — | — | 15 |
| Zenthic | Conversational AI | Open source | San Francisco, United States | — | 15 |
| Onenexa | Conversational AI | Open source | — | — | 14 |
| Axscore | Customer Service Automation | Open source | Tel Aviv, Israel | — | 7 |
| Afcor | Customer Service Automation | Open source | Tel Aviv, Israel | — | 4 |
| Jottable | Customer Service Automation | Open source | San Francisco, United States | — | — |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — |
| Zentok | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Kaaia | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Ritona | AI Agent | Open source | Tel Aviv, Israel | — | — |
| Xallarap | Conversational AI | Open source | — | — | — |
| Customer Service Automation | Open source | Tel Aviv, Israel | — | — | |
| Olyza | Agentic AI | Open source | San Francisco, United States | — | — |
| Kedmah | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Instant365 | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Roniva | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Telenow | Voice AI | Open source | San Francisco, United States | — | — |
| Revochat | Conversational AI | Open source | — | — | — |
| Vycera | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Scalina | Conversational AI | Open source | — | — | — |
| Ibodycam | Voice AI | Open source | — | — | — |
| Coworker.ai | HR Tech | Open source | — | — | — |
| Goconduit | Agentic AI | Open source | San Francisco, United States | — | — |
| Revula | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Oceanyx | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Subio | Conversational AI | Open source | Tel Aviv, Israel | — | — |