Open source focus
Open Source Alternatives to Lemni
60 open source Customer Service options similar to Lemni, 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.
- LILivePerson18AINew York, United States
Open source
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Chaty.ai45AI AgentsGold Coast, Australia$1.0MOpen source
Magick AI28Agentic AIOpen source
Mirrorfly11Agentic AIChennai, IndiaOpen source
ElevenLabs79AILondon, United Kingdom$1.6BOpen source
Coframe70AI-Managed PlatformSan Francisco, United States$9.3MOpen source
Vapi65Voice AISan Francisco, United States$74.3MOpen source
Deepgram65NeocloudSan Francisco, United States$177.1MOpen source
Bland64Voice AISan Francisco, United States$51.0MOpen source
LlamaIndex64Agentic AIUnited StatesOpen source
PineAI63Artificial IntelligenceSan Francisco, USA$63.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Rasa Technologies GmbH62Conversational AISan Francisco, United States$73.4MOpen source
Fiddler Labs, Inc.62MLOpsMountain View, United States$39.0MOpen source
FingerprintJS61Customer ServiceSan Francisco, United States$88.0MOpen source
Quotient AI56Artificial IntelligenceBoston, United States$5.5MOpen source
Kata.ai55Customer ServiceJakarta, Indonesia$3.5MOpen source
- AGAgentDesk / BrowserTools54Recruitment Tech$17.0M
Open source
Arthur51Agentic AISan Francisco, United States$10.0MOpen source
- COCognigy50Voice AgentDüsseldorf, Germany$156.5M
Open source
Coqui48Voice AIBerlin, Germany$2.0MOpen source · Self-hostable
Saperly43Voice AISan Francisco, United States$2.0MOpen source
CiaoDott43HealthcareMilan, Italy$1.6MOpen source
- BLBlip41Voice AISão Paulo, Brazil$10.0M
Open source
Cekura40Agentic AITel Aviv, IsraelOpen source
Mycroft AI38Voice AssistantKansas City, United States$4.0MOpen source · Self-hostable
Hume AI25Voice AIUnited StatesOpen source
Regai24Customer ServiceLondon, United KingdomOpen source
Fiducia AI18Artificial IntelligenceNew York, United StatesOpen source
Lionwire17Voice AIOpen source
Botpress10Customer ServiceMontreal, CanadaOpen source
Google Cloud AI8AI Foundation & ComputeMountain View, United StatesOpen source
GetpointVoice AITel Aviv, IsraelOpen source
LetustalkVoice AIOpen source
CallrichVoice AIOpen source
Google Cloud Text-to-SpeechVoice AIMountain View, United StatesOpen source
IbodycamVoice AIOpen source
DhvanixVoice AIBengaluru, IndiaOpen source
ENERZAiVoice AgentSeoul, South KoreaOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
Mastra75Agentic AISan Francisco, United States$35.5MOpen source · Self-hostable
Airbyte71Data IntegrationSan Francisco, United States$181.0MOpen source · Self-hostable
Birdeye70Reputation ManagementPalo Alto, United States$85.0MOpen source
Qdrant70Vector DatabaseBerlin, Germany$96.5MOpen source · Self-hostable
Weave70Voice AILehi, United StatesOpen source
Kyutai69Frontier AI LabParis, France$300.0MOpen source · Self-hostable
HeyGen68VideoSan Francisco, United States$42.5MOpen source
Zendesk65Customer ServiceSan Francisco, United States$500KOpen source
Arize AI65AI ObservabilityBerkeley, United StatesOpen source
Genesys Cloud CX64Contact Center AIDaly City, United States$3.9BOpen source
Cartesia64Voice AISan Francisco, United States$191.0MOpen source
Trigger Device Inc63AI AgentsLondon, United Kingdom$16.5MOpen source · Self-hostable
Candid Intelligence63Construction TechSan Francisco, United States$207.0MOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Embedder (YC S25)61AI AgentsSan Francisco, United States$625.0MOpen source
Gitar61Artificial IntelligenceSan Francisco, USA$9.0MOpen source
Apify60Web ScrapingPrague, Czech Republic$3.5MOpen source
Steel.dev58Developer ToolsTel Aviv, Israel$17.0MOpen source · Self-hostable
Agency58Agentic AISan Francisco, United States$20.0MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| LILivePerson | AI | Open source | New York, United States | — | 18 | |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 | |
| Chaty.ai | AI Agents | Open source | Gold Coast, Australia | $1.0M | 45 | |
| Magick AI | Agentic AI | Open source | — | — | 28 | |
| Mirrorfly | Agentic AI | Open source | Chennai, India | — | 11 | |
| ElevenLabs | AI | Open source | London, United Kingdom | $1.6B | 79 | |
| Coframe | AI-Managed Platform | Open source | San Francisco, United States | $9.3M | 70 | |
| Vapi | Voice AI | Open source | San Francisco, United States | $74.3M | 65 | |
| Deepgram | Neocloud | Open source | San Francisco, United States | $177.1M | 65 | |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 | |
| LlamaIndex | Agentic AI | Open source | United States | — | 64 | |
| PineAI | Artificial Intelligence | Open source | San Francisco, USA | $63.0M | 63 | |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 | |
| Rasa Technologies GmbH | Conversational AI | Open source | San Francisco, United States | $73.4M | 62 | |
| Fiddler Labs, Inc. | MLOps | Open source | Mountain View, United States | $39.0M | 62 | |
| FingerprintJS | Customer Service | Open source | San Francisco, United States | $88.0M | 61 | |
| Quotient AI | Artificial Intelligence | Open source | Boston, United States | $5.5M | 56 | |
| Kata.ai | Customer Service | Open source | Jakarta, Indonesia | $3.5M | 55 | |
| AGAgentDesk / BrowserTools | Recruitment Tech | Open source | — | $17.0M | 54 | |
| Arthur | Agentic AI | Open source | San Francisco, United States | $10.0M | 51 | |
| 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 | |
| CiaoDott | Healthcare | Open source | Milan, Italy | $1.6M | 43 | |
| BLBlip | Voice AI | Open source | São Paulo, Brazil | $10.0M | 41 | |
| Cekura | Agentic AI | Open source | Tel Aviv, Israel | — | 40 | |
| Mycroft AI | Voice Assistant | Open source · Self-hostable | Kansas City, United States | $4.0M | 38 | |
| Hume AI | Voice AI | Open source | United States | — | 25 | |
| Regai | Customer Service | Open source | London, United Kingdom | — | 24 | |
| Fiducia AI | Artificial Intelligence | Open source | New York, United States | — | 18 | |
| Lionwire | Voice AI | Open source | — | — | 17 | |
| Botpress | Customer Service | Open source | Montreal, Canada | — | 10 | |
| Google Cloud AI | AI Foundation & Compute | Open source | Mountain View, United States | — | 8 | |
| Getpoint | Voice AI | Open source | Tel Aviv, Israel | — | — | |
| Letustalk | Voice AI | Open source | — | — | — | |
| Callrich | Voice AI | Open source | — | — | — | |
| Google Cloud Text-to-Speech | Voice AI | Open source | Mountain View, United States | — | — | |
| Ibodycam | Voice AI | Open source | — | — | — | |
| Dhvanix | Voice AI | Open source | Bengaluru, India | — | — | |
| ENERZAi | Voice Agent | Open source | Seoul, South Korea | — | — | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| Mastra | Agentic AI | Open source · Self-hostable | San Francisco, United States | $35.5M | 75 | |
| Airbyte | Data Integration | Open source · Self-hostable | San Francisco, United States | $181.0M | 71 | |
| Birdeye | Reputation Management | Open source | Palo Alto, United States | $85.0M | 70 | |
| Qdrant | Vector Database | Open source · Self-hostable | Berlin, Germany | $96.5M | 70 | |
| Weave | Voice AI | Open source | Lehi, United States | — | 70 | |
| Kyutai | Frontier AI Lab | Open source · Self-hostable | Paris, France | $300.0M | 69 | |
| HeyGen | Video | Open source | San Francisco, United States | $42.5M | 68 | |
| Zendesk | Customer Service | Open source | San Francisco, United States | $500K | 65 | |
| Arize AI | AI Observability | Open source | Berkeley, United States | — | 65 | |
| Genesys Cloud CX | Contact Center AI | Open source | Daly City, United States | $3.9B | 64 | |
| Cartesia | Voice AI | Open source | San Francisco, United States | $191.0M | 64 | |
| Trigger Device Inc | AI Agents | Open source · Self-hostable | London, United Kingdom | $16.5M | 63 | |
| Candid Intelligence | Construction Tech | Open source | San Francisco, United States | $207.0M | 63 | |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 | |
| Embedder (YC S25) | AI Agents | Open source | San Francisco, United States | $625.0M | 61 | |
| Gitar | Artificial Intelligence | Open source | San Francisco, USA | $9.0M | 61 | |
| Apify | Web Scraping | Open source | Prague, Czech Republic | $3.5M | 60 | |
| Steel.dev | Developer Tools | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 58 | |
| Agency | Agentic AI | Open source | San Francisco, United States | $20.0M | 58 |