Open source focus
Open Source Alternatives to Reez.app
60 open source AI Chatbot options similar to Reez.app, 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.
Langchain-Chatchat11Open SourceOpen source · Self-hostable
- Aibest8AI Search Engine
Open source
Chaty.ai0AI AgentsGold Coast, Australia$1.0MOpen source
Harmony70AI AgentSan Francisco, United States$75.0MOpen source
LogicGate Risk Cloud68GRCChicago, United States$269.0MOpen source
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
Weights & Biases (W&B)63MLOpsSan Francisco, United States$521.0MOpen source
Chai Research63AI CompanionPalo Alto, United States$55.0MOpen source
Artemis Global Technologies62CybersecuritySan Francisco, United States$85.0MOpen source
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Civitai60Generative AISan Francisco, United States$5.1MOpen source · Self-hostable
Comet59MLOpsNew York, United States$75.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Qure.ai58HealthTechMumbai, India$144.2MOpen source
Langfuse GmbH58MLOpsBerlin, Germany$2.5MOpen source
April57FintechNew York, United States$78.0MOpen source
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
XPOZ55MediaTel Aviv, Israel$1.5MOpen source
Tot54Creative OperationsNew York, United States$7.6MOpen source
Leo54FintechNew York, United States$6.6MOpen source
EyeControl54HealthcareTel Aviv, Israel$20.0MOpen source
Merge Labs54Agentic AISan Francisco, United States$24.0MOpen source
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Booth.ai54Generative AITel Aviv, Israel$2.7MOpen source
Shadow Inc53AI AgentNew York, United StatesOpen source
BrowserUse52Agentic AISan Francisco, United States$17.0MOpen source · Self-hostable
Twelve Labs51Video AISan Francisco, United States$62.0MOpen source
SOMAREALITY50Artificial IntelligenceVienna, Austria$3.0MOpen source
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
Kai48Mental HealthNew York, United StatesOpen source
Zaraz46EnterpriseTel Aviv, Israel$2.0MOpen source
Dante45Artificial Intelligence$1.5MOpen source
Visionz Tech42Computer VisionTel Aviv, Israel$12.0MOpen source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
- Co Build40AI Collaboration Tools$8.5M
Open source
Noumena AI40Agentic AIתל אביב - יפו, IsraelOpen source
AI Automotive40Automotive AIToronto, CanadaOpen source
- RERefold AI39Customer Service AutomationLondon, United Kingdom$6.5M
Open source
Marketify38E-commerceTel Aviv, IsraelOpen source
CustomGPT35AI ChatbotTel Aviv, Israel$1.0MOpen source
SensifAI Health35HealthcareTel Aviv, IsraelOpen source
Artik35Social MediaOpen source
Catercore35AI InfrastructureSan Francisco, United StatesOpen source
Shoppy Fit35E-commerceTel Aviv, IsraelOpen source
Capably35Creative OperationsNew York, United States$12.0MOpen source
OnePot AI34Generative AISan Francisco, United States$13.0MOpen source
- NONova Sky33Drone TechnologyLondon, United Kingdom$29.5M
Open source
Opactor33Agentic AIOpen source
DeepAI33AI Image GenerationOpen source
Dig Robotics33RoboticsTel Aviv, IsraelOpen source
AIMLAPI30Machine LearningOpen source
Preuve AI29Agentic AITel Aviv, IsraelOpen source
DenovAI Biotech29Life SciencesRehovot, IsraelOpen source
Vinst29FoodTel Aviv, IsraelOpen source
Funnelyzer28E-commerceTel Aviv, IsraelOpen source
Gizzmo27MediaOpen source
GPT4All26Foundation ModelNew York, United StatesOpen source · Self-hostable
SweetDream AI23AI GirlfriendIstanbul, TurkeyOpen source
IAGO22Travel$200KOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 |
| AI Search Engine | Open source | — | — | 8 | |
| Chaty.ai | AI Agents | Open source | Gold Coast, Australia | $1.0M | 0 |
| Harmony | AI Agent | Open source | San Francisco, United States | $75.0M | 70 |
| LogicGate Risk Cloud | GRC | Open source | Chicago, United States | $269.0M | 68 |
| Lacentral | Frontier AI Lab | Open source | San Francisco, United States | $11.3B | 68 |
| Weights & Biases (W&B) | MLOps | Open source | San Francisco, United States | $521.0M | 63 |
| Chai Research | AI Companion | Open source | Palo Alto, United States | $55.0M | 63 |
| Artemis Global Technologies | Cybersecurity | Open source | San Francisco, United States | $85.0M | 62 |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 |
| Civitai | Generative AI | Open source · Self-hostable | San Francisco, United States | $5.1M | 60 |
| Comet | MLOps | Open source | New York, United States | $75.0M | 59 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Qure.ai | HealthTech | Open source | Mumbai, India | $144.2M | 58 |
| Langfuse GmbH | MLOps | Open source | Berlin, Germany | $2.5M | 58 |
| April | Fintech | Open source | New York, United States | $78.0M | 57 |
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |
| XPOZ | Media | Open source | Tel Aviv, Israel | $1.5M | 55 |
| Tot | Creative Operations | Open source | New York, United States | $7.6M | 54 |
| Leo | Fintech | Open source | New York, United States | $6.6M | 54 |
| EyeControl | Healthcare | Open source | Tel Aviv, Israel | $20.0M | 54 |
| Merge Labs | Agentic AI | Open source | San Francisco, United States | $24.0M | 54 |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 |
| Booth.ai | Generative AI | Open source | Tel Aviv, Israel | $2.7M | 54 |
| Shadow Inc | AI Agent | Open source | New York, United States | — | 53 |
| BrowserUse | Agentic AI | Open source · Self-hostable | San Francisco, United States | $17.0M | 52 |
| Twelve Labs | Video AI | Open source | San Francisco, United States | $62.0M | 51 |
| SOMAREALITY | Artificial Intelligence | Open source | Vienna, Austria | $3.0M | 50 |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 |
| Kai | Mental Health | Open source | New York, United States | — | 48 |
| Zaraz | Enterprise | Open source | Tel Aviv, Israel | $2.0M | 46 |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 |
| Visionz Tech | Computer Vision | Open source | Tel Aviv, Israel | $12.0M | 42 |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 |
| AI Collaboration Tools | Open source | — | $8.5M | 40 | |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 40 |
| AI Automotive | Automotive AI | Open source | Toronto, Canada | — | 40 |
| RERefold AI | Customer Service Automation | Open source | London, United Kingdom | $6.5M | 39 |
| Marketify | E-commerce | Open source | Tel Aviv, Israel | — | 38 |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 35 |
| SensifAI Health | Healthcare | Open source | Tel Aviv, Israel | — | 35 |
| Artik | Social Media | Open source | — | — | 35 |
| Catercore | AI Infrastructure | Open source | San Francisco, United States | — | 35 |
| Shoppy Fit | E-commerce | Open source | Tel Aviv, Israel | — | 35 |
| Capably | Creative Operations | Open source | New York, United States | $12.0M | 35 |
| OnePot AI | Generative AI | Open source | San Francisco, United States | $13.0M | 34 |
| NONova Sky | Drone Technology | Open source | London, United Kingdom | $29.5M | 33 |
| Opactor | Agentic AI | Open source | — | — | 33 |
| DeepAI | AI Image Generation | Open source | — | — | 33 |
| Dig Robotics | Robotics | Open source | Tel Aviv, Israel | — | 33 |
| AIMLAPI | Machine Learning | Open source | — | — | 30 |
| Preuve AI | Agentic AI | Open source | Tel Aviv, Israel | — | 29 |
| DenovAI Biotech | Life Sciences | Open source | Rehovot, Israel | — | 29 |
| Vinst | Food | Open source | Tel Aviv, Israel | — | 29 |
| Funnelyzer | E-commerce | Open source | Tel Aviv, Israel | — | 28 |
| Gizzmo | Media | Open source | — | — | 27 |
| GPT4All | Foundation Model | Open source · Self-hostable | New York, United States | — | 26 |
| SweetDream AI | AI Girlfriend | Open source | Istanbul, Turkey | — | 23 |
| IAGO | Travel | Open source | — | $200K | 22 |