Open source focus
Open Source Alternatives to Chunkchat
60 open source AI Chatbot options similar to Chunkchat, 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.
CustomGPT46AI ChatbotTel Aviv, Israel$1.0MOpen source
Denser AIAI ChatbotTel Aviv, IsraelOpen source
- MOMoonshot AI69Frontier AI LabBeijing, China$250.0M
Open source
Plane53Project ManagementSan Francisco, United States$4.0MOpen source
Supernova37Developer ToolsSan Francisco, United States$129.2MOpen source
Recallguru21AI Search EngineOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
- PRPrivateGPT5AI Search Engine
Open source · Self-hostable
42research4AI Search EngineTel Aviv, IsraelOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
RevochatConversational AIOpen source
CowpokeAI AgentOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
LwaiGenerative AIOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
RawqConversational AITel Aviv, IsraelOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$32.1BOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Dust65Agentic AIParis, France$15.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Market Beyond57RetailTechNew York, United States$4.0MOpen source
- MIMintlify / mcpt57Developer ToolsSan Francisco, United States
Open source
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
Julius AI55Analytics PlatformSan Francisco, United States$20.5MOpen source
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Keep47EnterpriseSan Francisco, United States$2.5MOpen source · Self-hostable
Apideck46API PlatformUnknown, UnknownOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Seek AI46AI Coding AssistantTel Aviv, IsraelOpen source
Dante45Artificial Intelligence$1.5MOpen source
- Why-Health42Productivity
Open source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Raindrop40AI Search EngineMoscow, Russia$32.8MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Qualifire32Generative AIOpen source
GPT4All26Foundation ModelNew York, United StatesOpen source · Self-hostable
Vibranium Dome23AI AgentsOpen source · Self-hostable
Langbase20Agentic AISan Francisco, United StatesOpen source
- Meares17Conversational AI
Open source
Augment Code13EnterpriseUnited StatesOpen source
GPT Researcher13Agentic AIOpen source
WebWright11API PlatformOpen source
- POPostgres MCP10DatabaseSan Francisco, United States
Open source
LlamaAi (DefiLlama)10FintechOpen source
DocsGPT8Open SourceOpen source · Self-hostable
Answerarc4Conversational AITel Aviv, IsraelOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
StudyboltEdTechTel Aviv, IsraelOpen source
DataforeveryoneAI Search EngineSan Francisco, United StatesOpen source
Coworker.aiHR TechOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 46 |
| Denser AI | AI Chatbot | Open source | Tel Aviv, Israel | — | — |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $250.0M | 69 |
| Plane | Project Management | Open source | San Francisco, United States | $4.0M | 53 |
| Supernova | Developer Tools | Open source | San Francisco, United States | $129.2M | 37 |
| Recallguru | AI Search Engine | Open source | — | — | 21 |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 |
| PRPrivateGPT | AI Search Engine | Open source · Self-hostable | — | — | 5 |
| 42research | AI Search Engine | Open source | Tel Aviv, Israel | — | 4 |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — |
| Revochat | Conversational AI | Open source | — | — | — |
| Cowpoke | AI Agent | Open source | — | — | — |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — |
| Lwai | Generative AI | Open source | — | — | — |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — |
| Rawq | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $32.1B | 76 |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| Lacentral | Frontier AI Lab | Open source | San Francisco, United States | $11.3B | 68 |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Market Beyond | RetailTech | Open source | New York, United States | $4.0M | 57 |
| MIMintlify / mcpt | Developer Tools | Open source | San Francisco, United States | — | 57 |
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| Julius AI | Analytics Platform | Open source | San Francisco, United States | $20.5M | 55 |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Keep | Enterprise | Open source · Self-hostable | San Francisco, United States | $2.5M | 47 |
| Apideck | API Platform | Open source | Unknown, Unknown | — | 46 |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 |
| Seek AI | AI Coding Assistant | Open source | Tel Aviv, Israel | — | 46 |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 |
| Productivity | Open source | — | — | 42 | |
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 |
| Raindrop | AI Search Engine | Open source | Moscow, Russia | $32.8M | 40 |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 |
| Qualifire | Generative AI | Open source | — | — | 32 |
| GPT4All | Foundation Model | Open source · Self-hostable | New York, United States | — | 26 |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 |
| Conversational AI | Open source | — | — | 17 | |
| Augment Code | Enterprise | Open source | United States | — | 13 |
| GPT Researcher | Agentic AI | Open source | — | — | 13 |
| WebWright | API Platform | Open source | — | — | 11 |
| POPostgres MCP | Database | Open source | San Francisco, United States | — | 10 |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 |
| DocsGPT | Open Source | Open source · Self-hostable | — | — | 8 |
| Answerarc | Conversational AI | Open source | Tel Aviv, Israel | — | 4 |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 |
| Studybolt | EdTech | Open source | Tel Aviv, Israel | — | — |
| Dataforeveryone | AI Search Engine | Open source | San Francisco, United States | — | — |
| Coworker.ai | HR Tech | Open source | — | — | — |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — |