Open source focus
Open Source Alternatives to Zeppa
60 open source AI Search Engine options similar to Zeppa, 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.
DataforeveryoneAI Search EngineSan Francisco, United StatesOpen source
GPT Researcher13Agentic AIOpen source
- ThebabrainAI Search Engine
Open source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
LlamaAi (DefiLlama)10FintechOpen source
42research4AI Search EngineTel Aviv, IsraelOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
KnowqlAI Search EngineOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
Coworker.aiHR TechOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
PostintelligencecontractsLegalTechOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
PaperswanAI Search EngineSan Francisco, United StatesOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Dust65Agentic AIParis, France$15.0MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Langfuse GmbH58MLOpsBerlin, Germany$2.5MOpen source
- MIMintlify / mcpt57Developer ToolsSan Francisco, United States
Open source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
Apideck46API PlatformUnknown, UnknownOpen source
Taskade46SpaceTechNew York, United States$1.0MOpen source
Seek AI46AI Coding AssistantTel Aviv, IsraelOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Adot43E-commerceSan Francisco, United StatesOpen source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
- Why-Health42Productivity
Open source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
Noumena AI40Agentic AIתל אביב - יפו, IsraelOpen source
Supernova37Developer ToolsSan Francisco, United States$129.2MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
CustomGPT35AI ChatbotTel Aviv, Israel$1.0MOpen source
GrackerAI33Agentic SEOTel Aviv, IsraelOpen source
Qualifire32Generative AIOpen source
AIMLAPI30Machine LearningOpen source
MemGPT28Foundation ModelOpen source
Vibranium Dome23AI AgentsOpen source · Self-hostable
Fundamental Research Labs22Frontier AI LabSan Francisco, United States$10.0MOpen source
Langbase20Agentic AISan Francisco, United StatesOpen source
- Meares17Conversational AI
Open source
Quantty15Foundation ModelOpen source
WebWright11API PlatformOpen source
- POPostgres MCP10DatabaseSan Francisco, United States
Open source
Helixaai8Foundation ModelOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Dataforeveryone | AI Search Engine | Open source | San Francisco, United States | — | — |
| GPT Researcher | Agentic AI | Open source | — | — | 13 |
| AI Search Engine | Open source | — | — | — | |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 |
| 42research | AI Search Engine | Open source | Tel Aviv, Israel | — | 4 |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 |
| Knowql | AI Search Engine | Open source | — | — | — |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — |
| Coworker.ai | HR Tech | Open source | — | — | — |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — |
| Postintelligencecontracts | LegalTech | Open source | — | — | — |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — |
| Paperswan | AI Search Engine | Open source | San Francisco, United States | — | — |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Langfuse GmbH | MLOps | Open source | Berlin, Germany | $2.5M | 58 |
| MIMintlify / mcpt | Developer Tools | Open source | San Francisco, United States | — | 57 |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 |
| Apideck | API Platform | Open source | Unknown, Unknown | — | 46 |
| Taskade | SpaceTech | Open source | New York, United States | $1.0M | 46 |
| Seek AI | AI Coding Assistant | Open source | Tel Aviv, Israel | — | 46 |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 |
| Adot | E-commerce | Open source | San Francisco, United States | — | 43 |
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 |
| Productivity | Open source | — | — | 42 | |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 40 |
| Supernova | Developer Tools | Open source | San Francisco, United States | $129.2M | 37 |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 35 |
| GrackerAI | Agentic SEO | Open source | Tel Aviv, Israel | — | 33 |
| Qualifire | Generative AI | Open source | — | — | 32 |
| AIMLAPI | Machine Learning | Open source | — | — | 30 |
| MemGPT | Foundation Model | Open source | — | — | 28 |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |
| Fundamental Research Labs | Frontier AI Lab | Open source | San Francisco, United States | $10.0M | 22 |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 |
| Conversational AI | Open source | — | — | 17 | |
| Quantty | Foundation Model | Open source | — | — | 15 |
| WebWright | API Platform | Open source | — | — | 11 |
| POPostgres MCP | Database | Open source | San Francisco, United States | — | 10 |
| Helixaai | Foundation Model | Open source | — | — | 8 |