Open source focus
Open Source Alternatives to Kabuten
60 open source AI Search Engine options similar to Kabuten, 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.
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
GPT Researcher13Agentic AIOpen source
LlamaAi (DefiLlama)10FintechOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
FastclaudeAI Search EngineOpen source
KnowqlAI Search EngineOpen source
DataforeveryoneAI Search EngineSan Francisco, United StatesOpen source
PostintelligencecontractsLegalTechOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Qualifire32Generative AIOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
QUBRID30Cloud InfrastructureOpen source
Gizzmo27MediaOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Vibranium Dome23AI AgentsOpen source · Self-hostable
Fundamental Research Labs22Frontier AI LabSan Francisco, United States$10.0MOpen source
Quantty15Foundation ModelOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
- ThebabrainAI Search Engine
Open source
ZenlawyerLegalTechTel Aviv, IsraelOpen source
Coworker.aiHR TechOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
StewardshipintelligenceAI Tools & AppsOpen source
RedbuyE-commerceOpen source
UseacreAI Search EngineOpen source
CasezLegalTechTel Aviv, IsraelOpen source
BiblelensAI Search EngineOpen source
TheclearpointAgentic AIOpen source
Auto InflateGenerative AIOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
TanakasunAI OrchestrationOpen source
OnelytixInnovationOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
Dust65Agentic AIParis, France$15.0MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
H2O.ai64Foundation ModelMountain View, United States$228.1MOpen source · Self-hostable
TwelveLabs64Video IntelligenceSan Francisco, United States$68.0MOpen source
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Langfuse GmbH58MLOpsBerlin, Germany$2.5MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
Market Beyond57RetailTechNew York, United States$4.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| Knowql | AI Search Engine | Open source | — | — | — | |
| Dataforeveryone | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Postintelligencecontracts | LegalTech | Open source | — | — | — | |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| 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 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 | |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 | |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 | |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 | |
| Qualifire | Generative AI | Open source | — | — | 32 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| QUBRID | Cloud Infrastructure | Open source | — | — | 30 | |
| Gizzmo | Media | Open source | — | — | 27 | |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 | |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 | |
| Fundamental Research Labs | Frontier AI Lab | Open source | San Francisco, United States | $10.0M | 22 | |
| Quantty | Foundation Model | Open source | — | — | 15 | |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| AI Search Engine | Open source | — | — | — | ||
| Zenlawyer | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| Coworker.ai | HR Tech | Open source | — | — | — | |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — | |
| Stewardshipintelligence | AI Tools & Apps | Open source | — | — | — | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Useacre | AI Search Engine | Open source | — | — | — | |
| Casez | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Theclearpoint | Agentic AI | Open source | — | — | — | |
| Auto Inflate | Generative AI | Open source | — | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Tanakasun | AI Orchestration | Open source | — | — | — | |
| Onelytix | Innovation | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 | |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 | |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 | |
| H2O.ai | Foundation Model | Open source · Self-hostable | Mountain View, United States | $228.1M | 64 | |
| TwelveLabs | Video Intelligence | Open source | San Francisco, United States | $68.0M | 64 | |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 | |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 | |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Langfuse GmbH | MLOps | Open source | Berlin, Germany | $2.5M | 58 | |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 | |
| Market Beyond | RetailTech | Open source | New York, United States | $4.0M | 57 | |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |