Open source focus
Open Source Alternatives to Hugebrain
60 open source AI Search Engine options similar to Hugebrain, 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.
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
GPT Researcher13Agentic AIOpen source
EvolvinglabAgentic AIOpen source
Noumena AI35Agentic AIתל אביב - יפו, IsraelOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
DowjoFoundation ModelOpen source
HainexusFoundation ModelOpen source
Tosly.onlineAgentic AIOpen source
BiblelensAI Search EngineOpen source
RedbuyE-commerceOpen source
BieniekAgentic AIOpen source
CybernomicFoundation ModelOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
Anon53Agentic AI$6.5MOpen source
Zed46Agentic AISan Francisco, United States$95.5MOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Melodocs18Foundation ModelOpen source
BarakudaInnovation LabOpen source
PaperswanAI Search EngineSan Francisco, United StatesOpen source
FastclaudeAI Search EngineOpen source
WulverstoneFoundation ModelOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
Geo PlusAgentic AITel Aviv, IsraelOpen source
IntelagentsiaAI Search EngineOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
TripvaletTravel TechTel Aviv, IsraelOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Dust65Agentic AIParis, France$15.0MOpen source
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Nomic AI59AI Infrastructure StackNew York City, United States$19.0MOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Brave Search API52AI Search EngineSan Francisco, United StatesOpen source
Taskade49SpaceTechNew York, United States$1.0MOpen source
Recall AI46Personal AISan Francisco, United States$10.3MOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Twin43Agentic AISan Francisco, United StatesOpen source
- Why-Health42Productivity
Open source
Raindrop40AI Search EngineMoscow, Russia$32.8MOpen source
Qualifire32Generative AIOpen source
MemGPT28Foundation ModelOpen 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
Langbase20Agentic AISan Francisco, United StatesOpen source
Search House AI14AI Search EngineTel Aviv, IsraelOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
lIdée10AI Search EngineTel Aviv, IsraelOpen source
LlamaAi (DefiLlama)10FintechOpen source
Agentradio7AI Coding AssistantOpen source
KeyboardsignalGenerative AIOpen source
KnowqlAI Search EngineOpen source
RevochatConversational AIOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| Evolvinglab | Agentic AI | Open source | — | — | — | |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 35 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Dowjo | Foundation Model | Open source | — | — | — | |
| Hainexus | Foundation Model | Open source | — | — | — | |
| Tosly.online | Agentic AI | Open source | — | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Bieniek | Agentic AI | Open source | — | — | — | |
| Cybernomic | Foundation Model | Open source | — | — | — | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 | |
| Anon | Agentic AI | Open source | — | $6.5M | 53 | |
| Zed | Agentic AI | Open source | San Francisco, United States | $95.5M | 46 | |
| 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 | |
| Melodocs | Foundation Model | Open source | — | — | 18 | |
| Barakuda | Innovation Lab | Open source | — | — | — | |
| Paperswan | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| Wulverstone | Foundation Model | Open source | — | — | — | |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — | |
| Geo Plus | Agentic AI | Open source | Tel Aviv, Israel | — | — | |
| Intelagentsia | AI Search Engine | Open source | — | — | — | |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Tripvalet | Travel Tech | Open source | Tel Aviv, Israel | — | — | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Nomic AI | AI Infrastructure Stack | Open source · Self-hostable | New York City, United States | $19.0M | 59 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Brave Search API | AI Search Engine | Open source | San Francisco, United States | — | 52 | |
| Taskade | SpaceTech | Open source | New York, United States | $1.0M | 49 | |
| Recall AI | Personal AI | Open source | San Francisco, United States | $10.3M | 46 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 | |
| Twin | Agentic AI | Open source | San Francisco, United States | — | 43 | |
| Productivity | Open source | — | — | 42 | ||
| Raindrop | AI Search Engine | Open source | Moscow, Russia | $32.8M | 40 | |
| Qualifire | Generative AI | Open source | — | — | 32 | |
| MemGPT | Foundation Model | Open source | — | — | 28 | |
| 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 | |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 | |
| Search House AI | AI Search Engine | Open source | Tel Aviv, Israel | — | 14 | |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 | |
| lIdée | AI Search Engine | Open source | Tel Aviv, Israel | — | 10 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 | |
| Keyboardsignal | Generative AI | Open source | — | — | — | |
| Knowql | AI Search Engine | Open source | — | — | — | |
| Revochat | Conversational AI | Open source | — | — | — |