Open source focus
Open Source Alternatives to Sandthought
60 open source AI Search Engine options similar to Sandthought, 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
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
PaperswanAI Search EngineSan Francisco, United StatesOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Qualifire32Generative AIOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Vibranium Dome23AI AgentsOpen source · Self-hostable
GPT Researcher13Agentic AIOpen source
FastclaudeAI Search EngineOpen source
RedbuyE-commerceOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
PostintelligencecontractsLegalTechOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Dust65Agentic AIParis, France$15.0MOpen source
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
pleias55AI InfrastructureParis, FranceOpen source
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
giniX54Generative AITel Aviv, IsraelOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Outlit45Agentic AI$500KOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
TandemTrace35Agentic AIOpen source
QUBRID30Cloud InfrastructureOpen source
MemGPT28Foundation ModelOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Langbase20Agentic AISan Francisco, United StatesOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
LlamaAi (DefiLlama)10FintechOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
DowjoFoundation ModelOpen source
AgentiqflowAgentic AIOpen source
CasezLegalTechTel Aviv, IsraelOpen source
BiblelensAI Search EngineOpen source
AixeedAgentic AITel Aviv, IsraelOpen source
EvolvinglabAgentic AIOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
RevochatConversational AIOpen source
TheclearpointAgentic AIOpen source
CommitbenchAI Coding AssistantOpen source
OpenfigsAgentic AIOpen source · Self-hostable
ClauderizerAI Coding AssistantOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
Geo PlusAgentic AITel Aviv, IsraelOpen source
CasecompassLegalTechTel Aviv, IsraelOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Manus AI75Agentic AISingapore, Singapore$150.0MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| 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 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Paperswan | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 | |
| Qualifire | Generative AI | Open source | — | — | 32 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Postintelligencecontracts | LegalTech | Open source | — | — | — | |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 | |
| pleias | AI Infrastructure | Open source | Paris, France | — | 55 | |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 | |
| giniX | Generative AI | Open source | Tel Aviv, Israel | — | 54 | |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| Outlit | Agentic AI | Open source | — | $500K | 45 | |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 | |
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 | |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 | |
| TandemTrace | Agentic AI | Open source | — | — | 35 | |
| QUBRID | Cloud Infrastructure | Open source | — | — | 30 | |
| MemGPT | Foundation Model | Open source | — | — | 28 | |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 | |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 | |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Dowjo | Foundation Model | Open source | — | — | — | |
| Agentiqflow | Agentic AI | Open source | — | — | — | |
| Casez | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Aixeed | Agentic AI | Open source | Tel Aviv, Israel | — | — | |
| Evolvinglab | Agentic AI | Open source | — | — | — | |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — | |
| Revochat | Conversational AI | Open source | — | — | — | |
| Theclearpoint | Agentic AI | Open source | — | — | — | |
| Commitbench | AI Coding Assistant | Open source | — | — | — | |
| Openfigs | Agentic AI | Open source · Self-hostable | — | — | — | |
| Clauderizer | AI Coding Assistant | Open source | — | — | — | |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — | |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Geo Plus | Agentic AI | Open source | Tel Aviv, Israel | — | — | |
| Casecompass | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 | |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 | |
| Manus AI | Agentic AI | Open source | Singapore, Singapore | $150.0M | 75 | |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |