Open source focus
Open Source Alternatives to Natural
60 open source AI Search Engine options similar to Natural, 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.
Algolia75Search TechnologySan Francisco, United States$334.2MOpen source
Pola.rs63AI Search EngineTel Aviv, Israel$26.0MOpen source
lIdée10AI Search EngineTel Aviv, IsraelOpen source
RevanipulseAgentic AIOpen source
ShopcodexE-commerceTel Aviv, IsraelOpen source
RedbuyE-commerceOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
TwelveLabs64Video IntelligenceSan Francisco, United States$68.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
- BRBria56Generative AITel Aviv, Israel$130.5M
Open source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Adot43E-commerceSan Francisco, United StatesOpen source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Noumena AI35Agentic AIתל אביב - יפו, IsraelOpen source
Melissa34Customer Data PlatformTel Aviv, Israel$2.0MOpen source
Firstprinciplesgtm33Agentic AISan Francisco, United StatesOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Mirra AI28Web3Open source
Berrybell22Agentic AITel Aviv, IsraelOpen source
Quantty15Foundation ModelOpen source
Search House AI14AI Search EngineTel Aviv, IsraelOpen source
GPT Researcher13Agentic AIOpen source
LlamaAi (DefiLlama)10FintechOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
360sprint4Agentic AITel Aviv, IsraelOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
Consensus360AI Search EngineOpen source
StewardshipintelligenceAI Tools & AppsOpen source
BieniekAgentic AIOpen source
AlraidcFoundation ModelOpen source
MotorwerkGenerative AITel Aviv, IsraelOpen source
HainexusFoundation ModelOpen source
CybernomicFoundation ModelOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
BarakudaInnovation LabOpen source
BugaboohaGenerative AITel Aviv, IsraelOpen source
BiblelensAI Search EngineOpen source
FastclaudeAI Search EngineOpen source
TheclearpointAgentic AIOpen source
DarkmarketE-commerceOpen source
WulverstoneFoundation ModelOpen source
CohartcocoGenerative AIOpen source
UseacreAI Search EngineOpen source
PostintelligencecontractsLegalTechOpen source
GhoztAgentic AIOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
Geo PlusAgentic AITel Aviv, IsraelOpen source
KnowqlAI Search EngineOpen source
CaddioAI Search EngineTel Aviv, IsraelOpen source
Loop IqAI Tools & AppsOpen source
BuildtoexitAI Search EngineSan Francisco, United StatesOpen source
Ai DnaAI InfrastructureOpen source
- ExploitcheckCybersecurity
Open source
DontclickAI Search EngineOpen source
AdvostackAI Search EngineOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Algolia | Search Technology | Open source | San Francisco, United States | $334.2M | 75 | |
| Pola.rs | AI Search Engine | Open source | Tel Aviv, Israel | $26.0M | 63 | |
| lIdée | AI Search Engine | Open source | Tel Aviv, Israel | — | 10 | |
| Revanipulse | Agentic AI | Open source | — | — | — | |
| Shopcodex | E-commerce | Open source | Tel Aviv, Israel | — | — | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| TwelveLabs | Video Intelligence | Open source | San Francisco, United States | $68.0M | 64 | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 | |
| BRBria | Generative AI | Open source | Tel Aviv, Israel | $130.5M | 56 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 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 | |
| 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 | |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 35 | |
| Melissa | Customer Data Platform | Open source | Tel Aviv, Israel | $2.0M | 34 | |
| Firstprinciplesgtm | Agentic AI | Open source | San Francisco, United States | — | 33 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| Mirra AI | Web3 | Open source | — | — | 28 | |
| Berrybell | Agentic AI | Open source | Tel Aviv, Israel | — | 22 | |
| Quantty | Foundation Model | Open source | — | — | 15 | |
| Search House AI | AI Search Engine | Open source | Tel Aviv, Israel | — | 14 | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| 360sprint | Agentic AI | Open source | Tel Aviv, Israel | — | 4 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Consensus360 | AI Search Engine | Open source | — | — | — | |
| Stewardshipintelligence | AI Tools & Apps | Open source | — | — | — | |
| Bieniek | Agentic AI | Open source | — | — | — | |
| Alraidc | Foundation Model | Open source | — | — | — | |
| Motorwerk | Generative AI | Open source | Tel Aviv, Israel | — | — | |
| Hainexus | Foundation Model | Open source | — | — | — | |
| Cybernomic | Foundation Model | Open source | — | — | — | |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Barakuda | Innovation Lab | Open source | — | — | — | |
| Bugabooha | Generative AI | Open source | Tel Aviv, Israel | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| Theclearpoint | Agentic AI | Open source | — | — | — | |
| Darkmarket | E-commerce | Open source | — | — | — | |
| Wulverstone | Foundation Model | Open source | — | — | — | |
| Cohartcoco | Generative AI | Open source | — | — | — | |
| Useacre | AI Search Engine | Open source | — | — | — | |
| Postintelligencecontracts | LegalTech | Open source | — | — | — | |
| Ghozt | Agentic AI | Open source | — | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Geo Plus | Agentic AI | Open source | Tel Aviv, Israel | — | — | |
| Knowql | AI Search Engine | Open source | — | — | — | |
| Caddio | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Loop Iq | AI Tools & Apps | Open source | — | — | — | |
| Buildtoexit | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Ai Dna | AI Infrastructure | Open source | — | — | — | |
| Cybersecurity | Open source | — | — | — | ||
| Dontclick | AI Search Engine | Open source | — | — | — | |
| Advostack | AI Search Engine | Open source | — | — | — |