Open source focus
Perplexity AI is open source
Open Source Alternatives to Perplexity AI
60 open source Search Engine options similar to Perplexity AI, 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.
GPT Researcher13Agentic AIOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
Noumena AI35Agentic AIתל אביב - יפו, IsraelOpen source
Zed46Agentic AISan Francisco, United States$95.5MOpen source
Recall AI46Personal AISan Francisco, United States$10.3MOpen source
Hordus AI25AI Search Engineתל אביב - יפו, IsraelOpen source
Google73InternetMountain View, United States$9.1BOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
RedbuyE-commerceOpen source
EvolvinglabAgentic AIOpen source
DowjoFoundation ModelOpen source
BiblelensAI Search EngineOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Brave Search API52AI Search EngineSan Francisco, United StatesOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Tosly.onlineAgentic AIOpen source
BieniekAgentic AIOpen source
FastclaudeAI Search EngineOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
BarakudaInnovation LabOpen source
CybernomicFoundation ModelOpen source
WulverstoneFoundation ModelOpen source
HainexusFoundation ModelOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Dust65Agentic AIParis, France$15.0MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Nomic AI59AI Infrastructure StackNew York City, United States$19.0MOpen source · Self-hostable
Anon53Agentic AI$6.5MOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
- Why-Health42Productivity
Open source
Qualifire32Generative AIOpen source
MemGPT28Foundation ModelOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Vibranium Dome23AI AgentsOpen source · Self-hostable
Langbase20Agentic AISan Francisco, United StatesOpen source
Melodocs18Foundation ModelOpen source
Search House AI14AI Search EngineTel Aviv, IsraelOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
LlamaAi (DefiLlama)10FintechOpen source
lIdée10AI Search EngineTel Aviv, IsraelOpen source
Agentradio7AI Coding AssistantOpen source
ClauderizerAI Coding AssistantOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
RevochatConversational AIOpen source
Loop IqAI Tools & AppsOpen source
CiteranksAI Search EngineOpen source
PostintelligencecontractsLegalTechOpen source
UseacreAI Search EngineOpen source
IntellaiGenerative AIOpen source
KeyboardsignalGenerative AIOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 | |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 35 | |
| Zed | Agentic AI | Open source | San Francisco, United States | $95.5M | 46 | |
| Recall AI | Personal AI | Open source | San Francisco, United States | $10.3M | 46 | |
| Hordus AI | AI Search Engine | Open source | תל אביב - יפו, Israel | — | 25 | |
| Google | Internet | Open source | Mountain View, United States | $9.1B | 73 | |
| 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 | — | — | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Evolvinglab | Agentic AI | Open source | — | — | — | |
| Dowjo | Foundation Model | Open source | — | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| Brave Search API | AI Search Engine | Open source | San Francisco, United States | — | 52 | |
| 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 | |
| Tosly.online | Agentic AI | Open source | — | — | — | |
| Bieniek | Agentic AI | Open source | — | — | — | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — | |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Barakuda | Innovation Lab | Open source | — | — | — | |
| Cybernomic | Foundation Model | Open source | — | — | — | |
| Wulverstone | Foundation Model | Open source | — | — | — | |
| Hainexus | Foundation Model | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Nomic AI | AI Infrastructure Stack | Open source · Self-hostable | New York City, United States | $19.0M | 59 | |
| Anon | Agentic AI | Open source | — | $6.5M | 53 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 | |
| Productivity | Open source | — | — | 42 | ||
| 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 | |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 | |
| Melodocs | Foundation Model | Open source | — | — | 18 | |
| Search House AI | AI Search Engine | Open source | Tel Aviv, Israel | — | 14 | |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| lIdée | AI Search Engine | Open source | Tel Aviv, Israel | — | 10 | |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 | |
| Clauderizer | AI Coding Assistant | Open source | — | — | — | |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Revochat | Conversational AI | Open source | — | — | — | |
| Loop Iq | AI Tools & Apps | Open source | — | — | — | |
| Citeranks | AI Search Engine | Open source | — | — | — | |
| Postintelligencecontracts | LegalTech | Open source | — | — | — | |
| Useacre | AI Search Engine | Open source | — | — | — | |
| Intellai | Generative AI | Open source | — | — | — | |
| Keyboardsignal | Generative AI | Open source | — | — | — |