Open source focus
Open Source Alternatives to Withcontextos
60 open source AI Search Engine options similar to Withcontextos, 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.
VektorsearchpartnersAI Search EngineOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
PostintelligencecontractsLegalTechOpen 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
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
CustomGPT46AI ChatbotTel Aviv, Israel$1.0MOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Supernova37Developer ToolsSan Francisco, United States$129.2MOpen source
Briefbridge36AI Search Engine$1.5MOpen source
Qualifire32Generative AIOpen source
QUBRID30Cloud InfrastructureOpen source
Andraste29Agentic AIOpen source
Vibranium Dome23AI AgentsOpen source · Self-hostable
TinyFish23Artificial IntelligenceSan Francisco, United StatesOpen source
GPT Researcher13Agentic AIOpen source
LlamaAi (DefiLlama)10FintechOpen source
Langchain-Chatchat10Open SourceOpen source · Self-hostable
42research4AI Search EngineOpen source
GoumiFoundation ModelOpen source
EvolvinglabAgentic AIOpen source
DataforeveryoneAI Search EngineOpen source
KaliaiFoundation ModelOpen source
KnowqlAI Search EngineOpen source
FastclaudeAI Search EngineOpen source
BiblelensAI Search EngineOpen source
SecondarybrainAI Search EngineOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
RedbuyE-commerceOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Dust65Agentic AIParis, France$15.0MOpen source
TwelveLabs64Video IntelligenceSan Francisco, United States$68.0MOpen source
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
pleias55AI InfrastructureParis, FranceOpen source
Graphite55AI Coding AssistantSan Francisco, United StatesOpen source
Knostic54Cybersecurity$14.3MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Entire49Artificial Intelligence$60.0MOpen source · Self-hostable
Fundamental Research Labs49Frontier AI LabSan Francisco, United States$10.0MOpen source
Prem48Artificial IntelligenceZurich, Switzerland$100.0MOpen source
GitHits45Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Outlit45Agentic AI$500KOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
giniX38Generative AITel Aviv, IsraelOpen source
TandemTrace35Agentic AIOpen source
Gizzmo30MediaOpen source
MemGPT28Foundation ModelOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Recallguru22AI Search EngineOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Vektorsearchpartners | AI Search Engine | Open source | — | — | — | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| 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 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Postintelligencecontracts | LegalTech | Open source | — | — | — | |
| 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 | |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 | |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 | |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 46 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| Supernova | Developer Tools | Open source | San Francisco, United States | $129.2M | 37 | |
| Briefbridge | AI Search Engine | Open source | — | $1.5M | 36 | |
| Qualifire | Generative AI | Open source | — | — | 32 | |
| QUBRID | Cloud Infrastructure | Open source | — | — | 30 | |
| Andraste | Agentic AI | Open source | — | — | 29 | |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 23 | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 10 | |
| 42research | AI Search Engine | Open source | — | — | 4 | |
| Goumi | Foundation Model | Open source | — | — | — | |
| Evolvinglab | Agentic AI | Open source | — | — | — | |
| Dataforeveryone | AI Search Engine | Open source | — | — | — | |
| Kaliai | Foundation Model | Open source | — | — | — | |
| Knowql | AI Search Engine | Open source | — | — | — | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Secondarybrain | AI Search Engine | Open source | — | — | — | |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — | |
| Redbuy | E-commerce | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| TwelveLabs | Video Intelligence | Open source | San Francisco, United States | $68.0M | 64 | |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 | |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 | |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 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 | |
| Graphite | AI Coding Assistant | Open source | San Francisco, United States | — | 55 | |
| Knostic | Cybersecurity | Open source | — | $14.3M | 54 | |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 | |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 49 | |
| Fundamental Research Labs | Frontier AI Lab | Open source | San Francisco, United States | $10.0M | 49 | |
| Prem | Artificial Intelligence | Open source | Zurich, Switzerland | $100.0M | 48 | |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 45 | |
| Outlit | Agentic AI | Open source | — | $500K | 45 | |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 | |
| giniX | Generative AI | Open source | Tel Aviv, Israel | — | 38 | |
| TandemTrace | Agentic AI | Open source | — | — | 35 | |
| Gizzmo | Media | Open source | — | — | 30 | |
| MemGPT | Foundation Model | Open source | — | — | 28 | |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 | |
| Recallguru | AI Search Engine | Open source | — | — | 22 |