Open source focus
LlamaIndex Inc. is open source
Open Source Alternatives to LlamaIndex Inc.
60 open source Foundation Model options similar to LlamaIndex Inc., 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.
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Langchain-Chatchat11Open SourceOpen source · Self-hostable
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Weaviate60Vector DatabaseAmsterdam, NetherlandsOpen source
Mem054Agentic AISan Francisco, United States$24.0MOpen source · Self-hostable
Superlinked53Artificial IntelligenceTel Aviv, Israel$9.5MOpen source
RelAI51Agentic AISan Francisco, United States$10.0MOpen source · Self-hostable
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
- SOSource32AI InfrastructureSan Francisco, United States$24.0M
Open source · Self-hostable
Inconvo25Agentic AIUnknown, UnknownOpen source · Self-hostable
DocsGPT8Open SourceOpen source · Self-hostable
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
Dust65Agentic AIParis, France$15.0MOpen source
H2O.ai64Foundation ModelMountain View, United States$228.1MOpen source · Self-hostable
Weights & Biases (W&B)63MLOpsSan Francisco, United States$521.0MOpen source
Airweave63Agentic AISan Francisco, United States$6.0MOpen source · Self-hostable
Trigger Device Inc63AI AgentsLondon, United Kingdom$16.5MOpen source · Self-hostable
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
Traceloop55LLMOpsTel Aviv, Israel$6.1MOpen source
MosaicML (now Databricks)54Foundation ModelSan Francisco, United States$21.7MOpen source
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Toolbase54Developer ToolsSan Francisco, United StatesOpen source
Langflow53Agentic AILisbon, PortugalOpen source · Self-hostable
Ollama52Foundation ModelSan Francisco, United States$65.0MOpen source · Self-hostable
Turbopuffer51Artificial IntelligenceSan Francisco, USA$12.0MOpen source
nao Labs50Agentic AISan Francisco, United StatesOpen source
Visual Layer50DatabaseTel Aviv, Israel$7.0MOpen source · Self-hostable
Protocol47Agentic AISan Francisco, United States$3.2MOpen source · Self-hostable
Glue46Agentic AISan Francisco, United States$4.2MOpen source · Self-hostable
- Spice AI46Databaseתל אביב - יפו, Israel
Open source · Self-hostable
JarvisLabs.ai43MLOpsSan Francisco, United StatesOpen source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
- Litellm42LLM OrchestrationSan Francisco, United States
Open source · Self-hostable
OuterBounds Technologies, Inc.41MLOpsSan Francisco, United StatesOpen source
Neptune39MLOpsNew York, United States$11.0MOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Superagent34Agentic AISan Francisco, United StatesOpen source · Self-hostable
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
CRAB26Agentic AIOpen source · Self-hostable
All-Hands AI25Agentic AIOpen source · Self-hostable
Vibranium Dome23AI AgentsOpen source · Self-hostable
Kilo Code20Agentic AISan Francisco, United StatesOpen source · Self-hostable
Langbase20Agentic AISan Francisco, United StatesOpen source
- BABabyAGI18Agentic AI
Open source · Self-hostable
Codel15Agentic AIOpen source · Self-hostable
LLMStack15Agentic AIOpen source · Self-hostable
- AGAgent Pilot13Agentic AI
Open source · Self-hostable
OpenDevin11AI Agent PlatformOpen source · Self-hostable
WebWright11API PlatformOpen source
LlamaAi (DefiLlama)10FintechOpen source
- GEGeniA6Agentic AI
Open source · Self-hostable
- PRPrivateGPT5AI Search Engine
Open source · Self-hostable
ClauderizerAI Coding AssistantOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 |
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Weaviate | Vector Database | Open source | Amsterdam, Netherlands | — | 60 |
| Mem0 | Agentic AI | Open source · Self-hostable | San Francisco, United States | $24.0M | 54 |
| Superlinked | Artificial Intelligence | Open source | Tel Aviv, Israel | $9.5M | 53 |
| RelAI | Agentic AI | Open source · Self-hostable | San Francisco, United States | $10.0M | 51 |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 |
| SOSource | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $24.0M | 32 |
| Inconvo | Agentic AI | Open source · Self-hostable | Unknown, Unknown | — | 25 |
| DocsGPT | Open Source | Open source · Self-hostable | — | — | 8 |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| H2O.ai | Foundation Model | Open source · Self-hostable | Mountain View, United States | $228.1M | 64 |
| Weights & Biases (W&B) | MLOps | Open source | San Francisco, United States | $521.0M | 63 |
| Airweave | Agentic AI | Open source · Self-hostable | San Francisco, United States | $6.0M | 63 |
| Trigger Device Inc | AI Agents | Open source · Self-hostable | London, United Kingdom | $16.5M | 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 |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 |
| Traceloop | LLMOps | Open source | Tel Aviv, Israel | $6.1M | 55 |
| MosaicML (now Databricks) | Foundation Model | Open source | San Francisco, United States | $21.7M | 54 |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 |
| Toolbase | Developer Tools | Open source | San Francisco, United States | — | 54 |
| Langflow | Agentic AI | Open source · Self-hostable | Lisbon, Portugal | — | 53 |
| Ollama | Foundation Model | Open source · Self-hostable | San Francisco, United States | $65.0M | 52 |
| Turbopuffer | Artificial Intelligence | Open source | San Francisco, USA | $12.0M | 51 |
| nao Labs | Agentic AI | Open source | San Francisco, United States | — | 50 |
| Visual Layer | Database | Open source · Self-hostable | Tel Aviv, Israel | $7.0M | 50 |
| Protocol | Agentic AI | Open source · Self-hostable | San Francisco, United States | $3.2M | 47 |
| Glue | Agentic AI | Open source · Self-hostable | San Francisco, United States | $4.2M | 46 |
| Database | Open source · Self-hostable | תל אביב - יפו, Israel | — | 46 | |
| JarvisLabs.ai | MLOps | Open source | San Francisco, United States | — | 43 |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 |
| LLM Orchestration | Open source · Self-hostable | San Francisco, United States | — | 42 | |
| OuterBounds Technologies, Inc. | MLOps | Open source | San Francisco, United States | — | 41 |
| Neptune | MLOps | Open source | New York, United States | $11.0M | 39 |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 |
| Superagent | Agentic AI | Open source · Self-hostable | San Francisco, United States | — | 34 |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 |
| CRAB | Agentic AI | Open source · Self-hostable | — | — | 26 |
| All-Hands AI | Agentic AI | Open source · Self-hostable | — | — | 25 |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |
| Kilo Code | Agentic AI | Open source · Self-hostable | San Francisco, United States | — | 20 |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 |
| BABabyAGI | Agentic AI | Open source · Self-hostable | — | — | 18 |
| Codel | Agentic AI | Open source · Self-hostable | — | — | 15 |
| LLMStack | Agentic AI | Open source · Self-hostable | — | — | 15 |
| AGAgent Pilot | Agentic AI | Open source · Self-hostable | — | — | 13 |
| OpenDevin | AI Agent Platform | Open source · Self-hostable | — | — | 11 |
| WebWright | API Platform | Open source | — | — | 11 |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 |
| GEGeniA | Agentic AI | Open source · Self-hostable | — | — | 6 |
| PRPrivateGPT | AI Search Engine | Open source · Self-hostable | — | — | 5 |
| Clauderizer | AI Coding Assistant | Open source | — | — | — |