Open source focus
Open Source Alternatives to Flexkey
60 open source AI Chatbot options similar to Flexkey, 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.
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
- Why-Health42Productivity
Open source
Vibranium Dome23AI AgentsOpen source · Self-hostable
Briefbridge23AI Search EngineTel Aviv, Israel$1.5MOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
- PRPrivateGPT5AI Search Engine
Open source · Self-hostable
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
ClauderizerAI Coding AssistantOpen source
- XAxAI78Frontier AI LabPalo Alto, United States$90.0B
Open source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Dust65Agentic AIParis, France$15.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Modular58AI InfrastructureSan Francisco, United States$380.0MOpen source
Langfuse GmbH58MLOpsBerlin, Germany$2.5MOpen source
Market Beyond57RetailTechNew York, United States$4.0MOpen source
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Seek AI46AI Coding AssistantTel Aviv, IsraelOpen source
Crowdsense45EnterpriseTel Aviv, Israel$880KOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
- MIMind Lab41Artificial IntelligenceSan Francisco, United States
Open source
Noumena AI40Agentic AIתל אביב - יפו, IsraelOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
CustomGPT35AI ChatbotTel Aviv, Israel$1.0MOpen source
DeepAI33AI Image GenerationOpen source
Qualifire32Generative AIOpen source
AIMLAPI30Machine LearningOpen source
GPT4All26Foundation ModelNew York, United StatesOpen source · Self-hostable
Langbase20Agentic AISan Francisco, United StatesOpen source
Atomic Chat19On-Device AIOpen source
GPT Researcher13Agentic AIOpen source
WebWright11API PlatformOpen source
LlamaAi (DefiLlama)10FintechOpen source
Helixaai8Foundation ModelOpen source
Coworker.aiHR TechOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
- ThripFoundation Model
Open source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
LwaiGenerative AIOpen source
TanakasunAI OrchestrationOpen source
Denser AIAI ChatbotTel Aviv, IsraelOpen source
DataforeveryoneAI Search EngineSan Francisco, United StatesOpen source
AlraidcFoundation ModelOpen source
- ThebabrainAI Search Engine
Open source
ZenlawyerLegalTechTel Aviv, IsraelOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |
| Productivity | Open source | — | — | 42 | |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 23 |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 |
| PRPrivateGPT | AI Search Engine | Open source · Self-hostable | — | — | 5 |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 |
| Clauderizer | AI Coding Assistant | Open source | — | — | — |
| XAxAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 78 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| Lacentral | Frontier AI Lab | Open source | San Francisco, United States | $11.3B | 68 |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 |
| Modular | AI Infrastructure | Open source | San Francisco, United States | $380.0M | 58 |
| Langfuse GmbH | MLOps | Open source | Berlin, Germany | $2.5M | 58 |
| Market Beyond | RetailTech | Open source | New York, United States | $4.0M | 57 |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 |
| Seek AI | AI Coding Assistant | Open source | Tel Aviv, Israel | — | 46 |
| Crowdsense | Enterprise | Open source | Tel Aviv, Israel | $880K | 45 |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 |
| MIMind Lab | Artificial Intelligence | Open source | San Francisco, United States | — | 41 |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 40 |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 35 |
| DeepAI | AI Image Generation | Open source | — | — | 33 |
| Qualifire | Generative AI | Open source | — | — | 32 |
| AIMLAPI | Machine Learning | Open source | — | — | 30 |
| GPT4All | Foundation Model | Open source · Self-hostable | New York, United States | — | 26 |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 |
| Atomic Chat | On-Device AI | Open source | — | — | 19 |
| GPT Researcher | Agentic AI | Open source | — | — | 13 |
| WebWright | API Platform | Open source | — | — | 11 |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 |
| Helixaai | Foundation Model | Open source | — | — | 8 |
| Coworker.ai | HR Tech | Open source | — | — | — |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — |
| Foundation Model | Open source | — | — | — | |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — |
| Lwai | Generative AI | Open source | — | — | — |
| Tanakasun | AI Orchestration | Open source | — | — | — |
| Denser AI | AI Chatbot | Open source | Tel Aviv, Israel | — | — |
| Dataforeveryone | AI Search Engine | Open source | San Francisco, United States | — | — |
| Alraidc | Foundation Model | Open source | — | — | — |
| AI Search Engine | Open source | — | — | — | |
| Zenlawyer | LegalTech | Open source | Tel Aviv, Israel | — | — |