Open source focus
Open Source Alternatives to Chatgptop
60 open source AI Tool options similar to Chatgptop, 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.
Coworker.aiHR TechOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Chai56AI ChatbotSan Francisco, United States$60.0MOpen source
GPT4All26Foundation ModelNew York, United StatesOpen source · Self-hostable
Modelglass12AI InfrastructureSydney, AustraliaOpen source
- Aibest8AI Search Engine
Open source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
IntellaiGenerative AIOpen source
LwaiGenerative AIOpen source
FastclaudeAI Search EngineOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Chai Research58AI CompanionPalo Alto, United States$55.0MOpen source
MuchBetterAI47FintechLondon, United Kingdom$4.4MOpen source
CustomGPT46AI ChatbotTel Aviv, Israel$1.0MOpen source
Dante45Artificial Intelligence$1.5MOpen source
- Why-Health42Productivity
Open source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
Orq.ai41Agentic AIAmsterdam, Netherlands$8.9MOpen source
Neptune39MLOpsNew York, United States$11.0MOpen source
Noumena AI35Agentic AIתל אביב - יפו, IsraelOpen source
OnePot AI34Generative AISan Francisco, United States$13.0MOpen source
Laghav34AI InfrastructureSan Francisco, United States$1.5MOpen source
Opactor33Agentic AISan Francisco, United StatesOpen source
DeepAI33AI Image GenerationSan Francisco, United StatesOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Vinst29FoodTel Aviv, IsraelOpen source
Gizzmo27MediaOpen source
AIMLAPI26API PlatformTallinn, EstoniaOpen source
SweetDream AI25AI GirlfriendIstanbul, TurkeyOpen source
IAGO22Travel$200KOpen source
Atomic Chat19On-Device AIOpen source
- BEBestpractix19LegalTel Aviv, Israel
Open source
StartupHub.ai17AI Search EngineTel Aviv, IsraelOpen source
GPT Researcher13Agentic AIOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
Truebloom8Agentic AISan Francisco, United StatesOpen source
Helixaai8Foundation ModelLondon, United KingdomOpen source
DocsGPT8Open SourceOpen source · Self-hostable
Agentradio7AI Coding AssistantOpen source
Anxietyreset4Mental Health TechOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
Auto InflateGenerative AIOpen source
IamfamilyAI AgentTel Aviv, IsraelOpen source
PipclawAI AgentOpen source
CowpokeAI AgentOpen source
CareerroiHR TechOpen source
- ThebabrainAI Search Engine
Open source
GoumiFoundation ModelBeaverton, United StatesOpen source
AskhorizonConversational AILondon, United KingdomOpen source
UseacreAI Search EngineOpen source
- AigrowwContent Creation AI
Open source
CarineFintechTel Aviv, IsraelOpen source
AlraidcFoundation ModelOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Coworker.ai | HR Tech | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 | |
| Chai | AI Chatbot | Open source | San Francisco, United States | $60.0M | 56 | |
| GPT4All | Foundation Model | Open source · Self-hostable | New York, United States | — | 26 | |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 | |
| AI Search Engine | Open source | — | — | 8 | ||
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Intellai | Generative AI | Open source | — | — | — | |
| Lwai | Generative AI | Open source | — | — | — | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Lacentral | Frontier AI Lab | Open source | San Francisco, United States | $11.3B | 68 | |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Chai Research | AI Companion | Open source | Palo Alto, United States | $55.0M | 58 | |
| MuchBetterAI | Fintech | Open source | London, United Kingdom | $4.4M | 47 | |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 46 | |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 | |
| Productivity | Open source | — | — | 42 | ||
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 | |
| Orq.ai | Agentic AI | Open source | Amsterdam, Netherlands | $8.9M | 41 | |
| Neptune | MLOps | Open source | New York, United States | $11.0M | 39 | |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 35 | |
| OnePot AI | Generative AI | Open source | San Francisco, United States | $13.0M | 34 | |
| Laghav | AI Infrastructure | Open source | San Francisco, United States | $1.5M | 34 | |
| Opactor | Agentic AI | Open source | San Francisco, United States | — | 33 | |
| DeepAI | AI Image Generation | Open source | San Francisco, United States | — | 33 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| Vinst | Food | Open source | Tel Aviv, Israel | — | 29 | |
| Gizzmo | Media | Open source | — | — | 27 | |
| AIMLAPI | API Platform | Open source | Tallinn, Estonia | — | 26 | |
| SweetDream AI | AI Girlfriend | Open source | Istanbul, Turkey | — | 25 | |
| IAGO | Travel | Open source | — | $200K | 22 | |
| Atomic Chat | On-Device AI | Open source | — | — | 19 | |
| BEBestpractix | Legal | Open source | Tel Aviv, Israel | — | 19 | |
| StartupHub.ai | AI Search Engine | Open source | Tel Aviv, Israel | — | 17 | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 | |
| Truebloom | Agentic AI | Open source | San Francisco, United States | — | 8 | |
| Helixaai | Foundation Model | Open source | London, United Kingdom | — | 8 | |
| DocsGPT | Open Source | Open source · Self-hostable | — | — | 8 | |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 | |
| Anxietyreset | Mental Health Tech | Open source | — | — | 4 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Auto Inflate | Generative AI | Open source | — | — | — | |
| Iamfamily | AI Agent | Open source | Tel Aviv, Israel | — | — | |
| Pipclaw | AI Agent | Open source | — | — | — | |
| Cowpoke | AI Agent | Open source | — | — | — | |
| Careerroi | HR Tech | Open source | — | — | — | |
| AI Search Engine | Open source | — | — | — | ||
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Askhorizon | Conversational AI | Open source | London, United Kingdom | — | — | |
| Useacre | AI Search Engine | Open source | — | — | — | |
| Content Creation AI | Open source | — | — | — | ||
| Carine | Fintech | Open source | Tel Aviv, Israel | — | — | |
| Alraidc | Foundation Model | Open source | — | — | — |