Open source focus
Arena is open source
Open Source Alternatives to Arena
60 open source Artificial Intelligence options similar to Arena, 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
Google73InternetMountain View, United States$9.1BOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
LlamaAi (DefiLlama)10FintechOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
RedbuyE-commerceOpen source
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Prem47Artificial IntelligenceZurich, Switzerland$100.0MOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
PromptQL31Artificial IntelligenceSan Francisco, United StatesOpen source · Self-hostable
AIMLAPI26API PlatformTallinn, EstoniaOpen source
Modelglass12AI InfrastructureSydney, AustraliaOpen source
lIdée10AI Search EngineTel Aviv, IsraelOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
EyrusAI InfrastructureOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
DowjoFoundation ModelOpen source
IntellaiGenerative AIOpen source
BiblelensAI Search EngineOpen source
Ai DnaAI InfrastructureOpen source
Loop IqAI Tools & AppsOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
DeepL82Artificial IntelligenceCologne, Germany$300.0MOpen source
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
Osaurus71Artificial IntelligenceSan Francisco, USA$63.0MOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
Viktor62Artificial IntelligenceWarsaw, Poland$64.7MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Chai56AI ChatbotSan Francisco, United States$60.0MOpen source
Dessn55Artificial IntelligenceLondon, United Kingdom$5.0MOpen source
MosaicML (now Databricks)54Foundation ModelSan Francisco, United States$3.0BOpen source
M Magical54Artificial IntelligenceSan Francisco, United StatesOpen source
Anon53Agentic AI$6.5MOpen source
Taskade49SpaceTechNew York, United States$1.0MOpen source
Crowdsense48EnterpriseTel Aviv, Israel$880KOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Zed46Agentic AISan Francisco, United States$95.5MOpen source
Dante45Artificial Intelligence$1.5MOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Adot43E-commerceSan Francisco, United StatesOpen source
- Why-Health42Productivity
Open source
- MIMind Lab41Artificial IntelligenceSan Francisco, United States
Open source
Neptune39MLOpsNew York, United States$11.0MOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Noumena AI35Agentic AIתל אביב - יפו, IsraelOpen source
Pluum34Travel TechTel Aviv, IsraelOpen source
GrackerAI33Agentic SEOTel Aviv, IsraelOpen source
Opactor33Agentic AISan Francisco, United StatesOpen source
Qualifire32Generative AIOpen source
herocon.ai27Agentic AI$2.0MOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Mamba (AI Architecture)23Artificial IntelligenceOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Google | Internet | Open source | Mountain View, United States | $9.1B | 73 | |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 | |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| Prem | Artificial Intelligence | Open source | Zurich, Switzerland | $100.0M | 47 | |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| PromptQL | Artificial Intelligence | Open source · Self-hostable | San Francisco, United States | — | 31 | |
| AIMLAPI | API Platform | Open source | Tallinn, Estonia | — | 26 | |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 | |
| lIdée | AI Search Engine | Open source | Tel Aviv, Israel | — | 10 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Eyrus | AI Infrastructure | Open source | — | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Dowjo | Foundation Model | Open source | — | — | — | |
| Intellai | Generative AI | Open source | — | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Ai Dna | AI Infrastructure | Open source | — | — | — | |
| Loop Iq | AI Tools & Apps | Open source | — | — | — | |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — | |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — | |
| DeepL | Artificial Intelligence | Open source | Cologne, Germany | $300.0M | 82 | |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 | |
| Osaurus | Artificial Intelligence | Open source | San Francisco, USA | $63.0M | 71 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| Viktor | Artificial Intelligence | Open source | Warsaw, Poland | $64.7M | 62 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| 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 | |
| Dessn | Artificial Intelligence | Open source | London, United Kingdom | $5.0M | 55 | |
| MosaicML (now Databricks) | Foundation Model | Open source | San Francisco, United States | $3.0B | 54 | |
| M Magical | Artificial Intelligence | Open source | San Francisco, United States | — | 54 | |
| Anon | Agentic AI | Open source | — | $6.5M | 53 | |
| Taskade | SpaceTech | Open source | New York, United States | $1.0M | 49 | |
| Crowdsense | Enterprise | Open source | Tel Aviv, Israel | $880K | 48 | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| Zed | Agentic AI | Open source | San Francisco, United States | $95.5M | 46 | |
| Dante | Artificial Intelligence | Open source | — | $1.5M | 45 | |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 | |
| Adot | E-commerce | Open source | San Francisco, United States | — | 43 | |
| Productivity | Open source | — | — | 42 | ||
| MIMind Lab | Artificial Intelligence | 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 | |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 | |
| Noumena AI | Agentic AI | Open source | תל אביב - יפו, Israel | — | 35 | |
| Pluum | Travel Tech | Open source | Tel Aviv, Israel | — | 34 | |
| GrackerAI | Agentic SEO | Open source | Tel Aviv, Israel | — | 33 | |
| Opactor | Agentic AI | Open source | San Francisco, United States | — | 33 | |
| Qualifire | Generative AI | Open source | — | — | 32 | |
| herocon.ai | Agentic AI | Open source | — | $2.0M | 27 | |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 | |
| Mamba (AI Architecture) | Artificial Intelligence | Open source | — | — | 23 |