Open source focus
Open Source Alternatives to Testllm
60 open source AI Testing options similar to Testllm, 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.
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
Giskard60Artificial IntelligenceParis, France$2.5MOpen source
Vijil55Agentic AISan Francisco, United States$17.0MOpen source
Knostic54Cybersecurity$14.3MOpen source
Qualifire32Generative AIOpen source
CRAB26Agentic AIOpen source · Self-hostable
Axonmedical4HealthTechOpen source
Fiddler Labs, Inc.62MLOpsMountain View, United States$39.0MOpen source
Agency58Agentic AISan Francisco, United States$20.0MOpen source
Traceloop55LLMOpsTel Aviv, Israel$6.1MOpen source
Langfuse54MLOpsBerlin, Germany$2.5MOpen source
Fiddler Labs48AI ObservabilityMountain View, United StatesOpen source
Romulous35Agentic AISan Francisco, United StatesOpen source
- Svitch26AI GovernanceSan Francisco, United States
Open source
Vibranium Dome23AI AgentsOpen source · Self-hostable
MarchwardAgentic AISan Francisco, United StatesOpen source
- XAxAI78Frontier AI LabPalo Alto, United States$90.0B
Open source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
DeepSeek AI70AI InfrastructureBeijing, ChinaOpen source
OpenRouter70InfrastructureSan Francisco, United States$153.5MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
Stability AI68Generative AILondon, United Kingdom$101.0MOpen source · Self-hostable
- MOMoonshot AI66Frontier AI LabBeijing, China$250.0M
Open source
Arize AI65AI ObservabilityBerkeley, United StatesOpen source
Dust65Agentic AIParis, France$15.0MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
H2O.ai64Foundation ModelMountain View, United States$228.1MOpen source · Self-hostable
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Modular58AI InfrastructureSan Francisco, United States$380.0MOpen source
Langfuse GmbH58MLOpsBerlin, Germany$2.5MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Converge Bio56Life SciencesSan Francisco, United States$5.5MOpen source · Self-hostable
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
- CLClerk56Developer ToolsSan Francisco, United States$69.0M
Open source
pleias55AI InfrastructureParis, FranceOpen source
LightningAI55AI InfrastructureSan Francisco, United StatesOpen source
MosaicML (now Databricks)54Foundation ModelSan Francisco, United States$21.7MOpen source
giniX54Generative AITel Aviv, IsraelOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Aviro53Agentic AISan Francisco, United States$500KOpen source
Martian52AI InfrastructureSan Francisco, United StatesOpen source
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Manufact Inc.52AI InfrastructureSan Francisco, United States$6.3MOpen source
Ollama52Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Modal Labs52Agentic AISan Francisco, United States$693.0MOpen source
TensorOps48Generative AISan Francisco, United StatesOpen source
Prem47Artificial IntelligenceZurich, Switzerland$100.0MOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Crowdsense45EnterpriseTel Aviv, Israel$880KOpen source
Mayhem Security45CybersecurityBethesda, United StatesOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 |
| Giskard | Artificial Intelligence | Open source | Paris, France | $2.5M | 60 |
| Vijil | Agentic AI | Open source | San Francisco, United States | $17.0M | 55 |
| Knostic | Cybersecurity | Open source | — | $14.3M | 54 |
| Qualifire | Generative AI | Open source | — | — | 32 |
| CRAB | Agentic AI | Open source · Self-hostable | — | — | 26 |
| Axonmedical | HealthTech | Open source | — | — | 4 |
| Fiddler Labs, Inc. | MLOps | Open source | Mountain View, United States | $39.0M | 62 |
| Agency | Agentic AI | Open source | San Francisco, United States | $20.0M | 58 |
| Traceloop | LLMOps | Open source | Tel Aviv, Israel | $6.1M | 55 |
| Langfuse | MLOps | Open source | Berlin, Germany | $2.5M | 54 |
| Fiddler Labs | AI Observability | Open source | Mountain View, United States | — | 48 |
| Romulous | Agentic AI | Open source | San Francisco, United States | — | 35 |
| AI Governance | Open source | San Francisco, United States | — | 26 | |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |
| Marchward | Agentic AI | Open source | San Francisco, United States | — | — |
| XAxAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 78 |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| DeepSeek AI | AI Infrastructure | Open source | Beijing, China | — | 70 |
| OpenRouter | Infrastructure | Open source | San Francisco, United States | $153.5M | 70 |
| 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 |
| Stability AI | Generative AI | Open source · Self-hostable | London, United Kingdom | $101.0M | 68 |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $250.0M | 66 |
| Arize AI | AI Observability | Open source | Berkeley, United States | — | 65 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |
| H2O.ai | Foundation Model | Open source · Self-hostable | Mountain View, United States | $228.1M | 64 |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Modular | AI Infrastructure | Open source | San Francisco, United States | $380.0M | 58 |
| Langfuse GmbH | MLOps | Open source | Berlin, Germany | $2.5M | 58 |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |
| Converge Bio | Life Sciences | Open source · Self-hostable | San Francisco, United States | $5.5M | 56 |
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 |
| CLClerk | Developer Tools | Open source | San Francisco, United States | $69.0M | 56 |
| pleias | AI Infrastructure | Open source | Paris, France | — | 55 |
| LightningAI | AI Infrastructure | Open source | San Francisco, United States | — | 55 |
| MosaicML (now Databricks) | Foundation Model | Open source | San Francisco, United States | $21.7M | 54 |
| giniX | Generative AI | Open source | Tel Aviv, Israel | — | 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 |
| Aviro | Agentic AI | Open source | San Francisco, United States | $500K | 53 |
| Martian | AI Infrastructure | Open source | San Francisco, United States | — | 52 |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 |
| Manufact Inc. | AI Infrastructure | Open source | San Francisco, United States | $6.3M | 52 |
| Ollama | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 52 |
| Modal Labs | Agentic AI | Open source | San Francisco, United States | $693.0M | 52 |
| TensorOps | Generative AI | Open source | San Francisco, United States | — | 48 |
| Prem | Artificial Intelligence | Open source | Zurich, Switzerland | $100.0M | 47 |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 |
| Crowdsense | Enterprise | Open source | Tel Aviv, Israel | $880K | 45 |
| Mayhem Security | Cybersecurity | Open source | Bethesda, United States | — | 45 |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 |