Open source focus
Open Source Alternatives to Saimonsays
60 open source Prompt Engineering options similar to Saimonsays, 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
Lovable75No-Code/Low-CodeStockholm, Sweden$1.2BOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
Chai56AI ChatbotSan Francisco, United States$62.0MOpen source
- Why-Health42Productivity
Open source
Laghav34AI InfrastructureSan Francisco, United States$1.5MOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Modelglass12AI InfrastructureSydney, AustraliaOpen source
Agentradio7AI Coding AssistantOpen source
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
Coworker.aiHR TechOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
DowjoFoundation ModelOpen source
InstructionlabAI Tools & AppsSan Francisco, United StatesOpen source
BiblelensAI Search EngineOpen source
IntellaiGenerative AIOpen source
Tosly.onlineAgentic AIOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
FastclaudeAI Search EngineOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
GrowsocialSocial Media MarketingTel Aviv, IsraelOpen source
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
DeepL82Artificial IntelligenceCologne, Germany$300.0MOpen source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
SpaceXAI76Frontier AI LabPalo Alto, United States$32.1BOpen source
DeepSeek AI70AI InfrastructureBeijing, China$7.0BOpen source
OpenRouter70InfrastructureSan Francisco, United States$153.5MOpen source
- MOMoonshot AI69Frontier AI LabBeijing, China$3.9B
Open source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Stability AI68Generative AILondon, United Kingdom$101.0MOpen source · Self-hostable
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Dust65Agentic AIParis, France$15.0MOpen source
H2O.ai64Foundation ModelMountain View, United States$228.1MOpen source · Self-hostable
Chai Research63AI CompanionPalo Alto, United States$55.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
Viktor62Artificial IntelligenceWarsaw, Poland$64.7MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen 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
- MIMintlify / mcpt57Developer ToolsSan Francisco, United States
Open source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
Converge Bio56Life SciencesSan Francisco, United States$5.5MOpen source · Self-hostable
- CLClerk56Developer ToolsSan Francisco, United States$69.0M
Open source
LightningAI55AI InfrastructureSan Francisco, United StatesOpen source
Traceloop55LLMOpsTel Aviv, Israel$6.1MOpen source
pleias55AI InfrastructureParis, FranceOpen source
giniX54Generative AITel Aviv, IsraelOpen source
M Magical54Artificial IntelligenceSan Francisco, United StatesOpen source
Knostic54Cybersecurity$14.3MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Langfuse54MLOpsBerlin, Germany$2.5MOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 |
| Lovable | No-Code/Low-Code | Open source | Stockholm, Sweden | $1.2B | 75 |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 |
| Chai | AI Chatbot | Open source | San Francisco, United States | $62.0M | 56 |
| Productivity | Open source | — | — | 42 | |
| Laghav | AI Infrastructure | Open source | San Francisco, United States | $1.5M | 34 |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — |
| Coworker.ai | HR Tech | Open source | — | — | — |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — |
| Dowjo | Foundation Model | Open source | — | — | — |
| Instructionlab | AI Tools & Apps | Open source | San Francisco, United States | — | — |
| Biblelens | AI Search Engine | Open source | — | — | — |
| Intellai | Generative AI | Open source | — | — | — |
| Tosly.online | Agentic AI | Open source | — | — | — |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — |
| Fastclaude | AI Search Engine | Open source | — | — | — |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — |
| Growsocial | Social Media Marketing | Open source | Tel Aviv, Israel | — | — |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 |
| DeepL | Artificial Intelligence | Open source | Cologne, Germany | $300.0M | 82 |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $32.1B | 76 |
| DeepSeek AI | AI Infrastructure | Open source | Beijing, China | $7.0B | 70 |
| OpenRouter | Infrastructure | Open source | San Francisco, United States | $153.5M | 70 |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 69 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| Stability AI | Generative AI | Open source · Self-hostable | London, United Kingdom | $101.0M | 68 |
| 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 |
| H2O.ai | Foundation Model | Open source · Self-hostable | Mountain View, United States | $228.1M | 64 |
| Chai Research | AI Companion | Open source | Palo Alto, United States | $55.0M | 63 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 |
| Viktor | Artificial Intelligence | Open source | Warsaw, Poland | $64.7M | 62 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 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 |
| MIMintlify / mcpt | Developer Tools | Open source | San Francisco, United States | — | 57 |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 |
| Converge Bio | Life Sciences | Open source · Self-hostable | San Francisco, United States | $5.5M | 56 |
| CLClerk | Developer Tools | Open source | San Francisco, United States | $69.0M | 56 |
| LightningAI | AI Infrastructure | Open source | San Francisco, United States | — | 55 |
| Traceloop | LLMOps | Open source | Tel Aviv, Israel | $6.1M | 55 |
| pleias | AI Infrastructure | Open source | Paris, France | — | 55 |
| giniX | Generative AI | Open source | Tel Aviv, Israel | — | 54 |
| M Magical | Artificial Intelligence | Open source | San Francisco, United States | — | 54 |
| Knostic | Cybersecurity | Open source | — | $14.3M | 54 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Langfuse | MLOps | Open source | Berlin, Germany | $2.5M | 54 |