One chat. Every AI.
Kostenlos AI connects Groq, Gemini, OpenAI, Mistral, and more � auto-switching providers when limits are reached. Same chat. No interruption. Bring your own free API keys.
Three steps to a free multi-AI workspace.
Sign Up Free
Create a free account with your email. No credit card required.
Add Your API Keys
Paste API keys from Groq, Gemini, Mistral, and others � all have generous free tiers.
Chat Across Every AI
Auto-failover keeps you in the conversation when one provider hits its limit.
Eight providers. One unified chat route.
Groq LLaMA 70B
Groq LLaMA 8B
Gemini 2.0 Flash
Mistral
Perplexity
Together AI
Cohere
OpenAI GPT-3.5
Built to keep the conversation alive.
Auto-Failover
When one provider rate-limits, Kostenlos AI automatically routes to the next � no broken conversations.
Smart Memory
Full conversation context is compressed intelligently and passed to every AI provider.
Web Search
Real-time answers powered by Tavily web search integration � current context, always.
Secure Key Handling
Your API keys are scoped to your signed-in account and used only to call your configured providers.
Start for free. No credit card.
Bring your own free API keys and connect every major AI provider in one place.
Launch Kostenlos AI ?