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The original site graded speech, listening and prompts with a server-side LLM (Sarvam). This offline build calls LLM / TTS / STT providers directly from your browser - add your own key below. Leave empty to use those sections in self-grade mode.

      

        
        
        
      

      

        
        
        
        
      

      
      
      
Keys are saved in localStorage on this machine and sent only to the chosen provider. OpenAI, Groq, OpenRouter, Gemini and Sarvam work from the browser directly; Anthropic blocks browser CORS and needs a proxy.