AI Language Tutor

The brief we build from

This is the exact instruction PromptUI starts with. You can change every word of it before or after the first build.

Build an AI language tutor app. Use the PromptUI AI Proxy at /api/v1/chat/completions (already available — no API key needed). Include a language selector dropdown (Spanish, French, German, Japanese, Mandarin, Italian, Portuguese, Korean) and a proficiency level picker (Beginner, Intermediate, Advanced). Add three modes: (1) Conversation Practice — chat interface where the AI responds in the target language with an English translation shown below in lighter text. AI gently corrects grammar mistakes inline. (2) Vocabulary Builder — AI generates 10 word cards with the word, pronunciation hint, translation, and example sentence. Cards are shown in a swipeable stack with "Know it" and "Study more" buttons. (3) Grammar Challenge — AI presents a sentence with a blank and 3 options, user picks the correct one, AI explains the rule. Show a streak counter and a session score. The AI system prompt: "You are a friendly, patient language tutor. Communicate primarily in the target language at the appropriate level. Correct mistakes gently with brief explanations."

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