HanBot (한봇) is a full-stack AI Korean language learning system that combines speech recognition, LLM-based conversation, grammar correction, vocabulary building, and blockchain-certified learning achievements.
It’s designed for learners of all levels, with support for multiple native languages (English, Uzbek, Russian, Korean).

• 🎙 Real-time Speech Practice

  • Whisper-based Korean Speech-to-Text (STT)
  • AI tutor with dynamic conversation using GPT-4 / KoGPT
  • Pronunciation scoring with phoneme-level analysis
  • Optional lip movement guidance with OpenCV + MediaPipe

• 📝 Grammar & Vocabulary Coach

  • Grammar correction powered by GPT-4 and KoBERT fine-tuning
  • Spaced repetition vocabulary builder
  • Context-based example sentences

• 🎧 Listening & Reading Comprehension

  • Audio/video input → comprehension questions generated by AI
  • Summarization and keyword extraction for study

• 🏆 Blockchain-Certified Progress

  • NFT-based completion certificates on Polygon testnet
  • Immutable learning achievements
  • QR code verification for employers/schools

• 🌍 Multilingual Support

  • Learning explanations in English, Uzbek, Russian, and Korean