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Learning a language by speaking

Plain answers to questions learners ask, and how Sayelle's on-device AI tutor works.

How does an AI language tutor work offline on your phone?

What actually runs on your phone when you talk to an offline AI tutor: listening, thinking and speaking. Why the download is about 4 GB, why memory matters, and what a phone-sized model can and can't do.

· 7 min read