Build Week Runner-up: Dấu, Visualizing Vietnamese Tones for Learners
OpenAIDevs · x · 2026-08-26
Dấu, the second-place Education winner, is a Vietnamese tone practice tool. It extracts pitch using DSP to visualize tones, and uses an LLM to provide coaching and corrections. Grading runs locally without an API key.
Related event: OpenAI Announces Build Week Winners: Eight Codex-Powered Projects(10 posts)→
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