LuIA is a practice platform built for the Duolingo English Test (DET), combining AI, GPT-4, and Whisper AI to deliver full-length mock tests that closely mirror the real exam experience.
Beyond practice tests, LuIA also provides videos and other study resources, giving you everything you need to prepare for the Duolingo English Test in one place, whether you are just starting out or polishing your skills before test day.
What truly sets LuIA apart is its scoring and feedback system, powered by GPT-4. After each practice, you receive scores, detailed feedback, and profile reports that help you assess your fluency, prosody, completeness, and accuracy, so you always know exactly where you stand and what to improve next.
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