iFlytek Launches Spark Intelligent Grading Machine M50 with Error Diagnosis

On September 1, 2026, iFlytek released the Spark Intelligent Grading Machine M50, which can grade and analyze homework for an entire class within minutes, forming an hour-level personalized teaching loop. Its error cause system includes over 4,000 labels and passed expert appraisal. The device supports 50g low-weight paper with a jam rate of 0.4‰.

This product directly targets teacher grading tasks, using AI to diagnose errors and free teachers from mechanical labor, potentially alleviating occupational health issues. Its hour-level teaching loop may change feedback pace, but actual effectiveness needs independent verification. Teachers may reduce grading time and focus on targeted tutoring, but need to adapt to AI diagnostics. Schools may increase procurement of intelligent grading devices, but must assess cost and compatibility.