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A 26,000-student study shows AI's hidden learning cost takes two full years to surface

Published
Jul 4, 2026 — 09:08 UTC

A recent study involving over 26,000 Chinese students has highlighted the long-term academic consequences of AI usage in education. While AI-assisted students completed homework more quickly and achieved higher scores in the short term, they exhibited a notable decline in exam performance, with scores dropping by as much as 24 percent. This discrepancy raises concerns about the efficacy of AI tools in fostering genuine learning and retention of knowledge.

The research indicates that the adverse effects of AI on students’ learning outcomes do not manifest immediately. Instead, the full impact on critical assessments, such as entrance exams, takes approximately two years to become apparent. This finding suggests that short-term studies may significantly underestimate the negative implications of AI on educational achievement, emphasizing the need for a more nuanced understanding of AI’s role in learning environments. The implications of this research are critical for educators and policymakers as they navigate the integration of AI technologies in academic settings.

For further details, refer to the original article on The Decoder.

Turing Wire

By Callan Zhang · Jul 4, 2026 · Editorial standards →

Summarised from the primary source with AI assistance under human editorial oversight. Turing Wire is not a primary source — read the original for the authoritative account.

Source: The Decoder