KlingAI study: visual memory boosts consistency in long-video generation but can lock in outdated appearances
Yuzhuo Chen · hf · 2026-10-27
A controlled study from USTC, KlingAI Research, Tsinghua and others examines visual memory in long-video generation and finds that more memory is not always better.
Key findings:
- Visual memory improves historical consistency but reinforces outdated appearances — e.g., a dead character returns because his jacket is retrieved
- High retrieval relevance does not prove memory utility: look-alike references (a white dinghy retrieved for an orange one) can corrupt the current scene
- The paper dissects failures along two axes: what to forget (context) and what to read (selection)
A counterintuitive result for anyone designing memory in video generation models: retrieval ≠ useful.
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