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ChronoReplay Shows Single-Answer VLMs Miss Spatial Nuance
What is ChronoReplay: One Answer Interface Is Not Enough for Streaming Spatial Intelligence?
The paper shows that training a visual language model to say whether an object is left or right doesn’t force it to learn the actual distance between them, and teaching it to estimate distance doesn’t guarantee it knows left/right. It introduces a post-training replay technique that balances categorical and metric spatial cues.
Who it is for
Anyone developing vision-language agents that need reliable spatial reasoning should consider this trade-off and test the ChronoReplay method for more balanced performance.