S-Agent 2.0 uses a coding agent for spatial reasoning, +20.5 on ReVSI

liuziwei7 · x · 2026-10-22

S-Agent 2.0 does spatial reasoning with a general-purpose coding agent, using a command-line perception toolkit that closes the evidence loop — acquire, remember, interpret. The approach boosts performance by +20.5 on ReVSI and +13.9 on MMSI, showing a coding agent can take on spatial perception and reasoning tasks without modifying the underlying model.

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