GLM 5.3 Flash wrote a working Fabric-API Minecraft mod locally in 7.6M output tokens over about 9 hours

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Rather than another Minecraft clone, a user had GLM 5.3 Flash at Q4 on a rented 4x RTX PRO 6000 WS box write a black hole mod for the real game against the Fabric API, in a human-in-the-loop cycle of request, review, iterate rather than a single prompt or an autonomous loop. The run consumed 7.6M output tokens across roughly 9 hours and many turns; the first hour-long iteration produced a black hole that spawned but caused almost no structural damage, and progress came from feeding reference images. It is one of the more honest local-model agentic accounting posts, because it publishes the token bill and the number of failed iterations rather than only the demo video.