Full GLM-5.3 (753B) on 4× DGX Spark ran the Tower of Babel Bench:
one brief, then 6 hours of active time with no human to answer questions.
The task: build the Tower of Babel in Blender "in extreme, exquisite detail" and host a web app showing its progress.
What it did on its own:
-planned milestones with time boxes and kept a dated journal
-wrote the whole scene as procedural Python: 2,378 objects, 340 unique meshes, 128k faces
-rendered low-res drafts to check its work, then four 1920×1080 Cycles finals
-built and hosted its own web app: renders, 3D viewer, history, plan, live stats
It also realized it had no vision, so it wrote a tool that turns its renders into ASCII brightness maps to "see" them.
@matdmiller bench isn't "can it write code." It tests:
-endurance: working hours alone and pacing against a clock
-time management: slow renders in the background, no waiting around
-context management: 262K window, compaction, helper agents
-3D/spatial reasoning, coding and the final quality
Every call, token, tool use and cache hit is logged.
The run:
-6:00 active hours, 0 crashes, 0 errors
-274 model calls
-178,868 tokens generated (97,653 reasoning)
-10.36M prompt tokens, 92.3% served from cache
-4 finals, 53–168 s each on CPU
GLM-5.3 EXL3 2.75bpw · TensorFold TP4 (
@u1tra_instinct image) · 262K context