Non-record: Turbo-Muon + EngramLite(10240) + VE(8,9,10) — val_bpb 1.1431#1205
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… 1.1431 Based on PR openai#1089 stack with hyperparameter tuning: - Higher LR (0.030 vs 0.025) for faster convergence - Wider EngramLite (10240x48 vs 8192x32) - VE on layers 8,9,10 (vs 9,10) - Warmdown 4500 (vs 3500) - Muon momentum warmup 1000 steps (vs 1500) 3-seed mean: 1.1431 (std 0.0007) Seeds: 1337=1.1425, 42=1.1438, 2024=1.1431
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Summary
Non-record submission based on the PR #1089 Turbo-Muon + EngramLite stack with hyperparameter tuning.
val_bpb: 1.1431 (3-seed mean, std 0.0007)
Changes from PR #1089
Key Finding
The increased model size (~31.6M vs 30.7M params) pushed the artifact to 16.36MB pre-compression, forcing all 66 weight groups into int5 with 0 promotions to int6/int7 and 20.5% selective pruning. This aggressive quantization likely offset the architectural gains. The 16MB budget is extremely tight — even small parameter increases can cascade into significant quality loss through the quantization pipeline.
Hardware
8xH100 80GB SXM, 600s training, ~5550 steps at 106ms/step.