SCM (Sovereign Classification Model) published a ledger of 48 failed classifier-improvement ideas with the measurements that rejected each one. The open models, built on Qwen3 at 1.7, 4, and 14 billion parameters, are available via GitHub and Hugging Face with weights and training sources. Failed approaches included more training data, answer-key debiasing, and conformal prediction, which lost coverage on unseen workflows.
No score is assigned. Sources and their independence are shown in the citation chain below.