Decision models like Clef test faster, more accurate than LLMs for AI routing tasks
A developer tested new decision models, Clef and Clef-flash, against an existing LLM classifier for routing AI prompts. The test, run on October 8, 2026, used a Cloudflare Worker-based system to route coding questions to Claude and other queries to cheaper models. A benchmark of 20 labeled prompts showed the original Llama 4 Scout model had 75% accuracy, misclassifying several prompts. The new decision models were evaluated as potential drop-in replacements to improve routing precision and speed.
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