ShiZhen AI

Oct 2, 2026 · Artificial Intelligence

Cloudflare's Clef: Open-Source Decision Model Skips Token Generation for Agent Routing

Cloudflare open-sources Clef and Clef-flash, prefill-only decision models that score predefined options for routing tasks like ticket triage, avoiding token-by-token generation; the article explains their architecture, probability calibration needs, benchmark results versus Jev, latency and cost trade-offs, and a fine-tuning loop using Cloudflare's AI Gateway and Workers AI.