2026-10-06
Clef-flash vs Clef: Latency, Size, and When to Use Each
Clef-flash vs Clef benchmark guidance — speed vs quality, Workers AI model ids, and how to compare latency on identical prompts in the playground.
| **Clef** (`@cf/cloudflare/clef`) | **Clef-flash** (`@cf/cloudflare/clef-flash`) | |
|---|---|---|
| Role | Full Clef decision model (~27B class) | Smaller Clef-flash model for snappier prototypes |
| Best for | Harder multimodal calls, tighter decision quality | High-QPS routing drafts, latency-sensitive loops |
| API shape | Same System One / Jev-compatible schema | Same schema — swap model id only |
| Try online | Clef Playground model toggle | Same playground |
Ready to test? Open the Clef Decision Playground.
This is an independent demo tool for the Clef model. Not affiliated with Cloudflare. Clef model available under Apache 2.0 license.