tokencraft · comparison · 50 of 50
Prompt Engineering Vs. Vellum
TokenCraft is a Lab-Notebook IDE for prompt engineers. Each cell is a semver-tagged version. Each token carries a per-call USD subscript. The promote button is locked when HumanEval drops more than 5% versus HEAD. This page covers how that posture compares on the “Prompt Engineering Vs. Vellum” angle.
what tokencraft does differently
- K1.8Semver promote with eval gate — patch/minor/major bumps per change-type; promote blocks when HumanEval drops >5% vs HEAD.
- K1.4Token-budget enforcer — SSE stream halts mid-call when projected cost crosses your per-cell cap (default 5¢).
- K6.2OTLP traces — every cell-run is a distributed trace deep-linkable to Honeycomb, Grafana, or your in-house collector.
One of 50 niche surfaces we maintain for the prompt-ops audience. Each page is updated quarterly from the live notebook.