Customer account context, billing history, and locale loaded into the tunnel.
Platform
Put Generated Writing Through A Complete Test Environment
The Writing Wind Tunnel moves every draft through six chambers — Input, Prompt, Context, Model, Rubric, Release — with no silent skips.
System + user template from Prompt Registry v4.2 — tone instruction revised.
Knowledge snippets, policy excerpts, and variable bindings attached.
gpt-4.1-mini generates three parallel draft streams under pressure.
Criterion Vane Array scores Task, Factuality, Tone, Policy, and Format.
Only chips that pass all vanes reach the Release Zone gate.
Start The Wind Tunnel to animate the renewal email case through every chamber.
Flight guarantees
Every chamber writes an artifact
No silent handoffs — each stage produces a scored, inspectable result.
- Input — Account, locale, and channel context bound before generation
- Prompt — Registry version pinned — v4.1 vs v4.2 diff visible
- Context — Knowledge and policy snippets attached with citations
- Model — Parallel streams for baseline, candidate, and new model
- Rubric — Six vane criteria with weights and pass thresholds
- Release — CI airlock blocks regressions before production
Pressure before production
Ship Writing Systems You Can Defend.
WriteGust is a Writing Flight Lab — wind-tunnel prompts, vane rubrics, and release airlocks so generated text fails in the bay, not in the inbox.