Model True Cost Per Accepted Trajectory & Scope a 3-Vendor Paid Pilot
Plug in quoted hourly rates, task duration, expected defect rates, and vendor take-rate below to expose hidden rework taxes before signing a production SOW.
Vendor Take-Rate & Effective Cost-Per-Accepted-Row Calculator
Adjust nominal hourly billing, minutes per trajectory, defect rate, and vendor gross markup to calculate 1,000-row production TCO and generate an SOW rework escrow clause.
Five Commercial SOW Clauses to Redline Before Wiring Pilot Funds
Procurement teams routinely save 18% to 35% on multi-quarter post-training agreements without lowering annotator pay simply by stripping five recurring vendor billing traps from standard order forms.
- Strike 'use-it-or-lose-it' 90-day prepaid credit expirations; mandate 12-month rollover across model checkpoints.
- Cap billable rubric-calibration and contributor-training hours at 8% of monthly production spend.
- Separate L1 maker hours from L2 QA reviewer hours so you never pay senior PhD rates for mechanical formatting checks.
- Tie final 20% milestone release to passing your automated schema, test-harness, and Cleanlab outlier scripts.
- Prohibit unapproved subcontracting to lower-wage third-party crowd agencies.
Copyable Pilot Specification (sow-rate-cap-and-escrow-exhibit.md)
Issue the identical specification artifact below to 2–3 independent candidates simultaneously so turnaround latency, edge-case adherence, and defect rates are measured on a controlled baseline.
# EXHIBIT B — COMMERCIAL BILLING CAPS & DEFECT REWORK ESCROW
1. All-Inclusive Hourly/Unit Rate: Quoted rates include workspace UI, VDI access, L2 QA review, and Slack PM coordination ($0 separate SaaS seat fee).
2. Calibration Cap: Billable onboarding and rubric-alignment hours shall not exceed 8.0% of monthly invoice total without written buyer sign-off.
3. Blind Acceptance Test: Buyer seeds 5% blind golden items per 250-row delivery lot.
4. Automatic Rework Escrow: Any lot scoring <96.0% on golden items or <0.84 Krippendorff's alpha is rejected in whole for 100% zero-cost replacement within 5 business days.Request 3 Unbundled Rate Quotes From Lab-Neutral Vendors
Submit your modality, target volume, and budget ceiling to receive side-by-side rate cards from vetted independent providers.