Listing moderation assistant
Hypothetical. Not a client, not a result.
// The problem
A second-hand marketplace's moderators cannot read every new listing, so fake listings and banned items sit live for hours before someone reports them.
// What we would build
A moderation assistant that reads every new listing and its photos, scores it against the marketplace's own rules, and sends doubtful ones to a person's review queue, with the reasons attached. It runs on an open-source model in the marketplace's own cloud account, because volume is high and listings include personal details; people make every final decision.
// What is in it
- Every new listing checked against your own rules
- Doubtful listings sent to a review queue with reasons
- Moderators decide, and their decisions improve the rules
- Works in the languages your sellers write in
- Runs in your own cloud account
// Stack
- Open-source model
- Next.js
- PostgreSQL
- Queue
- AWS
// estimate
- Build
- ≈ US$100,000 to US$153,000, delivered within 21 weeksCAD 142,400 to 217,700
- Hosting
- ≈ US$7,020 a monthCAD 10,000 a month
- Support
- ≈ US$2,500 a monthCAD 3,565 a month
Prices in your currency are estimates from today's Bank of Canada rate. All invoicing is in CAD or USD.
- AI route
- Open-source model
- Model running cost
- ≈ US$6,530 a monthCAD 9,300 a month
Timeline by milestone
- Discovery
- 2.9 to 3.4 weeks
- Specification and evaluation plan
- 0.4 weeks
- Design approved
- 2.4 to 3.9 weeks
- Core features
- 1.4 to 1.9 weeks
- Full build
- 0.9 to 1.4 weeks
- Working pilot
- 3.4 to 5.9 weeks
- Testing and fixes
- 0.9 to 1.9 weeks
- Launch
- 0.9 to 1.4 weeks
- Production
- 0.9 to 1.4 weeks
How it is paid
- Deposit 20%
- CAD 28,420 to 43,480
- Discovery 1.9%
- CAD 2,699.90 to 4,130.60
- Specification and evaluation plan 10.5%
- CAD 14,920.50 to 22,827.00
- Design approved 1.9%
- CAD 2,699.90 to 4,130.60
- Core features 5.7%
- CAD 8,099.70 to 12,391.80
- Full build 3.8%
- CAD 5,399.80 to 8,261.20
- Working pilot 31.6%
- CAD 44,903.60 to 68,698.40
- Testing and fixes 1.9%
- CAD 2,699.90 to 4,130.60
- Launch 1.9%
- CAD 2,699.90 to 4,130.60
- Production 10.8%
- CAD 15,346.80 to 23,479.20
- Holdback, 30 days after launch (10%)
- CAD 14,210 to 21,740
- GPU time for training and testing, at cost
- CAD 300. Billed up front, at cost, outside the milestones