Auction Cataloging ROI Calculator
Manually cataloging auction lots costs 3–6 minutes of staff time per lot — roughly $1,100–$2,200 in labor per 1,000-lot sale at $22/hour. AI cataloging replaces the writing but not the judgment: honest math includes review time. Across 24,756 real client lots on Gavelist, 99.5% of AI descriptions were accepted, 98.8% published untouched, and about 1 in 195 was rewritten — in practice a 1,000-lot sale drops to about 2–3 hours of detailed review with fewer than 50 lots touched. Adjust every assumption below to fit your operation.
Your numbers
Cataloging only — titles, descriptions, condition. Photography excluded from both sides.
Gavelist is $0.15/lot PAYG — but enter any tool's price.
Client-reported: a 1,000-lot sale typically takes 2–3 hours of detailed review.
Measured: under 5% of lots get edits or small additions (≈1 in 195 fully rewritten).
Manual cataloging
$1,467
66.7 hrs of staff writing
AI cataloging (all-in)
$242
$150 AI + $92 review labor (4.2 hrs)
You save per sale
$1,225
94% less staff time
Staff hours back
62.5 hrs
Redeploy to consignor intake, marketing, pickup days
Where these defaults come from (the honest part)
- • Review time is included on the AI side — most ROI pitches skip it.
- • Acceptance data: 24,756 real client lots — 99.5% accepted, 98.8% published untouched, ~1 in 195 rewritten.
- • Client-reported: 1,000 lots went from days of cataloging to 2–3 hours of review with <50 lots touched.
- • Processing speed (1,000+ lots ≈ 10 minutes) is excluded from labor on both sides — it runs unattended.
- • Photography time is excluded from both sides; you shoot the same photos either way.
Cataloging Cost Questions
Does AI cataloging really eliminate the work?
No — it eliminates the writing. You still review, and this calculator charges for that honestly. The measured outcome across 24,756 lots: 99.5% accepted, ~1 in 195 rewritten, and a 1,000-lot sale needing about 2–3 hours of review.
Why exclude photography from the comparison?
You photograph lots the same way whether a human or an AI writes the description, so it cancels out. This tool compares only the cataloging labor that actually changes.
What if my catalogers are faster than 4 minutes a lot?
Drag the slider down. Even at 2 minutes per lot, 1,000 lots is 33 staff hours of writing — against roughly 3 hours of review plus $150 in AI fees.
Is there a percentage of sales fee?
Not with Gavelist — $0.15 per lot pay-as-you-go or flat monthly plans. Enter any competitor's per-lot price above to compare like-for-like.
Related tools: Buyer's Premium Calculator · Consignment Payout Calculator · How Gavelist works
See the math on your own sale
Upload your next sale's photos and watch 1,000+ lots catalog themselves in about 10 minutes — then judge the review time for yourself. $0.15/lot, no percentage of sales.