Gavelist vs Estimint vs AuctionWriter
Published July 19, 2026 · Updated October 17, 2026 · Competitor pricing re-verified against vendor pricing pages October 2026 · By Ben Cope, founder of Gavelist. Gavelist is one of the three products compared here, so read it that way.
Gavelist is AI auction cataloging software that reads every photo in a lot, writes the title, description and condition, and exports ready-made files for HiBid (via Auction Flex 360), LiveAuctioneers, Proxibid, BidWrangler, AuctionNinja and Auction Flex 360, at $0.15 per lot pay-as-you-go or $79 a month for 1,000 lots, with 0% of auction sales. Gavelist bills per lot with no tier to fill, so the right pick of the three depends on how your volume and workflow are shaped; the table puts Gavelist's numbers first, with each rival's published figures dated.
| Feature | Gavelist | Estimint | AuctionWriter |
|---|---|---|---|
| What it is | Bulk cataloging: upload a whole sale, sort into lots, describe, export; keep your bidding platform | Suite: catalog, clerk, invoice and settle, consignor portal, e-signatures | Cataloging app on web and mobile, with offline cataloging |
| Photo analysis | Every photo per lot together, no per-lot limit (marks, labels, damage) | Up to 3 / 12 / 20 / 30 photos per item by plan | Up to 30 images per lot |
| Batch speed | Most sales up to 500 lots: under 10 min once describing starts | Not published as a lots-per-time figure | Not published |
| Pricing | $0.15/lot pay-as-you-go; $79 (1,000 lots), $160 (2,500), $250 (5,000) a month; $0.09/lot over a plan | Free (200 listings, 30 days); $29 (300), $89 (1,500), $149 (3,500), $249 (5,000) a month | Free (50 lots); 13 tiers from $99 (1,000 lots) to $2,289 (43,000) a month; custom above |
| Share of sales | 0% | None listed | None listed |
| Exports | Ready-made files for HiBid (via Auction Flex 360), LiveAuctioneers, Proxibid, BidWrangler, AuctionNinja and Auction Flex 360; Auctioneer Software workbook; eBay drafts CSV; generic CSV for other imports, such as Wavebid's | CSV export; lists AuctionFlex, Proxibid, BidWrangler, LiveAuctioneers, HiBid, Invaluable, eBay, Poshmark, Mercari | Exports to 18+ auction platforms, by its own count |
Competitor pricing and features reflect each vendor's published pages, verified October 12, 2026 against auctionwriter.com/pricing, estimint.com/pricing and estimint.com, and may change. Where a vendor does not publish a figure, we say so rather than estimate.
Price: how they bill is the real difference
Gavelist bills $0.15 per lot pay-as-you-go with no tier you are forced to fill, or $79 a month for 1,000 lots, and a month with no sale costs nothing. At the pay-as-you-go rate a 300-lot sale costs $45 and a 500-lot sale $75. The free trial covers 100 lots with no card, and its 30 days start when you first describe. On published prices (October 12, 2026), Gavelist costs less than Estimint below 194 lots a month, from 301 to about 1,111 lots and from 1,501 to about 1,777, and less than AuctionWriter up to about 9,900 lots and from 11,000 to about 12,100. Estimint's tiers cost less from 194 to 300 lots, from about 1,112 to 1,500 and from about 1,778 up to its 5,000-listing cap; AuctionWriter's cost less from about 9,900 to 11,000 lots and above about 12,100.
Photos: every photo per lot, or a cap
Gavelist reads every photo attached to a lot together, with no per-lot limit, which is how maker's marks, labels and damage on the back of an item end up in the description; lots with eight or more photos get their own AI pass. Most sales of up to 500 lots finish describing in under 10 minutes once describing starts.
The bottom line, measured
According to Gavelist production data through September 22, 2026, 96.3% of the 58,134 lots clients exported through Gavelist went out with no client edit to the AI-written title or description. One client supplied about 70% of those lots at 99.8%; across every other Gavelist client the figure is 88.2%. In September alone, 97.7% of 11,040 exported lots went out unedited. Gavelist also offers comps with a value range as a self-serve, opt-in add-on at $0.15 per lot (separate from the $0.15 description price; $0.25 with a product photo on the same lot), charged only when delivered: ranked comps attached to the lot, each showing its source, with current listings labeled as asking prices, so you choose which appear, as a starting value range. The free trial includes 10 comps lots. Gavelist was built for batch sales measured in hundreds or thousands of lots.
Method: a lot counts as edited if the client saved a change to its title or description in Gavelist before exporting; lots the AI regenerated count as unedited. The total includes 6,290 lots from snapshots backfilled for jobs created March 20 to April 12, 2026.
Which one is right for you?
Gavelist is best for
Batch sales (estates, consignment, commercial) of hundreds to thousands of lots, uneven monthly volume, lots with marks or damage on the back, and ready-made platform files with 0% of sales. According to Gavelist production data, 88% of lots across Gavelist clients shipped with no client edit to the AI title or description (96% including Gavelist's largest client), through September 2026.
Estimint may fit if
You want clerking, invoicing and settlement in the same system as cataloging, or you steadily catalog about 194 to 300, 1,112 to 1,500, or more than about 1,800 items a month.
AuctionWriter may fit if
You catalog on site from phones without Wi-Fi, or you steadily run about 9,900 to 11,000, or more than about 12,100, lots a month.
Run your own numbers: Cataloging ROI Calculator · deep dives: Estimint alternative · AuctionWriter alternative · what Gavelist is: auction cataloging software
What's the main difference between Gavelist, Estimint, and AuctionWriter?
Gavelist is a bulk cataloging workflow that reads every photo in a lot with no per-lot limit and exports ready-made platform files at $0.15 per lot with 0% of sales. Estimint bundles cataloging into a suite with clerking and invoicing; AuctionWriter is a web and mobile app billed in monthly lot tiers.
Which is cheapest for a 1,000-lot sale?
Gavelist: $79 for 1,000 lots on the Auctioneer plan, or $150 pay-as-you-go. AuctionWriter Standard is $99 for 1,000 lots and Estimint Pro is $89 for up to 1,500 listings (published prices, October 12, 2026).
Which tool analyzes multiple photos per lot?
Gavelist reads every photo attached to a lot together, with no per-lot limit, so maker's marks, labels and damage on the back reach the description; lots with eight or more photos get their own AI pass.
Who is Gavelist best for, and when may the others fit?
Gavelist is built for batch sales of hundreds to thousands of lots with ready-made platform files and 0% of sales. Estimint may fit if you want clerking, invoicing and settlement in the same system, or steadily catalog about 194 to 300, 1,112 to 1,500, or more than about 1,800 items a month; AuctionWriter may fit if you catalog on site from phones without Wi-Fi, or steadily run about 9,900 to 11,000, or more than about 12,100, lots a month.
Does Gavelist post my auction to HiBid?
No. Gavelist doesn't connect to HiBid or upload anything to it. It writes an Auction Flex 360 import: a lot-import CSV and a photo ZIP named by lot number. You import that file into Auction Flex 360, and Auction Flex uploads the auction to HiBid.
Is this comparison biased?
It's written by Gavelist, so read it that way — but every competitor claim here matches their own published materials, we name the cases where each rival is the better fit, and our unedited-rate figures are measured from client exports, not surveyed: a lot counts as edited if the client saved a change to its AI title or description in Gavelist before exporting. We also publish the caveat: one large client supplied about 70% of the lots, so we quote the rate with and without them.
Test all three on the same 50 lots
The honest comparison is your own sale. Upload 50 real lots to Gavelist free and compare the output, the review time, and the export against anything else.