Swedemom butterfly markSwedemomswedemom.com · donated-goods e-commerce
Case study // Swedemom

The AI engine room of a donated-goods retailer.

Swedemom turns donated goods into funding for giving, selling tens of thousands of one-of-a-kind items a year on eBay. Every item is unique, so every item needs identifying, pricing, photographing, listing, and shipping. 616 has built and run the platform that does it since September 2023: the intake line, the listing pipeline, the warehouse floor, and the AI agents working inside all of it.

2.3xmonthly sales since 2023
−53%labor cost per new listing since 2024
3.1xnew items listed a month since 2023
5 daysintake to live listing, down from 20 in 2023

458,000+ items cataloged · 60,000 live listings · 400,000+ items sold

01 · The problem

Retail where nothing has a barcode twice.

A normal store sells the same product thousands of times. A donated-goods retailer almost never sells the same thing twice, so Swedemom's small crew had to figure out, for every single item, what it is, what it honestly sells for, and whether it's worth listing at all. That per-item judgment was the constraint capping the whole operation.

02 · The results

The best year in Swedemom's history.

Sales slid for five straight years before 2024. Then 2025 became the best year Swedemom has ever had, and 2026 is on pace to beat it by about 30%, with the holidays still ahead.

Annual sales Before 616 With 616
Sales, × the 2021-23 average01x2x2021 · 1.06x the 2021-23 average20212022 · 0.99x the 2021-23 average20222023 · 0.95x the 2021-23 average20232024 · 1.13x the 2021-23 average+13%20242025 · 1.85x the 2021-23 averagerecord+85%20252026 · 1.63x the 2021-23 average (through Sept 21)so far20262026 on pace for about 2.4x the 2021-23 average+140% on paceYear

Percentages are growth over the 2021-23 average. Sales include the shipping buyers pay. 2026 is through September 21, with the full-year pace from Swedemom's funding plan.

Output grew even faster. Swedemom now lists 3.1x as many new items a month as in 2023, and a new item goes live a median of 5 days after intake, down from 20.

New items listed per month 2023 With 616
New items listed02,0004,0006,000Jan 2023 · 1,572 new listingsFeb 2023 · 1,395 new listingsMar 2023 · 2,048 new listingsApr 2023 · 2,090 new listingsMay 2023 · 1,526 new listingsJun 2023 · 1,321 new listingsJul 2023 · 1,760 new listingsAug 2023 · 2,364 new listingsSep 2023 · 2,029 new listingsOct 2023 · 2,482 new listingsNov 2023 · 1,869 new listingsDec 2023 · 1,531 new listingsJan 2024 · 1,579 new listingsFeb 2024 · 1,665 new listingsMar 2024 · 1,731 new listingsApr 2024 · 1,858 new listingsMay 2024 · 2,193 new listingsJun 2024 · 1,514 new listingsJul 2024 · 2,091 new listingsAug 2024 · 3,127 new listingsSep 2024 · 2,504 new listingsOct 2024 · 3,007 new listingsNov 2024 · 2,465 new listingsDec 2024 · 2,582 new listingsJan 2025 · 3,010 new listingsFeb 2025 · 2,228 new listingsMar 2025 · 2,605 new listingsApr 2025 · 3,428 new listingsMay 2025 · 3,175 new listingsJun 2025 · 3,073 new listingsJul 2025 · 3,138 new listingsAug 2025 · 3,327 new listingsSep 2025 · 3,368 new listingsOct 2025 · 3,958 new listingsNov 2025 · 4,484 new listingsDec 2025 · 4,648 new listingsJan 2026 · 4,855 new listingsFeb 2026 · 5,414 new listingsMar 2026 · 5,654 new listingsApr 2026 · 5,775 new listingsMay 2026 · 5,433 new listingsJun 2026 · 6,010 new listingsJul 2026 · 6,468 new listingsAug 2026 · 6,505 new listings2023 avg 1,8322026 avg 5,764 · 3.1x2023202420252026Month

Donations were never the limit; labor was. Since 2024, the first year Swedemom tracked it, the labor cost to put one new item up for sale has fallen by more than half, even after hiring.

Labor cost per new listing
025507510020242024 · 100 (2024 = 100)10020262026 · 47 (2024 = 100)47 · −53%Labor cost per new listing (2024 = 100)

Tracked since 2024. Over the same period, new listings a month nearly tripled.

03 · AI on the production line

Photograph an item. Know what it's worth in seconds.

A worker photographs a donated item, and in seconds the platform identifies it from vision models, live marketplace comps, and Swedemom's own sales history, then says what it sells for and whether to produce, store, donate, or recycle it. For items worth listing, it drafts the whole listing. People decide; the system does the tedious part.

The Hub Sort screen: a photographed Logitech mouse identified in seconds, with a Produce verdict, 92 comparable sales, an estimated sale price, the margin, and a plain-English reason
Sort, for real: one photo to a Produce verdict, with comps, price, margin, and the reason why.
The Hub intake screen: one photo of a boxed walkie-talkie set, identified with related past listings, live comps, and a shipping estimate
Intake, for real: one photo, identified with live comps, past listings, and a ship estimate.
Faster by hand, too: since September 2023, hands-on time per item is down 32% for intake, 44% for description, and 52% for a final check.
The real-world test: on a university volunteer day, 20 students with a few minutes of instruction used Sort on their phones to process 1,216 donated items in about three hours.
Head to head: given the same photos as a venture-backed reseller app, Sort named 6 of 6 items correctly, against 4 of 6, because it knows 25 years of Swedemom's own sales and prices every item after shipping and fees.
04 · Agents on the tedious work

The most tedious jobs in the building, handed to agents.

Unsold listings used to sit still. Now an always-on relisting agent picks candidates and reposts them every day without anyone touching it: 60,000+ listings and $150,000+ in sales since early 2025.

Before anything goes live, someone has to give it a final check, about six minutes of staring per item. Now an agent does most of that staring: 79% of checks in August, work that would take about 500 hours by hand, for about $60 of compute. By September its share reached 82%, and the cost of a check was down 92% from late 2024.

Final check: who does the work By hand The agent
02,0004,0006,000Aug 2024Aug 2024 · 2,755 checks, all by hand2,755 · all by handAug 2026Aug 2026 · 1,294 checks by handAug 2026 · 4,793 checks by the agent (79%)6,087 checks · 79% by the agentFinal checks in the month

The part we're proudest of: nobody was laid off. The hours moved to judgment work, sourcing better items and handling the cases that genuinely need a human eye. Counting both agents and the per-item speedups, automation now does $36,000+ a month of work that would otherwise be done by hand.

05 · Measured, not guessed

Every dollar treated as an experiment.

Marketplace ads report inflated “attributed sales.” We ignore them and run randomized tests on ad rates, judged on one number: net profit after ad fees. The winning rates doubled net profit per listing in key segments, and ads that lost money were cut to zero.

The same discipline picks the AI: every model earns its place in blind-graded evaluations, and one test alone found a cheaper model that cut AI costs by about $900 a month at the same quality.

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