ChatGPT prompts for reselling: listings, replies and math
By Sloane Glitchford, Founder · Checked 25 Oct 2026, 14:49 UTC
Example ChatGPT prompts for resellers: eBay titles, descriptions from your notes, condition write-ups, item specifics, buyer replies and buy-or-pass math.
The short answer
ChatGPT can draft eBay listing titles, descriptions, condition notes, item-specifics checklists and buyer replies, and it can work through buy-or-pass math using numbers you give it. Treat every answer as a draft. OpenAI's own help page says ChatGPT "can produce incorrect or misleading outputs," that it "might sound confident—even when it's wrong," and advises: "Use ChatGPT as a first draft, not a final source. Please check important information." (OpenAI Help Center, "Does ChatGPT tell the truth?")
That matters on eBay. eBay's Seller Center asks you to "be accurate and transparent about your item's condition," and says you'll need to fill in all Required item specifics "for any new or revised listing." You're the one responsible for what the listing says. [2] [3]
The prompts below are our own examples, not OpenAI or eBay templates. Swap in your item's real details, and check the output against the item before you list.
Before you start: feed it facts, not guesses
- Give it your notes. Brand, model, size, color, flaws, what's included, and anything you measured or read off a label. The more of this comes from you, the less ChatGPT has to fill in.
- Don't let it invent specs. OpenAI lists "Incorrect definitions, dates, or facts" among the kinds of mistakes ChatGPT can make. If a detail isn't in your notes, tell it to write "unknown" rather than guess. [1]
- Prices come from you. Look up sold prices yourself and paste in the numbers you found. These example prompts never ask ChatGPT to pull eBay prices.
Example prompt: an eBay listing title
Example prompt: "Write five eBay listing titles for the item below. Each must be 80 characters or fewer. Put brand, model or type, then key details like color, size or model number. Use only the facts in my notes, with no hype words and no special characters. If something isn't in my notes, leave it out. My notes: [paste your notes]." (eBay title limit per [2])
Why these rules: eBay's Seller Center says "You've got 80 characters to use," and recommends including "the brand, model or type, color, style, and even the model number," while avoiding "special characters or irrelevant words." [2]
Check before you list: every word in the title matches the actual item, and the model number is copied exactly from the item or its label.
Example prompt: a description from your own notes
Example prompt: "Turn my notes into an eBay item description. Start with a two-sentence summary, then a bulleted list: what it is, condition, flaws, what's included, what's not included. Use plain language. Don't add features, specs or compatibility claims that aren't in my notes. Where my notes are unclear, write [CHECK] instead of guessing. My notes: [paste]."
eBay's Seller Center suggests the description include "the item's brand name, style, and model numbers, along with any unique qualities." It also points to eBay's own AI description tool, which "suggests an attention-grabbing item description at the touch of a button," and says you can "customize it to add more detail, adjust for accuracy, or fit your business' unique voice." Whichever tool you use, the accuracy check is yours. [2]
Check before you list: remove every [CHECK], and confirm the included and not-included lists against what's in the box.
Example prompt: a condition write-up
Example prompt: "Write a short, honest condition note for an eBay listing from these observations: [list each flaw, where it is and how big it is, plus whether you tested it and how]. Don't soften or leave out any flaw. Don't say 'like new' unless I did. End with one sentence telling the buyer the photos show the flaws listed."
eBay's Seller Center: "be accurate and transparent about your item's condition. By describing your item accurately, you can help customers understand what they're buying, which can reduce the chance of a return." It also suggests photos "highlighting all angles and any imperfections." [2]
Check before you list: the condition you pick in eBay's condition field matches the note, and every flaw in the note shows in a photo.
Example prompt: an item specifics checklist
Example prompt: "I'm listing a [item type] on eBay. List the item specifics a buyer would most likely filter by for this kind of item, e.g. brand, size, color, type, style, model. For each one, tell me where on the item or packaging I'd find the real value. Don't fill in values. I'll check them on the item."
eBay calls item specifics "descriptive keywords that tell a buyer about your item," which "may include brand, size, length, width, height, type, color, or style." It says buyers filter by them and "your item will only appear in those filtered search results if you've added the matching item specific." eBay labels item specifics as Required or Recommended and points sellers to the latest requirements for their categories, so go by eBay's labels for your category rather than ChatGPT's list. [3]
Check before you list: fill every Required specific on eBay's form from the item itself, not from ChatGPT.
Example prompt: a buyer message reply
Example prompt: "Draft a short, polite reply to this eBay buyer message: [paste message]. Facts you can use: [your answer, e.g. measurements, what's included, your shipping and return terms as set in the listing]. Don't promise anything that isn't in these facts. Keep it under five sentences and friendly but plain."
Check before you send: every fact in the reply matches your listing and your actual policies. If the reply promises something, make sure you'll do it.
Example prompt: buy-or-pass math with your own numbers
Example prompt: "Help me decide whether to buy this item to resell. Use only these numbers, which I looked up myself: my cost [ ], sold prices I found [ ], my estimated shipping cost [ ], and the selling fee rate from the platform's fee page [ ]. Show the math step by step: expected sale price, fees, shipping, cost, and what's left over. Then tell me the highest price I could pay and still keep [my target amount] after costs. Label anything you had to assume."
This is arithmetic on numbers you supply. It isn't a prediction. OpenAI says that, depending on your plan, ChatGPT may have a data analysis tool that "enables accurate calculations," but the result can only be as good as the numbers you put in. Check the fee rate on the platform's own fee page on the day you list, not from memory or from ChatGPT. [1]
Check before you buy: redo the key subtraction yourself. Any number ChatGPT labels as assumed is an estimate, not a fact.
What not to hand to ChatGPT
This part is our advice:
- Authenticity calls. Don't ask it to confirm whether an item is genuine. Check the item and the brand's own guidance.
- Specs you didn't verify. OpenAI warns about "fabricated quotes, studies, citations or references" and overconfident answers. Model numbers, compatibility and measurements should come from the item. [1]
- Passwords, account access or payment details. Keep them out of your prompts.
FAQ
What are good ChatGPT prompts for reselling? Prompts that turn your own notes into a draft: titles, descriptions, condition write-ups, item-specifics checklists, buyer replies and buy-or-pass math. Each example above tells ChatGPT to use only your facts and to flag gaps.
Can ChatGPT write my eBay listings? It can draft them, but OpenAI says to use it "as a first draft, not a final source," and eBay asks sellers to be accurate about the item and its condition. Check every detail against the item before you list. [1] [2]
Does eBay have its own AI listing tool? eBay's Seller Center mentions an AI tool that "suggests an attention-grabbing item description," which you can customize "to add more detail, adjust for accuracy, or fit your business' unique voice." [2]
How long can an eBay title be? eBay's Seller Center says "You've got 80 characters to use." [2]
Free card, and our playbook for AI agents
Sourcing at clearance racks? Grab the free Clearance Tag Quick Card, a one-page cheat sheet that separates what sources report about clearance tags from the myths. Our own product. [5]
If you want an AI agent, not just a chat window, to take on reseller chores, see The Clearance Cheat Sheet: AI Agent Playbook for Resellers ($25, our own product). Its listing describes it as "a PDF playbook plus 16 copy-paste prompts and 6 read-only routines that hand reseller chores to an AI agent," and says: "Everything stops for your approval before anything sends, buys, posts or deletes." It is written for Grok Bot, not ChatGPT: the listing says "Works with Grok Bot (needs a paid plan that includes it)." Get The Clearance Cheat Sheet: AI Agent Playbook for Resellers. No results are promised. [4]
Works with Grok Bot. Not affiliated with, endorsed or sponsored by SpaceXSI (xAI) or Cursor. Grok and Grok Bot are trademarks of their respective owners.
ChatGPT, OpenAI and eBay are named only to describe their products. We're not affiliated with or endorsed by OpenAI or eBay. Policies and features change. Everything above was checked against OpenAI's and eBay's pages on October 25, 2026.
Sources
- OpenAI Help Center, "Does ChatGPT tell the truth?" (official), checked 25 Oct 2026, 14:48 UTC
- eBay Seller Center, "Create great listings" (official), checked 25 Oct 2026, 14:49 UTC
- eBay Seller Center, "Item specifics" (official), checked 25 Oct 2026, 14:49 UTC
- The Clearance Cheat Sheet: AI Agent Playbook for Resellers on Whop (official), checked 25 Oct 2026, 14:49 UTC
- The Clearance Cheat Sheet: Clearance Tag Quick Card (Free) on Whop (official), checked 25 Oct 2026, 14:49 UTC