Out-of-stock reply prompt
A copy-and-paste prompt for ChatGPT, Claude or Gemini that gets a professional out-of-stock reply on the first try, plus the cheapest model that does it well.
What most people type
customer wants to know when the blue version of our hoodie is back in stock, we don't have a date yet
It works, but the AI has to guess your next step for customer, alternative option and sender name / brand name, so the first answer usually needs another round. The version below asks for exactly what a professional would deliver.
The better prompt
Write a short reply to a customer asking when the blue version of our hoodie will be back in stock. We don't have a restock date yet, so say that honestly without guessing or promising one. Keep the tone friendly and professional. Briefly apologize for the wait, and thank them for their interest. Offer one clear next step: [next step, e.g. restock notification sign-up link, or a promise to follow up]. If useful, mention [alternative option, e.g. other colors or similar items]. Sign off as [sender name / brand name]. Give me the reply as a message I can paste into [channel: email, chat or social DM].
Replace the [brackets] with your details before you send it: alternative option, e.g. other colors or similar items, sender name / brand name, channel: email, chat or social DM.
Why this version works
- Stated honest no-date message clearly. Stops the assistant from inventing or implying a restock date
- Added tone and apology guidance. Customer replies need a warm, professional voice
- Added next-step and alternative placeholders. A useful reply gives the customer something to do
- Added channel and sign-off placeholders. Keeps the reply short and fitted to where it's sent
What a professional out-of-stock reply prompt covers
- Offer to notify or an alternative
- Short friendly
Watch out for
- Invents a restock date
Best AI model for this prompt
This is a light task: short customer reply with simple facts; a small model handles it reliably. You don't need the most expensive model. The cheapest model at each company that handles it well:
| Company | Model | Per use | Per 1,000 uses |
|---|---|---|---|
| Anthropic | Claude Haiku 5.5cheapest | $0.00007 | $0.07 |
| OpenAI | GPT-6 Luna | $0.00007 | $0.07 |
| Gemini 3.1 Flash-Lite | $0.00021 | $0.21 |
Pay-per-use list prices for this prompt and its expected answer (about 120 tokens). On a monthly chat plan, the same choice shows up as more messages before you hit your limit. See today's AI prices.