Nonprofit

Donor thank-you prompt

A copy-and-paste prompt for ChatGPT, Claude or Gemini that gets a professional donor thank-you on the first try, plus the cheapest model that does it well.

What most people type

thank you letter for a donor who gave $500 to our animal shelter

It works, but the AI has to guess your donor name, what the donation will fund and personal story or detail, so the first answer usually needs another round. The version below asks for exactly what a professional would deliver.

The better prompt

Write a thank-you letter to a donor who gave $500 to our animal shelter.

Use a warm, sincere, personal tone. Include:
- A thank-you in the opening that names the $500 gift.
- A short line on what the gift will help with: [what the donation will fund, e.g. a specific program or general care].
- One specific, true detail that makes it personal: [a short story or detail about an animal or recent outcome at the shelter].
- An invitation to stay involved: [one next step, e.g. a visit, volunteering or updates].
- A closing with the signer's name and title: [signer name and title], [shelter name], [contact info].

Address it to [donor name]. Keep it to one page, about 150-250 words. Add a line for [tax-deductible receipt wording or EIN, if applicable]. Don't invent figures, outcomes or claims about the shelter.

Replace the [brackets] with your details before you send it: one next step, e.g. a visit, volunteering or updates, signer name and title, shelter name, contact info, donor name, tax-deductible receipt wording or EIN, if applicable.

Why this version works

  • Added structure for a donor letter. Gives the assistant the parts a fundraiser would include.
  • Added placeholders for personal details. Specifics make the letter feel genuine, not generic.
  • Added receipt line and no-invention rule. Donor letters often need tax info; avoids made-up claims.
  • Set one-page length. A thank-you letter has a natural size.

What a professional donor thank-you prompt covers

  • Specific impact placeholder
  • Tax receipt line placeholder
  • Warm personal tone

Best AI model for this prompt

This is a light task: short personal letter; needs warm, solid writing but little reasoning. You don't need the most expensive model. The cheapest model at each company that handles it well:

CompanyModelPer usePer 1,000 uses
AnthropicClaude Haiku 5.5cheapest$0.00018$0.18
OpenAIGPT-6 Luna$0.00018$0.18
GoogleGemini 3.1 Flash-Lite$0.00053$0.53

Pay-per-use list prices for this prompt and its expected answer (about 320 tokens). On a monthly chat plan, the same choice shows up as more messages before you hit your limit. See today's AI prices.

Donor thank-you prompt for ChatGPT, Claude and Gemini (Nonprofit) · PromptSaver