Event Invitation Wording

EverydayWriting

Give the event, the date, place and RSVP method, and tone, and get invitation wording of a few sentences.

Fill the blanks and it copies as you filled it

Write invitation wording for .

- Event type: 
- Must include: 
- Tone: 
- Output:  invitation text,  sentences

0 of 6 blanks filled · anything left blank copies with its brackets

Compared with asking the same thing without the length and format lines.estimate

Estimated output tokens

1,400

Asked loosely

1,400

This prompt

Energy (Wh)

1.215

Asked loosely

1.215

This prompt

Tokens estimated from characters; energy measured by Jegham et al. 2025.

A shorter answer, but the same energy band — the measurements are per band.

Reported backfire — Specifying output lengthSpecifying a length longer than needed backfires (a 34% increase in 11% of scenarios)

Reported backfire — Asking for several options at onceAn increase of over 50% in 9% of scenarios. Don't use it on questions with one right answer

Where these figures come from

Published figures for the rule itself — not what this prompt saves.

Specifying output length

38.7%mean reduction · 95% CI 29.7–47.7%

Podder et al. 2026 BP#5 · 18 use cases / 57 prompts

by modelGPT-4o 35%Command R+ 49%Mistral-7B 32%

Reduced in every scenario. No backfire reported

Asking for several options at once

36%mean reduction · 95% CI 25–47%

Podder et al. 2026 BP#1 · 22 use cases / 71 prompts

by modelGPT-4o 50%Command R+ 44%Mistral-7B 39%