The best prompts in this app are short. We have read thousands of them. The ones that produce the most believable finished photos are usually under twelve words. Long, detail-stacked prompts mostly produce more obvious AI artefacts, not better ones, because the model has too many constraints to satisfy at once.
This article is a constrained writing exercise. Ten words. Six ingredients. One sentence. It is the prompt-engineering version of write the postcard before you book the trip.
The exercise
Write a prompt that is exactly ten words or fewer. It must answer the six questions from Anatomy of a Perfect Prompt:
- Place
- Time of day
- Light source
- Surface in front of you
- Depth behind you
- Mood
You cannot fit all six in ten words by writing each one out as a sentence. You have to compress. Compression is the whole point.
Why ten
Ten is short enough to force you to drop adjectives and brand names. It is long enough to fit each of the six ingredients as one or two words. It happens to be where empirical results plateau — prompts in the 7-12 word range produce the highest believability rates on first generation.
We are not religious about ten. Twelve is fine. Fifteen is the upper end. Past about twenty, the model starts substituting its own averages for your specifics, and the result gets blander.
Worked examples
Every example below is exactly ten words and answers all six ingredient-questions.
A cafe at golden hour
Window cafe seat, late afternoon, warm side light, marble table, quiet street.
- Place: window cafe seat
- Time: late afternoon
- Light source: warm side light
- Surface: marble table
- Depth: street through the window (implied by window)
- Mood: quiet
A hotel lobby in the evening
Empty hotel lobby, evening, warm lamps, low table, reception behind, calm.
- Place: hotel lobby
- Time: evening
- Light source: warm lamps
- Surface: low table
- Depth: reception behind
- Mood: calm
A train window, morning
Train window seat, early morning, low sun, folded laptop, carriage receding, calm.
- Place: train window seat
- Time: early morning
- Light source: low sun
- Surface: folded laptop
- Depth: carriage receding
- Mood: calm
A late-night desk
Home desk, late night, warm lamp, open notebook, dark room behind, quiet.
- Place: home desk
- Time: late night
- Light source: warm lamp
- Surface: open notebook
- Depth: dark room behind
- Mood: quiet
An airport gate
Airport gate, late evening, fluorescent light, metal armrest, window behind, sleepy.
- Place: airport gate
- Time: late evening
- Light source: fluorescent
- Surface: metal armrest
- Depth: window behind
- Mood: sleepy
A balcony in summer
Hotel balcony, golden hour, warm sunlight, iron railing, rooftops below, calm.
- Place: hotel balcony
- Time: golden hour
- Light source: warm sunlight
- Surface: iron railing
- Depth: rooftops below
- Mood: calm
What the exercise teaches
When you do this exercise for the first time, three things tend to happen.
- You realise how much room you usually waste on adjectives. Beautiful, cosy, atmospheric, cinematic. None of these survive a ten-word limit, and the results are not worse for it.
- You start treating time of day as a real ingredient, not a decoration. Late afternoon and early morning are doing actual work in these prompts. Without them, the model defaults to generic daytime, which is one of the most unconvincing lighting conditions in photography.
- You stop describing yourself. The selfie covers you. The ten words are entirely about the room. This is the single biggest mindset shift, and it survives even after you start writing longer prompts again.
When ten is too short
Some scenes need a few extra words. Two-light-source settings (airports, restaurants), foreground-heavy settings (balconies, desks with several objects), and settings that need a sparseness qualifier (almost empty, no signage) sometimes overflow.
The honest rule: start with ten, and only add words that the previous version was clearly missing. Each added word should fix a specific failure mode. Almost empty is a justifiable addition; beautiful is not.
A short closing point
Most of the prompt failures we see are paragraph-length and detail-stacked. Most of the prompt successes are short, plain, and answer the six questions. If you only remember one thing from this article: the model rewards specificity over enthusiasm. Ten words is enough to be specific. It is not enough to be enthusiastic. That is the point.
Related reading
- Anatomy of a Perfect Prompt
- The Best Travel Settings to Use in a Prompt
- Lighting Tips for Believable Composite Photos
Try it yourself
Write a ten-word prompt and run it free at btdt.fun. Three credits, no card on file. Spend the second credit on the same prompt with a few words changed — that is where most of the learning happens.