Prompt Length and Publish Rate: 734 AI Website Projects

Middle-length prompts did best. Of 734 We.Inc projects with a saved first prompt, those described in 41 to 100 words were published 32.7% of the time, against 7.9% for prompts of five words or fewer and 14.3% for prompts over 100 words. The median prompt was 16.5 words long.

Publish rate by first-prompt length, We.Inc projects, Mar 26 to Oct 27, 2026
Words in first prompt	Projects	Published	Publish rate
1 to 5	114	9	7.9%
6 to 15	232	45	19.4%
16 to 40	177	35	19.8%
41 to 100	113	37	32.7%
101 or more	98	14	14.3%

Updated October 28, 2026

Advice about writing prompts for website builders is mostly opinion. We counted instead. For every project where our builder saved the description a person typed to start the site, we measured its length in words and checked whether that project was later published to the web.

Publish rate by prompt length

Share of projects published, by words in the first prompt (n = 734)
	Value
1 to 5 words	7.9% (9 of 114)
6 to 15 words	19.4% (45 of 232)
16 to 40 words	19.8% (35 of 177)
41 to 100 words	32.7% (37 of 113)
101 words or more	14.3% (14 of 98)

Method and date range

Source: the We.Inc production database, queried read-only on October 28, 2026. Window: projects created from March 26, 2026 (the first stored starting description) to October 27, 2026.

Sample: 734 projects that have a non-empty starting description. Projects started from a template without typed text have no description and are not included. Of the 734, 140 were published (19.1%).

Definitions: words are runs of characters separated by whitespace. Published means the project has a recorded publish timestamp at the time of the query.

Exclusions: accounts on our own company domains, accounts flagged internal, addresses containing test patterns or plus-addressing, and known throwaway-mail bot domains were removed inside the query. Only counts left the database, and any group smaller than 20 projects would have been folded into a neighbouring band; none needed folding.

Limitations

One product, one period. Our pricing and onboarding changed several times between March and October, which shifts publish rates for reasons unrelated to prompts.
Only projects that saved a starting description are counted, so template-first projects are missing.
Word count is a blunt measure of quality; two prompts of the same length can be very different.

Cite this study

We.Inc, "Prompt Length and Publish Rate: 734 AI Website Projects", October 28, 2026, https://we.inc/research/website-prompt-length-and-publish-rate.

What the curve looks like

The publish rate climbs from 7.9% for very short prompts to around 19% for prompts of 6 to 40 words, peaks at 32.7% for 41 to 100 words, then falls back to 14.3% once a prompt passes 100 words.

The drop at the long end matches what we see in support: long prompts are often pasted documents, old website copy or lists of features, which describe content rather than the site someone wants.

A prompt shape that matches the best band

Name the business and place, say who the customers are, list three to five pages, describe the feel in a few words, and state the one action a visitor should take, such as booking or calling. That usually lands between 40 and 90 words.

How it works

Took every We.Inc project created between March 26 and October 27, 2026 that has a stored starting description, after removing team and test accounts.
Split each description on whitespace and counted the words inside the database, without exporting any text.
Marked a project as published if it has a recorded publish time.
Grouped projects into five length bands and computed the share published in each band.

Tips

Two or three sentences that name the business, the audience and the main action you want visitors to take is the range that published most often here.
A single phrase such as a business name gives the builder little to work with; that band had the lowest publish rate.
Very long prompts did not help. Pasting a whole brief or document often mixes instructions with content, which is better added after the first draft.
Treat these as correlations. People who write a thoughtful prompt may simply be more ready to launch.

Frequently asked questions

How long should a prompt for an AI website builder be?

In our data, prompts of 41 to 100 words had the highest publish rate at 32.7%. That is roughly a short paragraph covering what the business does, who it serves, the pages it needs and the tone.

Did published projects use longer prompts?

Slightly. The median published project started from 22.5 words, while the median unpublished one started from 16 words.

Does this prove a longer prompt causes publishing?

No. It shows an association in one product's data. Intent, budget and plan changes during the period also affect whether someone publishes.

Were any prompts read by a person for this study?

No. Word counts were computed inside the database and only the grouped totals left it. No prompt text was exported or reviewed.

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