Concise writing with AI

Concision in an AI writer is a control you can see, not a promise in the marketing

Seven tools compared only on what makes text shorter and clearer: a shorten action, a length setting, a readability grade and a tone control, and which plan unlocks each. Prices were read on each vendor’s own page on 19 October 2026.

By Vincent Wesley Couey · Published 19 October 2026 · Prices read on each vendor's own page 19 October 2026 · 11 min read

Tool	Concision control	Free plan	Cheapest paid	Best for
Wordtune	Shorten or lengthen sentences	10 rewrites a day	$4.89/mo billed annually (Advanced)	Tightening your own sentences
Hemingway Editor	Readability grade, hard-sentence highlights	Online checker	$19.99 once (Editor 3 desktop)	Seeing the grade drop as you cut
QQuillBot	Shorten mode	Other modes; Shorten is Premium	Region dependent	Word-count limits on essays
Grammarly	Full-sentence rewrites, tone	Tone detection, 100 AI prompts a month	$12 USD (Pro)	Concise edits where you already write
Jasper	Adjust length, change tone	7-day Pro trial	$59/mo billed yearly (Pro)	Marketing teams with brand voices
Copy.ai	Length by prompt in chat	None stated	$24/mo billed yearly (Chat)	Drafting to a length you specify
Writer	Personality and voice profiles	14-day trial	Starter price not published	Enterprise style rules

Concision controls and prices, read on each vendor’s own page 19 October 2026. QuillBot’s premium page refused our reader; its help center says Premium pricing depends on region and plan.

Which AI writing tool is built for shorter writing?

A rewriter with a named shorten action is built for shorter writing, because it starts from your text and only removes words; Wordtune and QuillBot are the two tools here that name the action.

Concision in an AI writer is a control, not a promise: the useful tools expose a shorten action, a length setting or a readability grade you can see change. Wordtune’s own description says it can "lengthen or shorten sentences" and switch between formal and casual tones. QuillBot’s help center lists a Shorten mode that "Reduces word count while keeping the meaning", marked Premium.

This page answers one narrow question. For a broader ranking of AI writers on voice, long-form drafting and price, see our best AI writing tools guide.

What length and brevity controls exist, and on which plan?

Four controls matter: a shorten action, a length setting, a readability grade and a tone control, and most of them sit on paid plans.

Readability grade is a measurable proxy for concise prose, which is why an editor that scores sentences is a different purchase from a chat-based writer. Hemingway’s checker "highlights sentences that are hard to read", and its own page notes that the average reading level for adults in the United States is "only an 8th-grade level".

The federal plain language guidance on digital.gov sets the same goal for public writing, and Nielsen Norman Group’s research on web reading found that 79 percent of test users scanned new pages and only 16 percent read word by word. Short sentences are what a scanning reader actually takes in.

Rewriter or generator: which helps concision more?

A rewriter helps concision more when you already have a draft, because it tightens your words without inventing new ones; a generator helps only when you have no draft and can state a length.

Rewriters and generators solve opposite problems: a rewriter tightens text you already wrote, while a generator has to be told a length and can overshoot it. Jasper sits between the two: its editor lets you highlight text and "adjust the length" with one click, inside a tool built for drafting.

Copy.ai and Writer are generator platforms. Copy.ai’s Chat plan gives "Unlimited Words in Chat", and length comes from the instruction you write. Writer’s Starter plan includes "1 team Personality profile", which sets voice rather than length.

Brand voice and tone controls for teams

Teams that need short copy in one voice should look at Jasper or Writer, which store brand voice or personality profiles, rather than at single-user rewriters.

Jasper’s Pro plan includes "2 Brand Voices, 5 Knowledge assets and 3 Audiences". Writer’s Enterprise plan adds "Departmental brand and voice profiles", while its Starter plan covers up to five users. Grammarly Pro lets each writer adjust tone, but it is per person rather than a shared voice.

A shared voice does not make text shorter by itself. Pair it with a length rule in the prompt, or run the draft through a rewriter, and check facts after any AI edit; our note on AI detector false positives covers what happens when edited copy is screened.

What do the free plans allow, and what does each seat cost?

Free plans allow a taste: Wordtune gives 10 rewrites a day, Grammarly 100 AI prompts a month, and Hemingway’s online checker is free to use; paid seats run from $4.89 to $59 a month on annual billing.

Which tool for which writer?

Pick by whether you have a draft, whether you need a number to aim at, and whether a team shares one voice.

• You edit your own draftsWordtunebecause its shorten action works on your sentences, it is free for 10 rewrites a day, and Advanced is $4.89 a month billed annually.
• You want a target to hitHemingway Editorbecause the free checker shows a grade level you can push down, and the desktop app is a one-time $19.99.
• Students with word limitsQuillBot Premiumbecause its Shorten mode reduces word count while keeping the meaning; check the regional price before paying.
• You already write in GrammarlyGrammarly Probecause full-sentence rewrites and tone adjustment appear where you already type, at $12 as printed.
• Marketing team, one brand voiceJasper Probecause one-click length and tone changes sit next to stored Brand Voices, at $59 a month billed yearly.
• You draft from scratch in chatCopy.ai Chatbecause a word target in the prompt is the control, at $24 a month billed yearly; check the count before publishing.

If concision is the goal, buy a control you can see: Wordtune for shortening your own sentences, Hemingway for a readability grade, and Jasper only when a team also needs a shared brand voice.

The check and the prompt to keep

Use the six questions to choose a tool, and the prompt at the end with any chat-based writer when you need a hard length.

Comparing the two biggest chat assistants for prose? Claude vs ChatGPT for writing covers voice and long-form drafting, and our Jasper review goes deeper on its team features. For short client meeting recaps, the client-call note taker comparison covers summary-only sharing.

Frequently asked questions

Sources

1. Wordtune plans
2. Wordtune: what it does
3. QuillBot Help Center: paraphraser modes, Shorten (Premium)
4. Grammarly plans
5. Grammarly features
6. Jasper pricing
7. Writer plans
8. Hemingway Editor readability checker
9. Hemingway Editor 3 desktop
10. Copy.ai prices
11. Digital.gov plain language guide
12. Nielsen Norman Group: how users read on the web