LanguageToolFree plan
Paid from
$24.9 a month
View plans and limitsUpdated 4 September 2026 · Independent comparison
LanguageTool vs Le Chat (Mistral):
which should you use?
LanguageTool and Le Chat (Mistral), side by side. Find the one that fits what you need to do.
Find your best fitThe 30-second answer
LanguageTool is built for writing, communication & language.
Le Chat (Mistral) notably strong on European languages, and the open weights can be run locally for confidential drafting.
Pricing, simplified
Start free. Upgrade when you need more.
Le Chat (Mistral)Free plan
Paid from
$14.99 a month
View plans and limitsThe 30-second comparison
If you only read one section, make it this one. Rows where both sides say the same thing are left out — the point is where they differ. Where each row came from is listed underneath.
| Category | LanguageTool | Le Chat (Mistral) | Better fit |
|---|---|---|---|
| What it's built for | Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers. | Notably strong on European languages, and the open weights can be run locally for confidential drafting. | LanguageTool |
| Fit for writing, communication & language | Built for this | Strong fit | LanguageTool |
| Free plan | Yes. Free tier covering basic grammar and spelling | Yes. Free tier, with $10 a month of API credits | Tie |
| Cheapest way to pay | $24.9 a month. | $14.99 a month. | Le Chat (Mistral) |
| What the paid tiers cost |
|
| Tie |
| What to watch out for | Owned by the same company as QuillBot since 2023. Month to month costs more than four times the annual rate, and there are four payment intervals to pick between, so the interval matters more than the tier. Prices are quoted inclusive of VAT. | Smaller ecosystem; fewer editing integrations than the majors. | Tie |
| Who it is usually for | students, working professionals, researchers | working professionals | Tie |
| Made by | Learneo — Redwood City, US. | Mistral AI — Paris, FR. | Tie |
LanguageTool is ahead on 2 of the 8 rows compared, 2 of them about how well it does the job itself, against 1 to Le Chat (Mistral). That is a clear lead rather than a tiebreaker.
LanguageTool
Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.
✓ The job is mainly writing, communication & language
✓ Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.
✓ You are among students or researchers
✓ It is built for writing, communication & language
Notably strong on European languages, and the open weights can be run locally for confidential drafting.
Le Chat (Mistral) is the better answer when the job is what it was built for rather than what the pick above does broadly.
✓ Notably strong on European languages, and the open weights can be run locally for confidential drafting.
✓ You want the cheaper paid plan, $14.99 against $24.9
✓ Free tier, with $10 a month of API credits
✓ It can run on hardware you control
How we know
Every row that separated these two, and where it came from. Nothing here is a hands-on test — if a line rests on a vendor’s own pricing page, it says so and links it.
| Row | Favours | Weight | Where it came from |
|---|---|---|---|
| What it's built for | LanguageTool | How well it does the job | From this site’s own catalogue record for each product — compiled by hand, not imported. How a product gets listed |
| Fit for writing, communication & language | LanguageTool | How well it does the job | Both products are listed under writing, communication & language in the catalogue, and this is the fit recorded against each listing. Everything listed under writing, communication & language |
| Cheapest way to pay | Le Chat (Mistral) | Everything else | From each vendor’s own pricing page. Dates and pages are listed below. |
The prices
LanguageTool. Read by hand off languagetool.org on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. languagetool.org/premium
Le Chat (Mistral). Read by hand off mistral.ai on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. mistral.ai/pricing
The ratings
The category these two share. Writing, Communication & Language — both are listed there in the catalogue, and the fit recorded against each listing is a judgement made here, by hand.
The nine-category grid below. Derived from what each product is listed for, by one script, once per build — so the same pair always reads the same. It is a derivation, not a review.
What this is not
Neither product was run side by side to produce this page. Nobody was paid to appear on it and nothing here is ranked by commission.
To put the same question to both and read the answers yourself, run them side by side — that is a live test, and this is not.
Choose based on what you’re doing
All ten categories, including the ones where neither of these is the answer. These ratings are derived from what each product is listed for, not from running it — a rating here is a reading of the record, and the record is linked.
01
General-Purpose AI Assistants
Questions, brainstorming, explanations, everyday tasks, decision-making, general advice.
LanguageTool
Not a good fitLe Chat (Mistral)
Good fitBest choice: Le Chat (Mistral)
02
Search, Research & Academics
Web research, deep research, books, academic papers, citations, news, fact-checking.
LanguageTool
Not a good fitLe Chat (Mistral)
Limited fitBest choice: Le Chat (Mistral)
03
Writing, Communication & Language
Emails, reports, essays, editing, summarizing, translation, presentations.
LanguageTool
Built for thisLe Chat (Mistral)
Good fitBest choice: LanguageTool
04
Coding, Data & Technical Work
Programming, debugging, data analysis, spreadsheets, math, engineering, technical research.
LanguageTool
Bad fitLe Chat (Mistral)
Limited fitBest choice: Le Chat (Mistral)
05
Business, Finance & Professional Work
Business strategy, investing, market research, legal, sales, HR, accounting, consulting.
LanguageTool
Not a good fitLe Chat (Mistral)
Limited fitBest choice: Le Chat (Mistral)
06
Image & Design
Image generation, photo editing, logos, graphics, product design, advertising creatives.
LanguageTool
Bad fitLe Chat (Mistral)
Bad fitBest choice: Neither
07
Video
Video generation and editing, clipping, subtitles, avatars, animation and motion capture.
LanguageTool
Bad fitLe Chat (Mistral)
Bad fitBest choice: Neither
08
Audio, Voice & Music
Voice generation, transcription, music, dubbing, sound cleanup and podcast production.
LanguageTool
Bad fitLe Chat (Mistral)
Bad fitBest choice: Neither
09
Marketing & Content Creation
Social media, SEO, advertising, copywriting, content ideas, scripts, brand development.
LanguageTool
Not a good fitLe Chat (Mistral)
Limited fitBest choice: Le Chat (Mistral)
10
Productivity, Automation & Personal Life
AI agents, workflows, scheduling, meetings, organization, shopping, travel, personal finance.
LanguageTool
Not a good fitLe Chat (Mistral)
Limited fitBest choice: Le Chat (Mistral)
Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.
by LearneoThe job is mainly writing, communication & language
Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.
You are among students or researchers
It is built for writing, communication & language
Notably strong on European languages, and the open weights can be run locally for confidential drafting.
by Mistral AINotably strong on European languages, and the open weights can be run locally for confidential drafting.
You want the cheaper paid plan, $14.99 against $24.9
Free tier, with $10 a month of API credits
It can run on hardware you control
Pricing, simplified
The plans people actually compare, read from each vendor’s own page.
PricingSimple, up-to-date plan overview.
Le Chat (Mistral)by Mistral AIFree version
LanguageTool
Yes — Free plan availableFree tier covering basic grammar and spelling
Le Chat (Mistral)
Yes — Free plan availableWith $10 a month of API credits
Individual plans
LanguageTool
Premium
$24.90 / month$16.63 / month (quarterly)$5.83 / month (annual)
Teams
$11.07 / month$11.07 / month (annual)
Le Chat (Mistral)
Pro
$14.99 / monthor $30 / month
Business plans
LanguageToolNot sold to teams
Le Chat (Mistral)
From $24.99 / user / monthTeam
Enterprise
LanguageToolNot published
Le Chat (Mistral)
Custom pricing
View full details
LanguageToolView LanguageTool pricing
Le Chat (Mistral)View Le Chat (Mistral) pricing
Tell us what you use AI for
Pick your main job and the verdict below changes to match. Every answer is on the page already, so this works as a reader, not a lookup.
The verdict for that job
LanguageTool
LanguageTool. It is built for writing, communication & language; Le Chat (Mistral) does it well without it being its focus; both have a free plan you can start on; Le Chat (Mistral) is cheaper to start paying for, $14.99 against $24.9.
8 rows compared
Frequently asked questions
Is LanguageTool or Le Chat (Mistral) better?
LanguageTool is ahead on 2 of the 8 rows compared, 2 of them about how well it does the job itself, against 1 to Le Chat (Mistral). That is a clear lead rather than a tiebreaker. LanguageTool is built for writing, communication & language; Le Chat (Mistral) does it well without it being its focus; both have a free plan you can start on; Le Chat (Mistral) is cheaper to start paying for, $14.99 against $24.9. LanguageTool: Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers. Le Chat (Mistral): Notably strong on European languages, and the open weights can be run locally for confidential drafting.
Is LanguageTool or Le Chat (Mistral) cheaper?
Le Chat (Mistral) — paid plans start at $14.99 a month against $24.9 a month.
Do LanguageTool and Le Chat (Mistral) both have free plans?
Yes. LanguageTool: Free tier covering basic grammar and spelling. Le Chat (Mistral): Free tier, with $10 a month of API credits.
What should I watch out for?
LanguageTool: Owned by the same company as QuillBot since 2023. Month to month costs more than four times the annual rate, and there are four payment intervals to pick between, so the interval matters more than the tier. Prices are quoted inclusive of VAT. Le Chat (Mistral): Smaller ecosystem; fewer editing integrations than the majors.
Read more
LanguageTool
What it is for, who makes it, what it costs and what to use instead.
Le Chat (Mistral)
What it is for, who makes it, what it costs and what to use instead.
Best AI for Writing
Emails, reports, essays, editing, summarizing, translation, presentations.