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Updated 4 September 2026 · Independent comparison

Grammarly vs Le Chat (Mistral):
which should you use?

Grammarly and Le Chat (Mistral), side by side. Find the one that fits what you need to do.

Find your best fit

The 30-second answer

Grammarly 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.

2 of 2 have a free plan 0 of 2 prices re-read automatically · how we know No paid placement

The 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.

Grammarly and Le Chat (Mistral) side by side, with the better fit for each row.
CategoryGrammarlyLe Chat (Mistral)Better fit
What it's built forWorks inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place.Notably strong on European languages, and the open weights can be run locally for confidential drafting.Grammarly
Fit for writing, communication & languageBuilt for thisStrong fitGrammarly
Free planYes. Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating textYes. Free tier, with $10 a month of API creditsTie
Cheapest way to pay$30 a month.$14.99 a month.Le Chat (Mistral)
What the paid tiers cost
  • One person, from $30/month
  • Enterprise, priced on request
  • One person, from $14.99/month
  • Per seat, from $24.99/month
  • Enterprise, priced on request
Tie
What to watch out forBetter at fixing than composing. It smooths writing toward a neutral register, which is not always what you want. The free tier caps generation at 100 AI prompts, and the enterprise tier now arrives through Superhuman Go rather than as Grammarly itself.Smaller ecosystem; fewer editing integrations than the majors.Tie
Who it is usually forstudents, working professionalsworking professionalsTie
Runs on your own machineHosted service only — your material goes to their servers.Can be run on your own machine, so the material never leaves it.Le Chat (Mistral)
What it asks of youNo setup — it works in a browser.Expects some technical comfort to get going.Tie
Made byGrammarly — San Francisco, US.Mistral AI — Paris, FR.Tie

Neither leads on the 10 rows above: 2 each. The job decides it, not the table.

Too close to call

Grammarly or Le Chat (Mistral)

Neither leads on the rows above — the job decides it.

✓ The job is mainly writing, communication & language ✓ Works inside the apps you already write in rather than a separate window, which is why it actually gets used. ✓ You would rather not configure anything first ✓ You are among students
Choose Le Chat (Mistral) instead if…

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.

✓ The job is mainly writing, communication & language ✓ Works inside the apps you already write in rather than a separate window, which is why it actually gets used. ✓ You would rather not configure anything first ✓ You are among students

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.

The 4 rows that decided this page, with the source for each.
RowFavoursWeightWhere it came from
What it's built forGrammarlyHow well it does the jobFrom this site’s own catalogue record for each product — compiled by hand, not imported. How a product gets listed
Fit for writing, communication & languageGrammarlyHow well it does the jobBoth 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 payLe Chat (Mistral)Everything elseFrom each vendor’s own pricing page. Dates and pages are listed below.
Runs on your own machineLe Chat (Mistral)How well it does the jobFrom this site’s own catalogue record for each product — compiled by hand, not imported. How a product gets listed

The prices

Grammarly. Read by hand off grammarly.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. grammarly.com/plans

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.

Grammarly
Not a good fit
Le Chat (Mistral)
Good fit
Best choice: Le Chat (Mistral)
02

Search, Research & Academics

Web research, deep research, books, academic papers, citations, news, fact-checking.

Grammarly
Not a good fit
Le Chat (Mistral)
Limited fit
Best choice: Le Chat (Mistral)
03

Writing, Communication & Language

Emails, reports, essays, editing, summarizing, translation, presentations.

Grammarly
Built for this
Le Chat (Mistral)
Good fit
Best choice: Grammarly
04

Coding, Data & Technical Work

Programming, debugging, data analysis, spreadsheets, math, engineering, technical research.

Grammarly
Bad fit
Le Chat (Mistral)
Limited fit
Best choice: Le Chat (Mistral)
05

Business, Finance & Professional Work

Business strategy, investing, market research, legal, sales, HR, accounting, consulting.

Grammarly
Not a good fit
Le Chat (Mistral)
Limited fit
Best choice: Le Chat (Mistral)
06

Image & Design

Image generation, photo editing, logos, graphics, product design, advertising creatives.

Grammarly
Bad fit
Le Chat (Mistral)
Bad fit
Best choice: Neither
07

Video

Video generation and editing, clipping, subtitles, avatars, animation and motion capture.

Grammarly
Bad fit
Le Chat (Mistral)
Bad fit
Best choice: Neither
08

Audio, Voice & Music

Voice generation, transcription, music, dubbing, sound cleanup and podcast production.

Grammarly
Bad fit
Le Chat (Mistral)
Bad fit
Best choice: Neither
09

Marketing & Content Creation

Social media, SEO, advertising, copywriting, content ideas, scripts, brand development.

Grammarly
Not a good fit
Le Chat (Mistral)
Limited fit
Best choice: Le Chat (Mistral)
10

Productivity, Automation & Personal Life

AI agents, workflows, scheduling, meetings, organization, shopping, travel, personal finance.

Grammarly
Not a good fit
Le Chat (Mistral)
Limited fit
Best choice: Le Chat (Mistral)
Pick Grammarly if

Works inside the apps you already write in rather than a separate window, which is why it actually gets used.

San Francisco, US
The job is mainly writing, communication & language
Works inside the apps you already write in rather than a separate window, which is why it actually gets used.
You would rather not configure anything first
You are among students
Pick Le Chat (Mistral) if

Notably strong on European languages, and the open weights can be run locally for confidential drafting.

by Mistral AI
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 $30
The material cannot leave your own machine
Free tier, with $10 a month of API credits

Pricing, simplified

The plans people actually compare, read from each vendor’s own page.

PricingSimple, up-to-date plan overview.
Grammarlyby Grammarly
Le Chat (Mistral)by Mistral AI
Free version
Grammarly
Yes — Free plan availableWriting without spelling and grammar mistakes, tone detection, and 100 AI prompts for
Le Chat (Mistral)
Yes — Free plan availableWith $10 a month of API credits
Individual plans
Grammarly
Pro $30 / month$12 / month (annual)
Le Chat (Mistral)
Pro $14.99 / monthor $30 / month
Business plans
GrammarlyNot sold to teams
Le Chat (Mistral)
From $24.99 / user / monthTeam
Enterprise
Grammarly
Custom pricing
Le Chat (Mistral)
Custom pricing
View full details
GrammarlyView Grammarly pricing
Le Chat (Mistral)View Le Chat (Mistral) pricing
Interactive

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
Evenly matched
Grammarly. 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 $30.
10 rows compared

Frequently asked questions

Is Grammarly or Le Chat (Mistral) better?

Neither leads on the 10 rows above: 2 each. The job decides it, not the table. Grammarly 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 $30. Grammarly: Works inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place. Le Chat (Mistral): Notably strong on European languages, and the open weights can be run locally for confidential drafting.

Is Grammarly or Le Chat (Mistral) cheaper?

Le Chat (Mistral) — paid plans start at $14.99 a month against $30 a month.

Do Grammarly and Le Chat (Mistral) both have free plans?

Yes. Grammarly: Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating text. Le Chat (Mistral): Free tier, with $10 a month of API credits.

What should I watch out for?

Grammarly: Better at fixing than composing. It smooths writing toward a neutral register, which is not always what you want. The free tier caps generation at 100 AI prompts, and the enterprise tier now arrives through Superhuman Go rather than as Grammarly itself. Le Chat (Mistral): Smaller ecosystem; fewer editing integrations than the majors.

Read more

Grammarly

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.

How we compare AI tools
Every row is generated from the same record the rest of the site is built on, so this page cannot drift from what we say elsewhere. We separate winner, tie and depends rather than forcing each category into a ranking, and we drop rows where both sides say the same thing. A pick is only called an overall pick when it leads on rows about how well the tool does the job; a lead that rests on price or audience alone is labelled as one. Nothing here is a hands-on test — how we know lists the source and date behind every deciding row.