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Updated 4 September 2026 · Independent comparison

DeepSeek vs LongCat:
which should you use?

DeepSeek and LongCat, side by side. Find the one that fits what you need to do.

Find your best fit

The 30-second answer

DeepSeek capable reasoning at no cost, with open weights you can download and run yourself. LongCat meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes.

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.

DeepSeek and LongCat side by side, with the better fit for each row.
CategoryDeepSeekLongCatBetter fit
What it's built forCapable reasoning at no cost, with open weights you can download and run yourself.Meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes.Tie
Free planYes. Free to use, weights downloadableYes. Free to use at longcat.chatTie
What to watch out forThe consumer app is hosted in China, which many employers and universities prohibit for work material. Self-hosting avoids this.Built for China first: the service runs from mainland China, data collected there is stored there, and its terms forbid commercial use of what it produces without Meituan’s permission.Tie
Who it is usually fordevelopers, people exploringpeople exploringTie
Runs on your own machineCan be run on your own machine, so the material never leaves it.Hosted service only — your material goes to their servers.DeepSeek
Made byDeepSeek — Hangzhou, CN.Meituan LongCat — Beijing, CN.Tie

DeepSeek is ahead on 1 of the 6 rows compared, 1 of them about how well it does the job itself. It is a single row of daylight, so read LongCat’s column before deciding.

Overall pick

DeepSeek

Capable reasoning at no cost, with open weights you can download and run yourself.

✓ Capable reasoning at no cost, with open weights you can download and run yourself. ✓ You would rather not take on a subscription at all ✓ The material cannot leave your own machine ✓ You are among developers
Choose LongCat instead if…

Meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes.

LongCat is the better answer when the job is what it was built for rather than what the pick above does broadly.

✓ Meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes. ✓ You would rather not take on a subscription at all ✓ Free to use at longcat.chat ✓ It is aimed at people exploring

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 1 row that decided this page, with the source for each.
RowFavoursWeightWhere it came from
Runs on your own machineDeepSeekHow 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

DeepSeek. Read by hand off chat.deepseek.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. chat.deepseek.com/pricing

LongCat. Read by hand off longcat.chat on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. longcat.chat

The ratings

The category these two share. General-Purpose AI Assistants — 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.

DeepSeek
Good fit
LongCat
Bad fit
Best choice: DeepSeek
02

Search, Research & Academics

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

DeepSeek
Limited fit
LongCat
Bad fit
Best choice: DeepSeek
03

Writing, Communication & Language

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

DeepSeek
Limited fit
LongCat
Bad fit
Best choice: DeepSeek
04

Coding, Data & Technical Work

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

DeepSeek
Limited fit
LongCat
Bad fit
Best choice: DeepSeek
05

Business, Finance & Professional Work

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

DeepSeek
Limited fit
LongCat
Bad fit
Best choice: DeepSeek
06

Image & Design

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

DeepSeek
Bad fit
LongCat
Bad fit
Best choice: Neither
07

Video

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

DeepSeek
Bad fit
LongCat
Bad fit
Best choice: Neither
08

Audio, Voice & Music

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

DeepSeek
Bad fit
LongCat
Bad fit
Best choice: Neither
09

Marketing & Content Creation

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

DeepSeek
Limited fit
LongCat
Bad fit
Best choice: DeepSeek
10

Productivity, Automation & Personal Life

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

DeepSeek
Limited fit
LongCat
Bad fit
Best choice: DeepSeek
Pick DeepSeek if

Capable reasoning at no cost, with open weights you can download and run yourself.

Hangzhou, CN
Capable reasoning at no cost, with open weights you can download and run yourself.
You would rather not take on a subscription at all
The material cannot leave your own machine
You are among developers
Pick LongCat if

Meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes.

by Meituan LongCat
Meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes.
You would rather not take on a subscription at all
Free to use at longcat.chat
It is aimed at people exploring

Pricing, simplified

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

PricingSimple, up-to-date plan overview.
DeepSeekby DeepSeek
LongCatby Meituan LongCat
Free version
DeepSeek
Yes — Free plan availableFree to use, weights downloadable
LongCat
Yes — Free plan availableFree to use at longcat.chat
Individual plans
DeepSeekFree plan only
LongCatFree plan only
Business plans
DeepSeekNot sold to teams
LongCatNot sold to teams
Enterprise
DeepSeekNot published
LongCatNot published
View full details
DeepSeekView DeepSeek pricing
LongCatView LongCat 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
DeepSeek
Close call. Both cover general-purpose ai assistants at the same level; both have a free plan you can start on.
6 rows compared

Frequently asked questions

Is DeepSeek or LongCat better?

DeepSeek is ahead on 1 of the 6 rows compared, 1 of them about how well it does the job itself. It is a single row of daylight, so read LongCat’s column before deciding. both have a free plan you can start on. DeepSeek: Capable reasoning at no cost, with open weights you can download and run yourself. LongCat: Meituan’s free chat on its own LongCat models, with Think, Search, Image, Video and Deep Research modes.

Is DeepSeek or LongCat cheaper?

Only one of the two publishes a ladder we have verified, so a like-for-like comparison is not possible yet.

Do DeepSeek and LongCat both have free plans?

Yes. DeepSeek: Free to use, weights downloadable. LongCat: Free to use at longcat.chat.

What should I watch out for?

DeepSeek: The consumer app is hosted in China, which many employers and universities prohibit for work material. Self-hosting avoids this. LongCat: Built for China first: the service runs from mainland China, data collected there is stored there, and its terms forbid commercial use of what it produces without Meituan’s permission.

Read more

DeepSeek

What it is for, who makes it, what it costs and what to use instead.

LongCat

What it is for, who makes it, what it costs and what to use instead.

Best AI Assistants

Questions, brainstorming, explanations, everyday tasks, decision-making, general advice.

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.