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Side-by-side comparison · AI Assistants & LLMs

Claude vs Perplexity vs DeepSeek

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Best overall

Claude

4.6

From $20/mo

Perplexity

4.2

From $20/mo

DeepSeek

3.8

From Pay per use

Comparing 3 tools, the maximum.

At a glance

Claude

4.6
Best overall

Pick it if: Anyone who writes, researches or makes decisions for a living, plus anyone curious about Claude Code.

Perplexity

4.2

Pick it if: Anyone who researches as part of their job and is sick of having ten tabs open.

DeepSeek

3.8
Best value

Pick it if: Anyone who wants a strong reasoning assistant for free, and developers watching their API costs.

Claude scores highest overall, but DeepSeek gives you more for your money. Which one is right comes down to what you value most.

Overview

AttributeClaudePerplexityDeepSeek
In one lineAnthropic's chat assistant, at its best on careful writing and long documents.Ask a question and get a short answer from the web, with links to every source.A free Chinese assistant that's strong at maths, logic and code.
Pricing modelFreemiumFreemiumFree
Starting price$20/mo$20/moPay per use
Free plan Yes Yes Yes
Works with Claude Code Yes Yes No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeClaudePerplexityDeepSeek
Overall rating4.6Winner4.23.8
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.5
3.5
FeaturesHow much it can do, and how well the pieces fit together.
4.5
3.5
3.0
Output qualityHow good the results are before you fix them.
5.0
4.5
4.0
Value for moneyWhat you get for the price, including the free plan.
4.5
4.0
5.0
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.5
3.5

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeClaudePerplexityDeepSeek
Access & platform
Free plan Yes Yes Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes No
Browser extension Yes Yes No
API access Yes Yes Yes
Teams & business
Team workspace Yes Yes No
Enterprise plan or SSO Yes Yes No
Connects to other apps Yes Yes No
Open source or self-hosted No No Yes
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images No Yes No
Makes video No Yes No
Writes code Yes Yes Yes
Runs agents or automations Yes Yes No
Learns your brand or style Yes No No
Works in many languages Yes Yes Yes
Capabilities score14/ 1715/ 178/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeClaudePerplexityDeepSeek
Plans

Free

Free

Trying it out and light daily use.

Free

Free

Everyday questions and quick fact-checks.

Chat appOur pick

Free

Anyone who wants a capable reasoning assistant at no cost.

ProOur pick

$20/mo, or $17/mo billed yearly

Anyone who uses it most days.

ProOur pick

$20/mo, or $17/mo billed yearly

Anyone who researches as part of their job.

API (deepseek-flash)

Pay per use, from $0.15 per million input tokens

Developers building cheap features into their own apps.

Max

From $100/mo

Heavy users and people living in Claude Code.

Max

$200/mo, or $167/mo billed yearly

Power users running the Computer agent all day.

API (deepseek-v4-pro)

Pay per use, from $0.66 per million input tokens

Developers who want the stronger model.

Team

From $20/seat/mo billed yearly

Businesses with 2 to 150 people.

Enterprise

See website

Teams that need admin controls and data protection.

Which plan to pickStart on Free to see if the writing suits you. Most people who stick with it move to Pro within a month; only go to Max if you hit the Pro limits every day or you're running Claude Code for hours at a time.Start free and see how often you hit the Pro search limit. If you research most days, Pro pays for itself in saved tabs. Max only makes sense if you're using the Computer agent heavily enough to burn through the credits.The app is free, so the only decision is whether the privacy trade-off is acceptable for what you're asking. If you need the model inside your own software, have a developer use the API or run the open model through a provider that keeps your data in Australia.

Key features

AttributeClaudePerplexityDeepSeek
Standout features
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Claude Code
  • Memory
  • Cited answers
  • Deep research
  • Comet browser
  • Computer
  • Spaces
  • Choice of models
  • Step-by-step reasoning
  • Free app
  • Open models
  • Cheap API
  • Code help

Pros and cons

AttributeClaudePerplexityDeepSeek
Pros
  • Writing sounds like a person and needs the least editing of any assistant
  • Handles long documents and messy briefs without losing track
  • Projects and memory mean you stop repeating the same context
  • Artifacts turn answers into real documents, slides and small apps
  • One subscription covers Claude Code as well
  • Sources on every answer make it the easiest assistant to fact-check
  • Short, direct answers instead of padded essays
  • Free plan is useful on its own and Comet is free
  • Lets you pick from the best models from several companies
  • Fast, and the mobile app is good
  • Free app with no paid tier, and strong at reasoning and code
  • API costs a fraction of the big US labs
  • Models are open, so you can run them where your data rules allow
  • Shows its reasoning so mistakes are easier to catch
Cons
  • Free and Pro usage limits can bite on a busy day
  • No video generation, and image generation is basic next to ChatGPT
  • Fewer third-party connectors and plugins than ChatGPT
  • Weak for long writing, planning or creative work
  • Credits and plan details for Computer are confusing and have changed often
  • Sources are sometimes low quality, so you still need to read them
  • Max is expensive for what most businesses need
  • Data goes to China and it's banned on Australian government devices
  • No image or video generation and almost no integrations
  • Service slows or drops out when demand spikes
  • Avoids or slants topics sensitive to the Chinese government
  • Writing quality is behind Claude and ChatGPT

Who each one is for

AttributeClaudePerplexityDeepSeek
Best for
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Fact-checking and quick research
  • Competitor and market research
  • Comparing products before you buy
  • Getting up to speed on a new topic
  • Maths, logic and step-by-step problems
  • Coding help
  • A capable free assistant
  • Cheap API access for your own apps
You'll find it used by
  • Writers and marketers
  • Founders
  • Consultants
  • Developers
  • Researchers
  • Marketers
  • Consultants
  • Founders
  • Developers
  • Students
  • Analysts
  • Budget-conscious founders

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability. The "Visit" buttons may use affiliate links, which never affect a score.

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