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Side-by-side comparison · AI Assistants & LLMs

Duck.ai vs Le Chat vs Perplexity

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

Duck.ai

4.0

From $9.99/mo or $99.99/yr

Le Chat

4.1

From $14.99/mo

Best overall

Perplexity

4.2

From $17/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Anyone who wants quick AI help without an account or a record of what they asked.

Pick it if: Teams that care where their data lives, and anyone after a capable assistant for less money.

Best overall

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

Overview

AttributeDuck.aiLe ChatPerplexity
In one lineDuckDuckGo's private AI chat: no account, no stored prompts, free to use.Mistral's fast European assistant, with a usable free plan and a cheaper Pro plan.Ask a question and get a short answer from the web, with links to every source.
Pricing modelFreemiumFreemiumFreemium
Starting price$9.99/mo or $99.99/yr$14.99/mo$17/mo
Free plan Yes Yes Yes
Works with Claude Code No No Yes

Rating breakdown

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

AttributeDuck.aiLe ChatPerplexity
Overall rating4.04.14.2Winner
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
3.0
3.5
3.5
Output qualityHow good the results are before you fix them.
3.5
3.5
4.5
Value for moneyWhat you get for the price, including the free plan.
4.5
4.5
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.5
5.0
4.5

Feature comparison

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

AttributeDuck.aiLe ChatPerplexity
Access & platform
Free plan Yes Yes Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes Yes
Browser extension Yes No Yes
API access No Yes Yes
Teams & business
Team workspace No Yes Yes
Enterprise plan or SSO No Yes Yes
Connects to other apps No Yes Yes
Open source or self-hosted No Yes No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images Yes Yes Yes
Makes video No No Yes
Writes code Yes Yes Yes
Runs agents or automations No Yes Yes
Learns your brand or style No Yes No
Works in many languages Yes Yes Yes
Capabilities score9/ 1715/ 1715/ 17

Pricing

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

AttributeDuck.aiLe ChatPerplexity
Plans

FreeOur pick

Free

Quick private questions with no sign-up.

Free

Free

Everyday questions and a look at the Work and Code modes.

Free

Free

Everyday questions and quick fact-checks.

Plus

$9.99/mo or $99.99/yr

Regular users who also want a VPN.

ProOur pick

$14.99/mo

Anyone who wants a capable daily assistant for less.

ProOur pick

$17/mo billed yearly

Anyone who researches as part of their job.

Pro

$19.99/mo or $199.99/yr

People who want the top models privately.

Team

$24.99/user/mo

Small teams that want shared billing and higher limits.

Max

$167/mo billed yearly

Power users running the Computer agent all day.

Enterprise

Custom

Organisations with compliance and custom needs.

Enterprise Pro

$34/seat/mo billed yearly

Teams that need admin controls and data protection.

Enterprise Max

$271/seat/mo billed yearly

Research teams working with large datasets and files.

Which plan to pickStay on Free unless you also want a VPN. Plus is good value if you'd pay for a VPN anyway. Pro is $19.99, the same as ChatGPT Plus or Claude Pro, so only pick it if anonymity matters more to you than features.The free plan is enough to see if the speed and tone suit you. Pro is good value at $14.99 and a sensible second assistant next to Claude. Students can get Pro for $5.99 a month for up to 12 months.Start free and see how often you hit the Pro search limit. If you research most days, Pro pays for itself in saved tabs. Its 4,000 bonus Computer credits are a one-off and run out after about 30 days, so don't count them as a monthly allowance. Max only makes sense if you're using the Computer agent heavily enough to burn through the credits.

Key features

AttributeDuck.aiLe ChatPerplexity
Standout features
  • No account needed
  • Anonymised prompts
  • Choice of models
  • Voice chat and images
  • Local chat history
  • Built into the browser
  • Fast answers
  • Work mode
  • Code mode
  • Documents and images
  • Memory
  • EU hosting and open models
  • Cited answers
  • Deep research
  • Comet browser
  • Computer
  • Spaces
  • Choice of models

Pros and cons

AttributeDuck.aiLe ChatPerplexity
Pros
  • No account, and prompts are anonymised and not used for training
  • Free access to models from OpenAI, Anthropic and Mistral in one place
  • Fast, clean and easy for anyone to use
  • Paid plans bundle a VPN and identity protection
  • EU hosting by default and open-weight models
  • Fastest responses in the category
  • Pro is cheaper than the equivalent OpenAI or Anthropic plan
  • Work mode runs real multi-step jobs across your apps
  • Clear, less preachy answers
  • 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
Cons
  • Free models are the small versions, so answers trail paid ChatGPT or Claude
  • No projects, connectors or spreadsheet uploads, and PDFs are capped at 15 to 50 pages
  • Usage limits aren't published as numbers
  • Privacy rests on DuckDuckGo's contracts with the AI companies, and some users report chat sync errors between devices
  • Reasoning and long-document quality trail Claude and ChatGPT
  • Smaller ecosystem of guides, plugins and community help
  • Free plan limits aren't published in plain numbers
  • The rename to Vibe and the new modes make it harder to find your way around
  • Weak for long writing, planning or creative work
  • Computer credits are confusing: Pro's bonus credits expire after about 30 days, and Comet's browser actions and Automations spend them
  • Sources are sometimes low quality, so you still need to read them
  • Max is expensive for what most businesses need

Who each one is for

AttributeDuck.aiLe ChatPerplexity
Best for
  • Quick private questions
  • Using AI without signing up
  • A shared or work computer
  • Voice chat and simple image making
  • Fast everyday questions
  • Privacy-conscious organisations
  • A cheaper paid plan
  • Reading and summarising documents
  • Fact-checking and quick research
  • Competitor and market research
  • Comparing products before you buy
  • Getting up to speed on a new topic
You'll find it used by
  • Privacy-minded professionals
  • DuckDuckGo users
  • Casual AI users
  • Students
  • Privacy-conscious teams
  • European businesses
  • Solo founders
  • Developers
  • Researchers
  • Marketers
  • Consultants
  • Founders

Questions people ask

Which is better, Duck.ai, Le Chat or Perplexity?

Perplexity scores highest overall in our ratings (Duck.ai 4.0/5, Le Chat 4.1/5 and Perplexity 4.2/5). Duck.ai is best for quick private questions and Using AI without signing up. Le Chat is best for fast everyday questions and privacy-conscious organisations. Perplexity is best for fact-checking and quick research and competitor and market research.

Which is cheaper, Duck.ai, Le Chat or Perplexity?

Duck.ai: There's a free plan, and paid plans start at $9.99/mo or $99.99/yr. Le Chat: There's a free plan, and paid plans start at $14.99/mo. Perplexity: There's a free plan, and paid plans start at $17/mo.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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