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Side-by-side comparison · AI Assistants & LLMs

Google Gemini vs LMArena 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.

Google Gemini

4.2

From US$4.99/mo

LMArena

3.8

Free to start

Perplexity

4.2

From $17/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: People whose work already runs on Gmail, Google Workspace or an Android phone.

Best value

Pick it if: Anyone choosing between AI tools, and people who want to know which model is leading right now.

Easiest to use

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

Overview

AttributeGoogle GeminiLMArenaPerplexity
In one lineGoogle's assistant, built into Gmail, Docs, Drive and Android phones.Free site where you compare AI models side by side and see which ones people rate best.Ask a question and get a short answer from the web, with links to every source.
Pricing modelFreemiumFreeFreemium
Starting priceUS$4.99/moFree$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.

AttributeGoogle GeminiLMArenaPerplexity
Overall rating4.23.84.2
Ease of useHow quickly someone non-technical gets value from it.
4.0
3.5
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.0
3.5
Output qualityHow good the results are before you fix them.
4.0
3.5
4.5
Value for moneyWhat you get for the price, including the free plan.
4.0
5.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.5
3.0
4.5

Feature comparison

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

AttributeGoogle GeminiLMArenaPerplexity
Access & platform
Free plan Yes Yes Yes
Mobile app Yes No Yes
Desktop app Yes No Yes
Browser extension Yes No Yes
API access Yes No Yes
Teams & business
Team workspace Yes No Yes
Enterprise plan or SSO Yes No Yes
Connects to other apps Yes No Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images Yes Yes Yes
Makes video Yes Yes Yes
Writes code Yes Yes Yes
Runs agents or automations Yes No Yes
Learns your brand or style Yes No No
Works in many languages Yes Yes Yes
Capabilities score16/ 177/ 1715/ 17

Pricing

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

AttributeGoogle GeminiLMArenaPerplexity
Plans

Free

Free

Light use and seeing how it feels.

FreeOur pick

Free

Everyone.

Free

Free

Everyday questions and quick fact-checks.

Google AI Plus

US$4.99/mo

Casual users who want Gemini in Gmail and more storage.

ProOur pick

$17/mo billed yearly

Anyone who researches as part of their job.

Google AI ProOur pick

US$19.99/mo

Anyone who works in Google Workspace every day.

Max

$167/mo billed yearly

Power users running the Computer agent all day.

Google AI Ultra

From US$99.99/mo

Heavy creative and agent users.

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 pickSkip the free plan for anything serious now that it's Flash-Lite only. AI Pro (US$19.99, or A$32.99 in Australia) is the one to buy: it's the cheapest way to get Gemini 4 Argon plus Gemini in Docs and Gmail, and the 5 TB of storage offsets a Google One bill. Ultra is for people generating video all day.There's nothing to buy. Use it free, and pay for whichever assistant comes out best for your work.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

AttributeGoogle GeminiLMArenaPerplexity
Standout features
  • Gemini in Gmail, Docs and Drive
  • Deep Research
  • Image and video making
  • Gemini Live and desktop apps
  • Tasks and connected apps
  • Gemini in Chrome
  • Battle mode
  • Side by side
  • Direct chat
  • Leaderboards
  • Agent mode
  • Early access
  • Cited answers
  • Deep research
  • Comet browser
  • Computer
  • Spaces
  • Choice of models

Pros and cons

AttributeGoogle GeminiLMArenaPerplexity
Pros
  • Reads and acts on your Gmail, Docs and Drive directly
  • AI Pro bundles the top model, Workspace features and 5 TB of storage for one price
  • Deep Research is included even on the free plan
  • Fast, and the mobile and Android experience is polished
  • Video and image generation included on paid plans
  • Desktop apps for Windows and Mac as well as the web
  • Free access to the leading models, often before release
  • Blind voting makes it easy to judge models on output alone
  • Leaderboards cover text, code, images, video and agents
  • Real people's preferences are harder to game than lab benchmarks
  • 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 plan is now Flash-Lite only, so it's weaker than the free tiers of ChatGPT or Claude
  • Plan names and model access keep changing, which is confusing
  • Writing quality sits behind Claude and the answers can be padded
  • Workspace features need a personal Google account or a Workspace admin to turn them on
  • Usage resets every 5 hours up to a weekly cap, and Google doesn't publish the numbers
  • Rankings favour answers that look good, and labs have been caught testing private versions to climb the board
  • Conversations are collected and partly shared with model makers, so keep private work out
  • Frequent "something went wrong" errors, captchas, logouts and models removed without notice
  • Direct chat is being narrowed, with newer models only available in random battles
  • The company now sells evaluations to the labs it ranks, which raises questions about neutrality
  • 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

AttributeGoogle GeminiLMArenaPerplexity
Best for
  • Searching and summarising your Gmail
  • Drafting in Google Docs
  • Image and video generation on paid plans
  • Hands-free help on Android
  • Choosing between AI models with your own prompts
  • Checking which model leads after a launch
  • Trying top models for free
  • Comparing image and video models
  • 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
  • Google Workspace teams
  • Marketers
  • Small business owners
  • Android users
  • AI enthusiasts
  • Developers
  • Product teams
  • Journalists
  • Researchers
  • Marketers
  • Consultants
  • Founders

Questions people ask

Which is better, Google Gemini, LMArena or Perplexity?

They tie on our overall rating (Google Gemini 4.2/5, LMArena 3.8/5 and Perplexity 4.2/5). Google Gemini is best for searching and summarising your Gmail and drafting in Google Docs. LMArena is best for choosing between AI models with your own prompts and checking which model leads after a launch. Perplexity is best for fact-checking and quick research and competitor and market research.

Which is cheaper, Google Gemini, LMArena or Perplexity?

Google Gemini: There's a free plan, and paid plans start at US$4.99/mo. LMArena: It's free to use. Perplexity: There's a free plan, and paid plans start at $17/mo.

Which is easier to use, Google Gemini, LMArena or Perplexity?

Perplexity rates highest for ease of use in our scores. Anyone who researches as part of their job and is sick of having ten tabs open.

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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