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AI · head to head

Perplexity vs QuillBot

Perplexity logo

Perplexity

AI

AI-powered answer engine with citations

From
Free
Rated
-
Full reviewWebsite
QuillBot logo

QuillBot

AI

AI paraphrasing and writing tool

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Perplexity context window has been stealthily reduced despite prior claims of 1-million-token capacity; QuillBot free tier limited to 125-word paraphrases with only 2 modes
  • They diverge on capability: Perplexity covers Real-time web search, QuillBot covers Paraphrasing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Perplexity and QuillBot actually diverge.

Attributes where Perplexity and QuillBot differ
AttributePerplexityQuillBot
Pricing modelUnknownfreemium
PlatformsWeb, iOS, Android, Comet (AI browser)Web
Founded20222017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (AI).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Perplexity

  • Real-time web search
  • Source citations
  • Follow-up questions
  • File analysis
  • API access
  • Mobile apps
  • Ios support
  • Android support

Only in QuillBot

  • Paraphrasing
  • Grammar checking
  • Summarization
  • Citation generator
  • Microsoft Word
  • Google Docs
  • Browser-extension support

Both cover

  • Browser extension
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Perplexity

  • ai tools management
  • Workflow automation
  • Reporting

QuillBot

  • ai tools management
  • Workflow automation
  • Reporting

Both are used for ai tools management, workflow automation, reporting, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Perplexity

  • Context window has been stealthily reduced despite prior claims of 1-million-token capacity
  • Citations sometimes point to irrelevant or overly general articles that do not support the stated claims
  • Weak performance on complex multi-step reasoning and deep logic compared to dedicated reasoning LLMs
  • Web crawler ignores robots.txt directives and scrapes content from sites that explicitly opted out
  • Pro subscription quotas and feature access quietly reduced without user notification

QuillBot

  • Free tier limited to 125-word paraphrases with only 2 modes
  • Grammar checking is less robust than Grammaly
  • Writing analytics less advanced than top-tier competitors

Pricing, plan by plan

Perplexity

Free
  • FreeFree
    • Unlimited basic searches
    • 3 Pro Searches per day
    • 1 Research query per month
  • Pro$20/month
    • Unlimited Pro Searches
    • Advanced AI models
    • All free features
  • Pro Annual$200/year
    • Unlimited Pro Searches
    • Advanced AI models
    • All free features
  • Max$200/month
    • Unlimited Pro Searches
    • Labs multi-agent orchestration
    • Perplexity Computer with 19 AI sub-agents

QuillBot

Free
  • FreeFree
    • 125 words paraphrase
    • 3 modes
  • Premium$9.95/month
    • Unlimited words
    • All modes
    • Plagiarism checker

Which should you pick?

Choose Perplexity if

  • You need real-time web search.
  • You want to start without paying.
  • You work on Web, iOS, Android, Comet (AI browser).
  • You also want source citations.
Perplexity review

Choose QuillBot if

  • You need paraphrasing.
  • You want to start without paying.
  • You also want grammar checking.
QuillBot review

Questions people ask

Is Perplexity or QuillBot better?
Neither clearly leads. Perplexity starts at Free and QuillBot at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Perplexity or QuillBot?
Perplexity starts at Free and QuillBot at Free.
Does Perplexity or QuillBot run on more platforms?
Perplexity runs on Web, iOS, Android, Comet (AI browser). QuillBot runs on Web.
Can I use Perplexity for free?
Both have a free tier, so you can try either at no cost before committing.
What is Perplexity best used for?
Perplexity is most often used for ai tools management, workflow automation, reporting.
What can Perplexity do that QuillBot cannot?
Perplexity covers Real-time web search, Source citations, Follow-up questions, File analysis. QuillBot covers Paraphrasing, Grammar checking, Summarization, Citation generator. Both handle Browser extension, Web support.

Answered from the vendors’ own pages

Perplexity: Is Perplexity completely free?

Perplexity has a free tier with unlimited basic searches and 3 Pro Searches per day. Pro ($20/month or $200/year) and Max ($200/month) tiers unlock more advanced features like multi-model access and unrestricted queries.

Source
QuillBot: What is QuillBot pricing?

QuillBot uses a freemium model. Premium costs $19.95/month or $8.33/month ($100/year) when billed annually. The free tier provides basic paraphrasing with 125-word limit and 2 modes.

Source
Perplexity: What is the difference between Pro and Max?

Pro provides access to advanced AI models like GPT-5.2, Claude Sonnet 4.5, and Gemini 3 Pro. Max adds Labs for multi-agent orchestration, Perplexity Computer with 19 specialized AI sub-agents, and 10,000 Computer credits per month.

Source
QuillBot: What are QuillBot's paraphrasing modes?

QuillBot offers 10 specialized paraphrasing modes including Standard, Fluency, Creative, and the newly added Boomer Mode, providing unmatched flexibility at this price point.

Source
Perplexity: Can I use Perplexity offline?

No. Perplexity requires an active internet connection for all searches. The full answer service is not available offline.

Source
QuillBot: What features does the free plan include?

QuillBot's free plan includes paraphrasing (125-word limit, 2 modes), grammar checking with limited daily checks, summarizing (1,200-word limit), and basic translation.

Source
Perplexity: What platforms does Perplexity support?

Perplexity is available as a web application, iOS app, Android app, and as Comet, a dedicated AI browser for mobile (Android available, iOS in development).

Source
Perplexity: How reliable are Perplexity's citations?

Citations are a key feature of Perplexity, but users report that citations sometimes point to irrelevant or overly general articles that don't directly support the claims made.

Source
Perplexity: Does Perplexity's context window match the advertised 1 million tokens?

Perplexity had promoted a 1-million-token context window, but users have reported stealth reductions in the actual context capacity without public announcement.

Source
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