Softwr

Accounting & Finance · head to head

Brex vs Perplexity

Brex logo

Brex

Accounting & Finance

The financial stack for growing businesses

From
$29/month
Rated
-
Full reviewWebsite
Perplexity logo

Perplexity

AI Tools

AI-powered answer engine with citations

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Perplexity has a free tier, so it costs nothing to try first.
  • Each has a real cost: Brex the free Essentials tier is limited to two legal entities; Perplexity context window has been stealthily reduced despite prior claims of 1-million-token capacity
  • They diverge on capability: Brex covers Corporate cards, Perplexity covers Real-time web search.

Where they differ

Only the attributes on which Brex and Perplexity actually diverge.

Attributes where Brex and Perplexity differ
AttributeBrexPerplexity
Starting price$29/monthFree
Pricing modelfreemiumUnknown
Free tierNoYes
PlatformsWeb, Ios, AndroidWeb, iOS, Android, Comet (AI browser)
CategoryAccounting & FinanceAI Tools
Founded20172022

Identical on both: user rating (Not yet rated).

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 Brex

  • Corporate cards
  • Business accounts
  • Expense management
  • Bill pay
  • Travel
  • QuickBooks
  • NetSuite
  • Xero

Only in Perplexity

  • Real-time web search
  • Source citations
  • Follow-up questions
  • File analysis
  • Browser extension
  • API access
  • Mobile apps
  • Api support

Both cover

  • Web support
  • Ios support
  • Android support

What people use each for

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

Brex

  • Corporate cards with spend controls for startupsnot Perplexity
  • Expense management and reimbursementsnot Perplexity
  • Travel booking inside the spend platformnot Perplexity
  • Bill pay and accounting system syncnot Perplexity
  • Multi-entity spend management on the paid tiersnot Perplexity

Perplexity

  • ai tools managementnot Brex
  • Workflow automationnot Brex
  • Reportingnot Brex

Where each one falls short

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

Brex

  • The free Essentials tier is limited to two legal entities
  • Premium is $12 per user per month, so cost scales with headcount using the card
  • Enterprise and Smart Card pricing is not published
  • Eligibility criteria are not stated anywhere on the pricing page, which matters for a product that extends credit

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

Pricing, plan by plan

Brex

$29/month
  • EssentialsFree
    • Corporate cards
    • Expense management
    • Bill pay
  • Premium$12/month
    • Advanced controls
    • Custom approvals
    • Travel booking

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

Which should you pick?

Choose Brex if

  • You need corporate cards.
  • You work on Web, Ios, Android.
  • You also want business accounts.
Brex review

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

Questions people ask

Is Brex or Perplexity better?
Neither clearly leads. Brex starts at $29/month and Perplexity at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Brex or Perplexity?
Perplexity has a free tier; the other does not. Paid plans start at $29/month for Brex and Free for Perplexity.
Does Brex or Perplexity run on more platforms?
Brex runs on Web, Ios, Android. Perplexity runs on Web, iOS, Android, Comet (AI browser).
Can I use Perplexity for free?
Yes. Perplexity has a free tier, so you can try it without paying. Brex starts at $29/month.
What is Brex best used for?
Brex is most often used for corporate cards with spend controls for startups, expense management and reimbursements, travel booking inside the spend platform, bill pay and accounting system sync. Of those, corporate cards with spend controls for startups and expense management and reimbursements are not what Perplexity is typically brought in for.
What can Brex do that Perplexity cannot?
Brex covers Corporate cards, Business accounts, Expense management, Bill pay. Perplexity covers Real-time web search, Source citations, Follow-up questions, File analysis. Both handle Web support, Ios support, Android 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
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
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
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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