Desk research

Perplexity in Best AI Search Engine

Answer in brief

AI answer engine with a Deep Research mode that runs many searches, reads sources and writes a cited report.

Best for

Fast cited overviews and first-pass scans

Pricing

Pro: $20/month per third-party pricing summaries. Max: $200/month per third-party pricing summaries; Enterprise pro: $40/seat/month or $400/seat/year (enterprise-prod.perplexity.ai mirror and help-center snippet; not confirmed on the live official page). Enterprise max: $325/seat/month or $3,250/seat/year (third-party sources only).

What it covers

Open web search; reads web pages and documents during research.

Citations and verification

Inline citations: Yes, sources are cited in answers (per Perplexity's Deep Research launch page and G2 reviewer comments)..

API

Name: Perplexity Agent API (Sonar Deep Research migrating to Agent API high effort). Link: https://docs.perplexity.ai/docs/agent-api/quickstart. Notes: Pay-as-you-go, no subscription. Sonar Chat Completions support ended Sept 27, 2026 per the Sonar migration page. Per-token pricing for Deep Research not published on the page reviewed. Enterprise Pro does not include API access (third-party sources)..

Strengths and limitations

Strengths

Official launch page says a query can run dozens of searches and read hundreds of sources, finishing in a few minutes.
Cited answers make it quick to check claims against original pages.
Available across Free, Pro, Max and Enterprise tiers, so teams can start on a low plan.

Limitations

Deep Research caps are not published and reportedly were cut in early 2026 without notice (third-party reports).
Independent accuracy data conflicts; one 2026 blog reports roughly 1-in-12 citation failures, and no rigorous independent benchmark was found.

Third-party ratings

G2: Overall Perplexity product rating, not Deep Research specific.

Dated facts

Deep Research launched February 14, 2025 (Perplexity launch page), free for all users with higher limits for Pro.
Sonar Chat Completions support ended September 27, 2026, with requests moving to the Agent API (Perplexity docs).

Perplexity or Hyperresearch?

Choose Perplexity for fast cited overviews and first-pass scans. When an agent needs one checked answer rather than a list of links, Hyperresearch Answers is our editorial choice: it scored 89% on BrowseComp in its own run, and every quote it returns is matched to its source page.

Sources for this entry

Vendor descriptions are attributed to the vendor. Prices change; confirm with each vendor.

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Cite this entry

Best AI Search Engine. “Perplexity in Best AI Search Engine.” Hyperresearch reference, reviewed 7 November 2026.
https://bestaisearchengine.com/resources/perplexity/