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Pick two models and see what each costs, how well it works and what it's actually for. The scores are my own judgment on a 1–5 scale from using these — not vendor claims and not benchmark results. Your picks stay in the address bar, so you can send the comparison to someone else.

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Search, answers and research

Perplexity

Perplexity AI

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Free value

4/5

Performance

5/5

Range of uses

4/5

Cites its sources, which makes it the one to use for anything factual.

Published benchmark scores
  • SimpleQA (F-score)85.8

    factual accuracy on short questions with one checkable answer · tested: Perplexity Sonar Pro

    Perplexity's own Sonar Pro announcement · 21 January 2025 · maker's own figures

    The maker's own figure. It is the number they lead with, and no independent tester has published a comparable SimpleQA run for Sonar Pro.

  • MMLU80.1%

    broad multiple-choice general knowledge · tested: Perplexity Sonar

    TPS Report · model released 27 January 2025 · independent

  • HumanEval72.5%

    small Python programming problems solved correctly · tested: Perplexity Sonar

    TPS Report · model released 27 January 2025 · independent

  • GPQA48.0%

    graduate-level science questions · tested: Perplexity Sonar

    TPS Report · model released 27 January 2025 · independent

  • SciCode22.9%

    scientific coding problems solved correctly · tested: Perplexity Sonar

    Benchmark List · 21 July 2026 · independent

Perplexity benchmarks its Sonar models rather than the search product you use in the browser, so read these as a floor, not a ceiling. The headline factuality figure is Perplexity's own, from the Sonar Pro launch post.

Figures copied from the sources above, checked 17 September 2026.

Cost
Free plan; Pro $20/month, Max $200/month.
Performance
Cites its sources on every answer, which makes it far safer than a plain chatbot for anything factual.
Use it for
  • Researching an employer before an interview
  • Checking a salary range
  • Finding the original source of a claim
Keep in mind
Follow the citations. It sometimes summarizes a source more confidently than the source does.