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Head-to-head comparison

Sonar vs Sonar Pro

Sonar (Perplexity) and Sonar Pro (Perplexity) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 17 August 2026

As of 17 August 2026, Sonar holds the stronger ModelCap Index position (#196 vs #198); Sonar is 15× cheaper per output token ($1.00/1M vs $15.00/1M); and Sonar Pro offers the longer context window (200K vs 127K tokens).

Which should you choose?

Choose Sonar if…

  • you want the stronger overall ModelCap Index position — #196 against #198 (9.6 vs 8.6 points).
  • API cost matters — $1.00/1M output tokens against $15.00/1M, about 15× cheaper.
  • your workload is prompt-heavy — input tokens cost $1.00/1M against $3.00/1M.
  • Artificial Analysis Intelligence Index is your yardstick — 9.4 against 9.1.

Choose Sonar Pro if…

  • you need the longer context window — 200K tokens against 127K.
  • you want the more recently listed model — Sonar Pro was listed 7 March 2025, Sonar 27 January 2025.

Sonar vs Sonar Pro: specs, pricing and context

Specification comparison of Sonar and Sonar Pro
FieldSonarPerplexitySonar ProPerplexity
ModelCap Index position#196#198
Index score9.68.6
EvidenceMeasuredMeasured
Input price / 1M tokens$1.00$3.00
Output price / 1M tokens$1.00$15.00
Context window127K tokens200K tokens
Max output tokens—8K
API providers listed11
Weight accessAPI onlyAPI only
Input modalitiesText, ImageText, Image
First listed27 January 20257 March 2025
PublisherPerplexityPerplexity

Evidence: 1 public benchmark observation across 1 board · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Sonar vs Sonar Pro

Public benchmark boards where Sonar or Sonar Pro has a published result
BoardSonarSonar ProLeads
Artificial Analysis Intelligence IndexArtificial Analysis9.4intelligence-index9.1intelligence-indexSonar

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Sonar vs Sonar Pro: common questions

Is Sonar better than Sonar Pro?

Sonar ranks higher on the ModelCap Index as of 17 August 2026: #196 against #198. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is Sonar cheaper than Sonar Pro?

Sonar is cheaper on output tokens: $1.00/1M against $15.00/1M. Input tokens are $1.00/1M for Sonar and $3.00/1M for Sonar Pro. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, Sonar or Sonar Pro?

Sonar Pro has the larger context window: 200K tokens against 127K.

Which is better for coding, Sonar or Sonar Pro?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Sonar and Sonar Pro open-weight models?

Sonar: API only. Sonar Pro: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Sonar and Sonar Pro?

ModelCap currently lists 1 API provider for Sonar and 1 for Sonar Pro, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Sonar vs Sonar Pro comparison?

Every figure comes from the sealed ModelCap dataset published 17 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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