Perplexity

Sonar Reasoning Pro

Sonar Reasoning Pro is a proprietary model from Perplexity, released Mar 7, 2025. It costs $2 per million input tokens and $8 per million output tokens, with a 125K-token context window.

Developer
Perplexity
Released
Mar 7, 2025
Context window
125K
Price in / out, per 1M tokens
$2 / $8
Weights
Proprietary
Inputs
Text, Images
Reasoning
Yes
Tool use
No

Compare Sonar Reasoning Pro

Perplexity

An answer engine whose Sonar models are tuned for search with citations. Founded 2022, based in San Francisco. perplexity.ai

Questions

Who makes Sonar Reasoning Pro?

Sonar Reasoning Pro is made by Perplexity, founded 2022 and based in San Francisco.

How much does Sonar Reasoning Pro cost?

$2 per million input tokens and $8 per million output tokens, at its provider’s list price.

What is Sonar Reasoning Pro’s context window?

125K tokens (128,000).

Is Sonar Reasoning Pro open source?

No. Sonar Reasoning Pro is proprietary and served through its provider’s API.

Sources

Every number on this page comes from these sources; models without a published number show none. Download the data. Cite as “Nexus Explorer, nexus.inc/models”.