Sonar Reasoning Pro
Perplexity
Sonar Reasoning Pro is a closed, web-grounded reasoning model/API from Perplexity for complex multi-step analysis and strategic decision-making. It uses enhanced Chain-of-Thought reasoning with web retrieval and citations, emits a visible <think> section, and accepts text and image input. Perplexity advertises a rounded 128K context length but has not published an exact context count, parameter count, underlying architecture or lineage, or day-level release date.
Benchmark scores
| Benchmark | Score |
|---|---|
| Artificial Analysis Intelligence Index | 17.8 |
| MATH-500 (Artificial Analysis source) | 95.7 |