perplexity

Perplexity: Sonar Reasoning Pro

The Sonar Reasoning Pro is an AI model developed by Perplexity that supports text and image input modalities. It has a context length of 128,000 tokens, allowing for extensive information processing. The model also enables reasoning capabilities, but does not provide access to tools or structured output. For users seeking a paid option with robust performance, Sonar Reasoning Pro may be worth considering, particularly those who can justify the $2 input and $8 output token costs per million characters. Its blended benchmark score of 28.7 across one independent evaluation indicates competitive standing in this space; however, further analysis or additional benchmarks are necessary to fully assess its strengths and weaknesses.

Quality Score
76/100
price + capability + benchmarks
Input Price
$2.00
per 1M tokens · checked 2026-09-04
Output Price
$8.00
per 1M tokens · checked 2026-09-04
Context Window
128,000
tokens

Benchmark results

Independent, published benchmarks. Blended score 28.7 across 1 benchmark, last refreshed 2026-09-04. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 29.8
Model ID
perplexity/sonar-reasoning-pro
Vendor
perplexity
Released
March 2025
Tokenizer
Other
Input Modalities
text, image
Output Modalities
text
Max Output
115,200 tokens
Tool Calling
not supported
Structured Output
not supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
no
Moderated
no

What it costs in practice

Computed from the current $2.00/M input and $8.00/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.07
Classify 1,000 customer emails 500k in / 50k out $1.40
A month of a busy support chatbot 5M in / 2M out $26.00

Similar models

Quick answers

How much does Perplexity: Sonar Reasoning Pro cost?
$2.00 per million input tokens and $8.00 per million output tokens.
What is Perplexity: Sonar Reasoning Pro's context window?
128,000 tokens, roughly 192 pages of text in a single request.
Does Perplexity: Sonar Reasoning Pro support tool calling?
It supports a reasoning mode.
Can Perplexity: Sonar Reasoning Pro process images?
Yes, it accepts image input.