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Sonar Reasoning Model Specs, Costs & Benchmarks (August 2025)

Sonar Reasoning, developed by Perplexity, features a context window of 127K tokens. The model costs $1.00 per million tokens for input and $5.00 per million tokens for output. It was released on January 29, 2025, and has achieved impressive scores in various benchmarks.
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Overview

Sonar ReasoningSonar Reasoning
Model Provider
The organization behind this AI's development
Perplexity logoPerplexity
Input Context Window
Maximum input tokens this model can process at once
127K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
Not specified
tokens
Release Date
When this model first became publicly available
January 29th, 2025

Pricing

Sonar ReasoningSonar Reasoning
Input Token Cost
Cost per million input tokens
$1.00
per million tokens
Output Token Cost
Cost per million output tokens
$5.00
per million tokens

Capabilities & Features

Sonar ReasoningSonar Reasoning
Input Types
Supported input formats
text
Output Types
Supported output formats
text
Tokenizer
Text encoding system
Other
Key Features
Advanced capabilities
✓ Reasoning Mode

Benchmarks

Sonar ReasoningSonar Reasoning
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Not available
MMMU
Measures understanding of combined text and images across various domains
Not available
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Not available

Compare This Model

See how Sonar Reasoning compares with other top models