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Perplexity

Sonar Reasoning Pro API

Perplexity
About

Build advanced reasoning agents with Sonar Reasoning Pro, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $2.00/1M input and $8.00/1M output tokens. Access Sonar Reasoning Pro via the Perplexity API with up to 4K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
4K

Tokens

Pricing

Standard (per 1M tokens)

Input
$2.00
Output
$8.00
Frequently Asked Questions

Sonar Reasoning Pro by Perplexity costs $2.00 per 1M input tokens and $8.00 per 1M output tokens.

Model Details
ID
sonar-reasoning-pro
Provider
Perplexity
Family
sonar-reasoning
Release Date
Jan 1, 2024
Knowledge Cutoff
Sep 1, 2025
API Integration
NPM Package
@ai-sdk/perplexity
Environment Variables
PERPLEXITY_API_KEY
Documentation