Using Sonar Reasoning Pro on OpenRouter

Quick Start

1. 1
   Create an account at OpenRouter and generate an API key.
2. 2
   Use the OpenRouter SDK or REST API to call perplexity/sonar-reasoning-pro — see the documentation for request format.
3. 3
   You'll be billed $2.00/1M input, $8.00/1M output tokens. See full pricing.

Code Examples

About OpenRouter

OpenRouter provides a unified interface for Large Language Models with better pricing, improved uptime, and no subscription requirements. Route across providers for cost optimization and reliability.

OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.

Pricing on OpenRouter

Capabilities

About Sonar Reasoning Pro

Perplexity's Chain-of-Thought reasoning search model. Replaced sonar-reasoning (deprecated December 2025). Request fees: $6-$14/1K requests (Low/Medium/High).