Perplexity: Sonar Reasoning Pro API

Access Perplexity: Sonar Reasoning Pro from Perplexity using Puter.js AI API.

Get Started

Model Card

Sonar Reasoning Pro is a premier reasoning model powered by DeepSeek R1 with Chain of Thought (CoT), designed for complex multi-step analysis and logical problem-solving. It excels at tasks requiring step-by-step thinking, strict instruction adherence, and information synthesis across sources with built-in web search. Ranked among the top models in Search Arena evaluations, statistically tied with Gemini-2.5-Pro-Grounding.

Context Window N/A

tokens

Max Output N/A

tokens

Input Cost $2

per million tokens

Output Cost $8

per million tokens

Release Date Feb 18, 2025

 

API Usage Example

Add Perplexity: Sonar Reasoning Pro to your app with just a few lines of code.
No API keys, no backend, no configuration required.

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

puter.ai.chat("Explain quantum computing in simple terms", {
    model: "perplexity/sonar-reasoning-pro"
}).then(response => {
    document.body.innerHTML = response.message.content;
});

<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.chat("Explain quantum computing in simple terms", {
            model: "perplexity/sonar-reasoning-pro"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

More Models from Perplexity

Chat

Perplexity: Sonar Pro Search

Sonar Pro Search is Perplexity's most advanced agentic search system, available exclusively via Open...

 Chat

Perplexity: Sonar

Sonar is Perplexity's lightweight, cost-effective search model built on Llama 3.3 70B, optimized for...

 Chat

Perplexity: Sonar Deep Research

Sonar Deep Research is Perplexity's expert-level research model designed for exhaustive multi-step r...

View all Perplexity models →

Frequently Asked Questions

What is this Perplexity: Sonar Reasoning Pro API about?

The Perplexity: Sonar Reasoning Pro API gives you access to Perplexity's chat model through Puter.js. With just a few lines of JavaScript, you can integrate Perplexity: Sonar Reasoning Pro into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Perplexity: Sonar Reasoning Pro?

Perplexity: Sonar Reasoning Pro was created by Perplexity and released on Feb 18, 2025.

How much does it cost?
The Perplexity: Sonar Reasoning Pro API is available through the User-Pays Model. As a developer, you can add the Perplexity: Sonar Reasoning Pro API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$2
Output$8
How do I access the Perplexity: Sonar Reasoning Pro API?

You can access the Perplexity: Sonar Reasoning Pro API with just a few lines of JavaScript — no API keys, no backend, and no configuration required. Include the Puter.js library in your project and start making calls right away. For more details, check out our documentation.

Does the Perplexity: Sonar Reasoning Pro API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Perplexity: Sonar Reasoning Pro API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.

Get started with Puter.js

Add Perplexity: Sonar Reasoning Pro to your app without worrying about API keys or setup.

Read the Docs View Tutorials