Perplexity

Perplexity: Sonar Reasoning Pro

perplexity/sonar-reasoning-pro

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

Get Started 
// 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>

# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://api.puter.com/puterai/openai/v1/",
    api_key="YOUR_PUTER_AUTH_TOKEN",
)

response = client.chat.completions.create(
    model="perplexity/sonar-reasoning-pro",
    messages=[
        {"role": "user", "content": "Explain quantum computing in simple terms"}
    ],
)

print(response.choices[0].message.content)

curl https://api.puter.com/puterai/openai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_PUTER_AUTH_TOKEN" \
  -d '{
    "model": "perplexity/sonar-reasoning-pro",
    "messages": [
      {"role": "user", "content": "Explain quantum computing in simple terms"}
    ]
  }'

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 128K

tokens

Max Output N/A

tokens

Input Cost $2

per million tokens

Output Cost $8

per million tokens

Release Date Mar 7, 2025

 

Model Playground

Try Sonar Reasoning Pro instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.

Chat perplexity/sonar-reasoning-pro
Perplexity
Chat with Sonar Reasoning Pro
Powered by Puter.js

Benchmarks

How Sonar Reasoning Pro performs on standard evaluations.

Artificial Analysis
Intelligence Index
24.6
Better than 59% of tracked models
BenchmarkScore
MATH-500 Competition math
95.7%
AIME 2024 Advanced math exam
79.0%

Scores sourced from Artificial Analysis.

Find other Perplexity models →

Chat

Sonar Pro Search

Sonar Pro Search is Perplexity's most advanced agentic search system, available exclusively via OpenRouter API, adding autonomous multi-step reasoning to Sonar Pro. Instead of single query+synthesis, it plans and executes entire research workflows using tools, making it ideal for deeper reasoning and analysis. This model powers Perplexity's Pro Search mode on their consumer platform.

 Chat

Sonar Deep Research

Sonar Deep Research is Perplexity's expert-level research model designed for exhaustive multi-step retrieval, synthesizing hundreds of sources into comprehensive reports. It autonomously searches, reads, and evaluates sources while refining its approach for in-depth analysis across domains like finance, technology, and health. Ideal for detailed market analyses, literature reviews, and projects requiring synthesis of multiple information sources.

 Chat

Sonar Pro

Sonar Pro is Perplexity's advanced search model with a 200K token context window, delivering 2x more citations and search results than standard Sonar for complex queries. It handles in-depth, multi-step queries with enhanced content understanding and supports longer, more nuanced follow-up conversations. Best for enterprise applications requiring deeper research and comprehensive source attribution.

Frequently Asked Questions

How do I use Sonar Reasoning Pro?

You can access Sonar Reasoning Pro by Perplexity through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.

Is Sonar Reasoning Pro free?

Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add Sonar Reasoning Pro to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.

What is the pricing for Sonar Reasoning Pro?
Sonar Reasoning Pro costs $2 per 1M input tokens and $8 per 1M output tokens.
Price per 1M tokens
Input$2
Output$8
Who created Sonar Reasoning Pro?

Sonar Reasoning Pro was created by Perplexity and released on Mar 7, 2025.

What is the context window of Sonar Reasoning Pro?

Sonar Reasoning Pro supports a context window of 128K tokens. For reference, that is roughly equivalent to 256 pages of text.

How does Sonar Reasoning Pro perform on benchmarks?

Sonar Reasoning Pro scores 24.6 on the Artificial Analysis Intelligence Index, outperforming 59% of tracked models.

Does it work with React / Vue / Vanilla JS / Node / etc.?

Yes — the 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 Sonar Reasoning Pro to your app without worrying about API keys or setup.

Read the Docs View Tutorials