Sonar Reasoning Pro
VerifiedMultimodal reasoning model optimized for complex text and image analysis.
About Sonar Reasoning Pro
Sonar Reasoning Pro uses a multimodal design that integrates text and visual inputs. Its 128000-token context window supports processing of extended documents alongside images. The model remains closed-weight under Perplexity's control.
Key strengths include coherent reasoning across combined modalities and sustained performance over long contexts. It handles detailed analysis without requiring open-weight access. This enables reliable outputs in information-dense scenarios.
Common applications involve research tasks that merge textual and visual data. Professionals use it for synthesis of multimodal sources and structured problem-solving. It suits workflows needing extended context retention and cross-modal inference.
Capabilities
How Sonar Reasoning Pro compares
Sonar Reasoning Pro (striped bar) vs other multimodal on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · Sonar Reasoning Pro ranks #89 of 139
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long Academic Research Analysis
Ideal for reviewing extensive papers or reports that span many pages, leveraging long-context reasoning to connect ideas across sections while incorporating any embedded diagrams or charts.
Image-Text Integration Tasks
Excels at queries involving both visual inputs and detailed textual instructions, such as interpreting infographics alongside complex follow-up questions for step-by-step breakdowns.
Multi-Step Technical Problem Solving
Well-suited for intricate coding or engineering challenges that require maintaining context over large inputs and delivering structured, sequential solutions.
Strengths & limitations
Strengths
- +Effective handling of extended contexts
- +Seamless text and image processing
- +Advanced reasoning for detailed tasks
Limitations
- –Limited to text and image inputs
- –Performance depends on prompt quality
- –Potential latency with very large contexts
Cost calculator
Estimate what Sonar Reasoning Pro would cost for your usage.
Based on Sonar Reasoning Pro's $2.00/1M input · $8.00/1M output. Estimate only — actual cost varies by provider and caching.
Quick start
OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. Only the model slug changes between models.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const completion = await client.chat.completions.create({
model: "perplexity/sonar-reasoning-pro",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: perplexity/sonar-reasoning-pro
Editor's verdict
Sonar Reasoning Pro is Perplexity's proprietary multimodal with a 128K-token context window.
At $8.00 per 1M output tokens, it is premium-priced for its class.
It is available through Perplexity's API and aggregators like OpenRouter.
Best suited to effective handling of extended contexts and seamless text and image processing.
Frequently asked questions
The model supports a context window of 128000 tokens.
User reviews
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Other Sonar models
Sibling versions in the Sonar family from Perplexity.
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