Discover Perplexity's Sonar Reasoning Model

Unleash complex reasoning with integrated web search.

Input: text Output: text Context: 127,000 tokens Release: 2025-01-29

Perplexity's Sonar Reasoning, released on January 29, 2025, is a text-to-text model designed for developers who need to implement long chains of thought processes with integrated web search capabilities. Built on the DeepSeek R1 foundation, Sonar Reasoning offers a substantial context window of 127,000 tokens, making it suitable for complex reasoning tasks. The model operates with text as both input and output modalities, providing a versatile tool for a range of applications. Hosted in US datacenters, it supports various parameters like frequency penalty, max tokens, and temperature adjustments, allowing for fine-tuning to meet specific needs. Whether you are looking to enhance reasoning capabilities or incorporate web search into your applications, Sonar Reasoning provides a robust solution.

Use Cases

Here are a few ways teams apply Perplexity: Sonar Reasoning in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Enhance reasoning in applications

Integrate web search seamlessly

Develop long chain thought processes

Customize output with parameter tuning

Key Features

A quick look at the capabilities that make this model useful in real projects.

Based on DeepSeek R1 framework

127,000 token context window

Text-to-text modality

Supports web search integration

Hosted in US datacenters

Customizable parameters

Specs

Overview

Vendor
perplexity

Model ID
perplexity/sonar-reasoning

Release
2025-01-29

Modalities & context

Input
text

Output
text

Context
127,000 tokens

Parameters & defaults

Supported parameters: frequency_penalty, include_reasoning, max_tokens, presence_penalty, reasoning, temperature, top_k, top_p, web_search_options

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: Perplexity: Sonar Reasoning

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:

Write 150 words on how AI might positively upend work, leisure and creativity

# How AI Might Positively Upend Work, Leisure and Creativity AI is poised to transform our lives in profoundly positive ways across work, leisure, and creativity. In the workplace, rather than replacing humans, AI handles repetitive tasks, freeing workers to focus on creative, strategic, and interpersonal activities. Companies adopting AI see growth in revenue, profits, and even employment as productivity increases. For leisure, AI moves us beyond passive entertainment to dynamic, personalized experiences—curating activities, enhancing hobbies with educational overlays, and co-creating art based on individual preferences. Regarding creativity, AI tools boost human creative productivity by 25% by promoting divergent thinking and challenging expertise bias. Platforms like Midjourney and ChatGPT democratize creative processes, making professional-quality design, writing, and music composition accessible to all. Rather than replacing human ingenuity, AI serves as a collaborative partner that amplifies our capabilities, enabling unprecedented levels of innovation while making creative expression more inclusive and accessible across all aspects of life.

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up.end

/ˌəpˈend/

verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.

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