Sonar Reasoning (Free)

Chat CompletionsDeprecated Feb 14, 2026

sonar-reasoning:free

Perplexity|Created May 28, 2025|128k context

Chat Completions

Deprecated Feb 14, 2026

Sonar Reasoning is a Perplexity model based on DeepSeek R1, designed for long chain-of-thought reasoning with built-in web search. It is uncensored, hosted in US datacenters, and allows developers to leverage extended reasoning for complex queries, making it suitable for research and knowledge-intensive applications.

Overview Specifications Activity Performance Uptime Examples

Throughput

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Time-To-First-Token (TTFT)

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