Sonar is Perplexity’s lightweight, affordable, and fast question-answering model, now featuring citations and customizable sources. It is designed for companies seeking to integrate rapid, citation-enabled Q&A features optimized for speed and simplicity.
Retired on Nov 6, 2026: requests to this model ID now return an error. These models are live and work with the same API key.
Sonar is Perplexity’s lightweight, affordable, and fast question-answering model, now featuring citations and customizable sources. It is designed for companies seeking to integrate rapid, citation-enabled Q&A features optimized for speed and simplicity.
No. Sonar (Free) was retired on NagaAI on Nov 6, 2026, and requests to it now return an error. Live models you can use instead with the same API key: Sonar Reasoning Pro, Sonar Pro and LFM3-1.7B.
It takes text as input and returns text.
