Perplexity Sonar Deep Research
Summary
Perplexity Sonar Deep Research is a proprietary language model from Perplexity, released on 1 Feb 2025. It accepts text and generates text, with a 128K-token context window and up to 33K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $2 per million input tokens and $8 per million output tokens (Perplexity API), across 2 providers we track.
Sonar search model for current answers, retrieval, and citation-backed chat
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Perplexity |
|---|---|
| Release date | 1 Feb 2025 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 128K (128,000 tokens) [models.dev] |
| Max output | 33K tokens [models.dev] |
| Knowledge cutoff | Jan 2025 [models.dev] |
| Input | Text [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | Yes [models.dev] |
| Tool calling | No [models.dev] |
Perplexity Sonar Deep Research API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| Perplexity API sonar-deep-research | $2 | $8 | – | 128K | models.dev, 4 Oct 2026 |
| OpenRouter perplexity/sonar-deep-research | $2 | $8 | – | 128K | OpenRouter, 4 Oct 2026 |
Frequently asked questions
What is the context window of Perplexity Sonar Deep Research?
Perplexity Sonar Deep Research has a context window of 128,000 tokens (128K) and can generate up to 32,768 tokens in a single response, according to models.dev.
How much does the Perplexity Sonar Deep Research API cost?
Through Perplexity API, Perplexity Sonar Deep Research costs $2 per million input tokens and $8 per million output tokens. Prices last verified 4 Oct 2026.
Is Perplexity Sonar Deep Research open source?
No. Perplexity Sonar Deep Research is a proprietary model; Perplexity has not released its weights. It is available through APIs including Perplexity API, OpenRouter.
When was Perplexity Sonar Deep Research released?
Perplexity released Perplexity Sonar Deep Research on 1 Feb 2025, according to models.dev.
Which providers offer Perplexity Sonar Deep Research?
We track Perplexity Sonar Deep Research on 2 providers: Perplexity API, OpenRouter.
Change history
No changes detected since we started tracking this model. We re-check every source daily.