# Perplexity Sonar Deep Research

`sonar-deep-research` — **perplexity** · CHAT

> Perplexity Sonar Deep Research (sonar-deep-research) is a chat model from perplexity with a 128K-token context window; proprietary (API-only); capabilities reasoning; input text; output text.

| Field | Value |
| --- | --- |
| Vendor | perplexity |
| Kind | CHAT |
| Context window | 128,000 tokens |
| Max output tokens | 32,768 tokens |
| Indicative price (US list) | $2 in / $8 out per 1M tokens (indicative US list — verify with vendor) |
| Input modalities | text |
| Output modalities | text |
| Capabilities | reasoning |
| Weights | Proprietary (API-only) |
| Knowledge cutoff | 2025-01 |
| Release date | 2025-02-01 |
| Sources | models-dev |
| Last verified | 2026-10-30 |

*Part of the [Model Catalog](https://openviglet.github.io/model-catalog/) — [perplexity models](https://openviglet.github.io/model-catalog/models/perplexity/) · [Vendor JSON](https://openviglet.github.io/model-catalog/by-vendor/perplexity.json) · [HTML](https://openviglet.github.io/model-catalog/models/perplexity/sonar-deep-research.html)*