# DeepSeek: R1 0528

`deepseek/deepseek-r1-0528` — **openrouter** · CHAT

> DeepSeek: R1 0528 (deepseek/deepseek-r1-0528) is a chat model from openrouter with a 65.3K-token context window; open-weight; capabilities tools, reasoning; input text; output text.

| Field | Value |
| --- | --- |
| Vendor | openrouter |
| Kind | CHAT |
| Context window | 65,336 tokens |
| Max output tokens | 8,192 tokens |
| Indicative price (US list) | $0.5 in / $2.15 out per 1M tokens (indicative US list — verify with vendor) |
| Input modalities | text |
| Output modalities | text |
| Capabilities | tools, reasoning |
| Weights | Open-weight |
| Knowledge cutoff | 2025-03-31 |
| Release date | 2025-05-28 |
| Sources | committed, models-dev, openrouter-api |
| Last verified | 2026-11-05 |

*Part of the [Model Catalog](https://models.viglet.org/) — [openrouter models](https://models.viglet.org/models/openrouter/) · [Vendor JSON](https://models.viglet.org/by-vendor/openrouter.json) · [HTML](https://models.viglet.org/models/openrouter/deepseek-deepseek-r1-0528.html)*