# deepseek-r1-0528 — API, Pricing & Context Window

deepseek-r1-0528 on Vivgrid: DeepSeek's reasoning-focused R1 model with a 164K context window, available through one unified API.

`deepseek-r1-0528` is a reasoning-focused release from DeepSeek's R1 line, tuned to think through multi-step problems with explicit chains of reasoning. It offers a **164K-token context window** for long, complex tasks.

Vivgrid serves `deepseek-r1-0528` through its unified, OpenAI-compatible API, so you can mix DeepSeek's reasoning model into agent pipelines alongside other providers using one key.

## Specifications

|     |     |
| --- | --- |
| **Provider** | DeepSeek |
| **Model ID** | `deepseek-r1-0528` |
| **Best for** | General-purpose |
| **Context window** | 163,840 tokens |
| **Modalities** | Text |
| **Tool / function calling** | Yes |
| **Knowledge cutoff** | 2024-07 |
| **Acceleration** | 🌐 Global (Centralized) |

## Pricing

Pricing in USD per 1M tokens, matching the provider's rates.

| Input | Cached input | Output |
| --- | --- | --- |
| $1.35 | — | $5.40 |

## Quick start

Call `deepseek-r1-0528` through Vivgrid's unified, OpenAI-compatible endpoint. Get an API key from the [Vivgrid Console](https://console.vivgrid.com/).

```
curl https://api.vivgrid.com/v1/chat/completions \
  -H "Authorization: Bearer $VIVGRID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{\n    "model": "deepseek-r1-0528",\n    "messages": [\
      { "role": "user", "content": "Say hello in English, Chinese and Spanish." }\
    ],\n    "stream": true\n  }'\n```

## Ideal use cases

- Multi-step reasoning and problem solving
- Math, logic, and analytical tasks
- Workflows that benefit from explicit reasoning traces
- Cost-effective alternative to frontier reasoning models

## Related models

- [deepseek-v3.2](/content/docs/models/deepseek-v3.2) — general-purpose DeepSeek model
- [deepseek-v4-pro](/content/docs/models/deepseek-v4-pro/index.html) — flagship coding model
- [deepseek-v3.1](/content/docs/models/deepseek-v3.1) — earlier general-purpose model