# DeepSeek: R1 0528

Provider: deepseek  
Category: llm  
Model ID: `deepseek/deepseek-r1-0528`

May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active...

## Specs

- Context length: 163840 tokens
- Max output: unknown tokens
- Modalities: text
- Released: 2025-05-28

## Pricing

- Input: $0.50 per million tokens
- Output: $2.15 per million tokens

## Providers

- **deepseek** — ctx 163840, input $0.50/M, output $2.15/M

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Last verified: 2026-04-23T23:46:29.618Z  
Canonical URL: https://switchy.build/models/deepseek-r1-0528