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 in an inference pass. Fully open-source model.

ChatDeepSeek164k tokens$0.545 / $2.3436 · 1M

deepseek/deepseek-r1-0528

Context
164k tokens
Completion cap
32,768
Tools
Yes
JSON
Yes
Released
2025-05-28

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-r1-0528",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is 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 in an inference pass. Fully open-source model. R1 0528 runs on the Geek Hub API (OpenAI-compatible). Model id: deepseek/deepseek-r1-0528.
Is R1 0528 free?
No. Input is $0.545 per 1M tokens and output is $2.3436 per 1M tokens on Geek Hub (markup included).
What is the context length of R1 0528?
R1 0528 has a 164k tokens context window. It supports up to 32,768 completion tokens.
Does R1 0528 support tool calling and structured outputs?
R1 0528 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was R1 0528 released?
R1 0528 was released on 2025-05-28.

More models from DeepSeek