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DeepSeek: R1 0528 (free)

deepseek/deepseek-r1-0528:free

Created May 28, 2025163,840 context

$0/M input tokens$0/M output tokens

May 28th update to the original DeepSeek R1 Performance on par with 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.

DeepSeek: R1 0528 (free) – Recent Activity and Usage Stats | OpenRouter

Recent activity on R1 0528 (free)

Total usage per day on OpenRouter

Prompt

1.37B

Reasoning

119M

Completion

48.4M

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.