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) – Uptime and Availability | OpenRouter