AI Disruption

AI Disruption

R1 Turns One: DeepSeek Model 1 Emerges Quietly

DeepSeek Model1 spotted on GitHub: V4 in disguise? 512-dim MLA, Blackwell boost, sparse MLA hint

Meng Li's avatar
Meng Li
Jan 21, 2026
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On January 20, 2025, DeepSeek officially released the DeepSeek-R1 model, ushering in a new era of open-source LLMs. In Hugging Face’s recently published blog post “One Year Anniversary of the ‘DeepSeek Moment’,” DeepSeek-R1 was also noted as the most-liked model on the platform.

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Now, just over a year later, DeepSeek’s new model has quietly appeared on GitHub.

In recent days, DeepSeek has pushed numerous updates to its FlashMLA code repository, and among these updates, a model named “Model1” has caught the attention of many users.

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As shown in the screenshot below, this currently mysterious Model1 not only appears in code and comments but even has files that stand alongside DeepSeek-V3.2.

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