DeepSeek AI assistant surpasses ChatGPT on US App Store

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As of Jan. 27, DeepSeek AI has surpassed ChatGPT, reaching the top spot on the Apple App Store’s free apps list. According to the Chinese media outlet *iThome*, DeepSeek has fully open-sourced its DeepSeek-R1 training source. In tandem with releasing and open-sourcing R1, the company has adjusted its licensing structure: The model is now open-source under the MIT License. Previously, DeepSeek introduced a custom license to the open-source community based on industry practices, but it was found that non-standard licenses could increase developers’ understanding costs. As a result, the open-source repository, including model weights, will now adopt the standardized and permissive MIT License, with no restrictions on commercial use and no need for special applications.