DeepSeek Flash 4.1 spotted testing via API with new architecture, release imminent

kimmonismus · x · 2026-09-08

A leak claims DeepSeek Flash 4.1 is already being tested via API and rolling out, with the official model ID deepseek-v4.1-flash-expires-on-0910. The model reportedly uses a new architecture and is noticeably faster, with an official release post expected soon. Not yet officially confirmed.

Related event: DeepSeek V4.1 Flash Intermediate Build Opens Limited Internal Test with New Architecture and Native Multimodality(11 posts)→

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