DeepSeek opens internal beta of V4.1 Flash with native multimodal support
jiqizhixin · x · 2026-09-08
DeepSeek has started an internal beta of an intermediate V4.1 Flash version, with key upgrades including a new model architecture, native multimodal support, and stronger capabilities at higher speed and lower cost.
To try it, keep your baseurl unchanged and set the model name to deepseek-v4.1-flash-expires-on-0910. Pricing matches deepseek-v4-flash, with a rate limit of 20 concurrent requests per account. The test model expires on Sept 10.
Related event: DeepSeek Quietly Tests V4.1 Flash Interim Build with Native Multimodality(10 posts)→
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