# DeepSeek v4.1 Flash is now available for internal beta testing

> Source: <https://news.ycombinator.com/item?id=49607094>
> Published: 2026-09-08 08:04:38+00:00

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|  |  | [DeepSeek v4.1 Flash is now available for internal beta testing](item?id=49607094) | 
|  |  | 3 points by [dares2573](user?id=dares2573)[26 minutes ago](item?id=49607094) \|[hide](hide?id=49607094&goto=item%3Fid%3D49607094) \|[past](https://hn.algolia.com/?query=DeepSeek%20v4.1%20Flash%20is%20now%20available%20for%20internal%20beta%20testing&type=story&dateRange=all&sort=byDate&storyText=false&prefix&page=0) \|[favorite](fave?id=49607094&auth=1fb12860137f5c25d779e25b901d5cf3200c678e) \|[discuss](item?id=49607094) | 
|  |  | DeepSeek V4.1 Flash is now available for internal beta testing. It uses a new model architecture, with native multimodal support, stronger capabilities, faster speed, and lower cost. Keep the `base_url` unchanged and set the model name to `deepseek-v4.1-flash-expires-on-0910` to use it. Pricing is currently the same as `deepseek-v4-flash`, with an account-level rate limit of 20 concurrent requests. |