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

Posted by dares2573 19 hours ago

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.

Comments

Comment by dyl000 14 hours ago

lower cost lol how -- effective price is like 4 cents / m in on openrouter with cache hits.

Comment by damanamathos 11 hours ago

Wow, it's fast.

Comment by MoneyLovesSpeed 1 hour ago

speed matters way more than ppl think tbh

id take a slightly worse model thats 2x faster for most product use cases

Comment by GilbertWong 18 hours ago

Where can I test it ?

Comment by vinya4486 17 hours ago

Get an account at platform.deepseek.com and configure your agent with the model name deepseek-v4.1-flash-expires-on-0910, you have to manually configure the model, it does not automatically show up.