DeepSeek V4.1 Flash 1017 released: MIT open weights and benchmark gains
Release roundup: Terminal-Bench 4.0 rises 31.2 to 42.3, HLE 36.8 to 42.6, programBench 20.3 to 29.1, DeepSWE hits 77.0 ahead of Opus 5 and GPT 5.6 Sol, API price unchanged, live on web and app.
DEEPSEEK JUST DROPPED A NEW OPEN MODEL😳 DeepSeek V4.1 Flash 1017 is live today Open weights. MIT license. free to download What changed -terminal Bench 4.0 went from 31.2 to 42.3 -HLE went from 36.8 to 42.6 -programBench went from 20.3 to 29.1 -deepSWE hit 77.0, ahead of Opus 5 and GPT 5.6 Sol on their own table -faster runs and shorter answers, so tasks cost less Same API price as before The DeepSeek web app and phone app already use it How to try it 1. Open http://chat.deepseek.com and just start chatting 2. On the API, call the model name deepseek-flash 3. Want it local? Grab the weights on Hugging Face Model card https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash-1017 Changelog https://api-docs.deepseek.com/updates
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