DeepSeek V4 Flash: CUDA 13.1 yields 100-150 faster t/s in prefill

A r/LocalLLaMA post reports DeepSeek V4 Flash runs 100-150 faster t/s in prefill with CUDA 13.1 over 13.3. CUDA 13.2 is said to be buggy; a vibed fork works with CUDA 13.3 as the alternative.