Prime Intellect stores MLA KV cache in NVFP4 for more cached tokens

Prime Intellect compresses the MLA latent KV cache to NVFP4, reducing each row from 576 to 352 bytes. This fits about 50% more cached tokens per decoder compared with FP8. Its native sparse-MLA kernel unpacks the format on-chip, and the company is contributing that kernel to FlashInfer as an experimental operation.