Nemotron-Labs-Diffusion from NVIDIA

NVIDIA released the Nemotron-Labs-Diffusion 3B, 8B, and 14B dense model family with AR decoding, diffusion parallel decoding, and self-speculation; the 8B model reaches 850 tok/s on GB200 at concurrency 1, compared with 253 tok/s for AR and 360 tok/s for Eagle3.

Why it matters: HKR-H/K/R all pass: NVIDIA diffusion LLMs, concrete sizes/mechanisms, and an 850 tok/s GB200 claim. Single-source Reddit sourcing keeps it in the 78–84 band, not P1.