NVIDIA just dropped a bombshell — an open model that processes video, audio, images, and text all at once, with chain-of-thought reasoning built in.
On April 28, 2026, NVIDIA released the Nemotron 3 Nano Omni, a 31-billion parameter multimodal AI model that's turning heads in the open-source AI community. And here's the kicker — despite its 31B total size, it only activates ~3 billion parameters per token thanks to a clever MoE (Mixture of Experts) architecture.