# Nemotron: what I've logged

> Nemotron comes up in 5 posts of my AI log, from December 2025 to August 2026, and each item below links to the primary source. The sources come from NVIDIA, filed under frontier, open weights and science.

## Items

1. **Nemotron 3.5 Lightning** (NVIDIA, 10 Aug 2026): A 30B hybrid Mamba-Transformer with only 3B active parameters and up to 1M-token context, open weights in several precisions. [Primary source](https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16) · [Post](https://heyaliasif.com/ai/2026-08-10-week-in-ai#item-5)
2. **Nemotron 3 Ultra** (NVIDIA, 1 Jun 2026): A 550B mixture-of-experts with 55B active, a 1M-token context and NVFP4 pretraining, released June 4 with NVIDIA claiming 5.9 times the throughput of GLM-5.1. [Primary source](https://research.nvidia.com/labs/nemotron/Nemotron-3-Ultra/) · [Post](https://heyaliasif.com/ai/2026-06-01-week-in-ai#item-1)
3. **Nemotron 3 Nano Omni** (NVIDIA, 27 Apr 2026): An open 30B-A3B model that takes video, audio, image and text and acts as the perception layer for agent systems. [Primary source](https://blogs.nvidia.com/blog/nemotron-3-nano-omni-multimodal-ai-agents/) · [Post](https://heyaliasif.com/ai/2026-04-27-week-in-ai#item-4)
4. **Nemotron 3 Super** (NVIDIA, 9 Mar 2026): A 120B mixture-of-experts model with 12B active parameters and a 1M-token context, released with weights and training recipe. [Primary source](https://nvidianews.nvidia.com/news/nvidia-announces-nemotron-3-super) · [Post](https://heyaliasif.com/ai/2026-03-09-week-in-ai#item-1)
5. **NVIDIA Nemotron 3 Nano 30B-A3B** (NVIDIA, 15 Dec 2025): An open mixture-of-experts model with only about 3B active parameters, aimed at cheap multi-agent workloads. [Primary source](https://huggingface.co/nvidia/NVIDIA-Nemotron-3-Nano-30B-A3B-BF16) · [Post](https://heyaliasif.com/ai/2025-12-15-week-in-ai#item-3)

## Posts

- 2026-08-10 [Grok 4.6, Gemini 3.7 Flash and GLM-5.3 arrive in four days](https://heyaliasif.com/ai/2026-08-10-week-in-ai)
- 2026-06-01 [Nemotron 3 Ultra ships, MiniMax M3, Gemma 4 12B, Glasswing grows](https://heyaliasif.com/ai/2026-06-01-week-in-ai)
- 2026-04-27 [Grok 4.3, Mistral Medium 3.5 weights, and the Qwen3.6 family](https://heyaliasif.com/ai/2026-04-27-week-in-ai)
- 2026-03-09 [Nemotron 3 Super opens up and Gemini Embedding 2 goes multimodal](https://heyaliasif.com/ai/2026-03-09-week-in-ai)
- 2025-12-15 [Gemini 3 Flash, GPT-5.2-Codex and Nvidia's open Nemotron 3](https://heyaliasif.com/ai/2025-12-15-week-in-ai)

Canonical: https://heyaliasif.com/ai/topics/nemotron