LLM Releases

Model family timeline

Last updated Aug 11, 2026

Nemotron model releases

A source-backed timeline for the Nemotron model family, collecting release dates, labs, access details, context windows, and major lifecycle changes.

3
Models
1
Labs
3
Open
3
Recent

3 models

Nemotron 3.5 Lightning

Available
NVIDIAOpen weights

NVIDIA's efficient open Mixture-of-Experts model, released Aug 11 2026 for long-running agents. A hybrid Mamba-2 + MoE + Attention design with ~31.6B total and ~3.6B active parameters and a 1M-token context, shipped alongside the NeMo Switchyard model router. NVIDIA reports performance comparable to gpt-oss-120b at roughly a quarter of the total parameters, up to 4x the output speed of similar-sized models, and 10,000 tasks completed ~30% faster than Qwen3.6-35B at similar accuracy. Vendor-reported BF16 figures: SWE-bench Verified 51.56, GPQA Diamond 75.44, MMLU Pro 81.94, PinchBench 85.37 — self-reported and unverified by an independent harness at launch. Ships under the permissive OpenMDW-1.1 license with weights, training data, and recipes released, and is available on Hugging Face, ModelScope, OpenRouter, and build.nvidia.com as an NVIDIA NIM microservice.

Hybrid31.6B1M ctxAug 11, 2026

Llama-3.3-Nemotron-Super-49B

Available
NVIDIAOpen weights

Open Llama Nemotron reasoning model from NVIDIA's 2025 Nemotron family.

Dense49B128K ctxApr 2, 2025

Llama-3.1-Nemotron-70B

Available
NVIDIAOpen weights

NVIDIA-tuned Llama 3.1 70B instruction model optimized with Nemotron reward and alignment recipes.

Dense70B128K ctxOct 15, 2024