Nemotron 3.5 Lightning 30B A3B

Nemotron 3.5 Lightning 30B A3B is an open-weights member of NVIDIA's Nemotron family, released in two precision variants (BF16 and NVFP4) and made importable into OCI Generative AI on August 11, 2026. The model uses a hybrid architecture that blends Mamba-2 with a mixture-of-experts (MoE) layer and attention, totaling 30B parameters with 3B active per forward pass. This design positions it as a workhorse for long-running autonomous agents and sub-agent deployments, where sparse activation helps control compute costs while retaining the capacity needed for sustained, multi-step workflows.

The model supports text-to-text operation across English and several additional languages (Spanish, French, German, Italian, Japanese) along with coding languages, and it offers an extended context window of up to 1M tokens, which is well suited to agentic tasks that require large working memory. NVIDIA recommends a sampling setup with temperature 1.0 for generation. The combination of a hybrid Mamba-2/MoE/Attention backbone, multilingual support, and a very large context length makes the 30B A3B particularly fitting for complex agent pipelines that juggle long histories, tool interactions, and multilingual content within a single deployment.