Nemotron 3.5 Lightning 30B A3B
Nemotron 3.5 Lightning 30B-A3B is a 30B-parameter, 3B-active hybrid Mamba-2/MoE/Attention reasoning model designed for faster inference and efficient agentic workloads.
Nemotron 3.5 Lightning 30B A3B
Nemotron 3.5 Lightning 30B-A3B is a 30B-parameter, 3B-active hybrid Mamba-2/MoE/Attention reasoning model designed for faster inference and efficient agentic workloads.
- • FP16 Weights = 30.0B × 2B = 60.00 GB
- • INT4 Weights = 30.0B × 0.55B = 16.50 GB
- • KV Cache (1000000 ctx, FP16) ≈ 190.73 GB
- • Activation Buffer = ~20% overhead
Hardware & Execution ParametersReasoning
Genealogical Graph & Evolutionary Provenance
Tracing foundational base architecture ancestry, architectural successors, scale siblings, and reasoning distillation derivatives.
Architecture Engineering & Capability Deep-Dive
An objective architectural evaluation of Nemotron 3.5 Lightning 30B A3B by NVIDIA, analyzing underlying compute dynamics, memory constraints, and deployment economics.
Topology & Attention Mechanics
A robust autoregressive transformer utilizing standard attention patterns for predictable and coherent token generation.
Evaluation Profile & Reasoning
Exhibits frontier-tier behavior in reasoning and coding.
LLM Hardware Sizing & Serving
For open deployments via vLLM/SGLang, quantization (INT4/AWQ) is heavily recommended to fit dense memory constraints, or multi-GPU pipeline parallelism for full FP16.
Inference Economics & Workflows
Well-suited for enterprise pipelines where capability is balanced against per-million token costs.
Architectural Strengths vs. Considerations
An objective balance sheet analyzing the operational advantages and production constraints of deploying Nemotron 3.5 Lightning 30B A3B.
Key Architectural Strengths
- Massive 1,000,000-token context allows full-repository and book-length ingestion.
- Demonstrated MMLU Pro evaluation score of 81.94% in verified benchmarks.
Operational Considerations
- 128k+ token prefill stages become heavily compute-bound and balloon KV cache without PagedAttention chunking.
Inference Runtimes & Hardware Sizing
Deployment targets, inference engines, and memory requirements for Nemotron 3.5 Lightning 30B A3B.
python3 -m vllm.entrypoints.openai.api_server --model Nemotron 3.5 Lightning 30B A3B --tensor-parallel-size 1 --gpu-memory-utilization 0.95 --max-model-len 4096 --enable-chunked-prefillollama run nemotron 3.5 lightning 30b a3bpython3 -m sglang.launch_server --model-path Nemotron 3.5 Lightning 30B A3B --tp 1 --trust-remote-codetext-generation-launcher --model-id Nemotron 3.5 Lightning 30B A3B --num-shard 1 --max-batch-prefill-tokens 32000High-throughput PagedAttention server
One-click CLI & local desktop serving
Fast multi-turn structured decoding
Text Generation Inference
GGUF CPU/Apple Silicon execution
~72.0 GB VRAM required
~36.0 GB VRAM (Hopper speedup)
~19.8 GB VRAM
CPU RAM / Apple Silicon optimized
LLM Benchmark Database & Performance Metrics
7 TestedStandardized evaluation results across reasoning, agentic coding, computer use, and alignment.
API & Deployment Pricing
Open-weights model available for local and private cloud deployment. Compute costs depend on the target GPU hardware instance.
| Deployment Tier | Pricing Structure |
|---|---|
| Open Checkpoint Weights | $0.00 (Free Download) |
| Inference Token Consumption | $0.00 / Token |
Comparable Foundation Architectures
Alternative models in the Reasoning class with similar capabilities, context windows, or deployment profiles.
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ.get("NVIDIA_KEY", "EMPTY"),
base_url="http://localhost:8000/v1"
)
response = client.chat.completions.create(
model="nvidia-nemotron-3.5-lightning",
messages=[{"role": "user", "content": "Explain quantum superposition in 2 sentences."}]
)
print(response.choices[0].message.content)Frequently Asked Questions about Nemotron 3.5 Lightning 30B A3B
Essential facts, architectural specs, hardware constraints, and pricing answers for Nemotron 3.5 Lightning 30B A3B.
To run Nemotron 3.5 Lightning 30B A3B (30B) locally, you generally need Depends on quantization. We recommend using quantized GGUF/AWQ formats with Ollama or vLLM to optimize memory footprint.
All technical specifications, parameter distributions, context architectures, and benchmark evaluations for Nemotron 3.5 Lightning 30B A3B are audited against primary source release documentation, research whitepapers, and verified vendor API endpoints.