Nemotron 3.5 Lightning is NVIDIA's agent-focused open model, released on August 11, 2026 with 30 billion total parameters and roughly 3 billion active per token. The architecture interleaves Mamba-2 and Mixture-of-Experts layers with a small number of attention layers, which keeps throughput high and memory demand modest relative to the nominal parameter count. NVIDIA reports 86% on PinchBench and publishes the weights, training data and recipes under the permissive OpenMDW-1.1 license, which allows commercial use and modification with no licensing fee. The model targets high-frequency agent loops and tool calling, and NVIDIA lists deployment targets running from Jetson and the GeForce RTX 5090 through DGX Spark and DGX Station up to data centre and cloud hardware.
Call NVIDIA-Nemotron-3.5-Lightning on Opper with the OpenAI SDK. Sign up without a credit card. Get started
NVIDIA-Nemotron-3.5-Lightning runs on 2 different routes through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.
NVIDIA-Nemotron-3.5-Lightning runs on 2 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.
Each route hosting NVIDIA-Nemotron-3.5-Lightning has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; unknown; DPA available.
Content is retained: provider logging. No training on customer data. GLOBAL; SCCs; DPA available.
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Call NVIDIA-Nemotron-3.5-Lightning through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.
NVIDIA-Nemotron-3.5-Lightning is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.OPPER_API_KEY,baseURL: "https://api.opper.ai/v3/compat",});const completion = await client.chat.completions.create({model: "deepinfra/nvidia/NVIDIA-Nemotron-3.5-Lightning",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
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