Nemotron Lightning 3.5 30B A3B carries NVIDIA's full checkpoint name for the Lightning release of August 11, 2026, where A3B denotes the roughly 3 billion parameters that activate out of a 30 billion parameter Mixture-of-Experts. Interleaved Mamba-2 and MoE layers, with attention used sparingly, are what let it serve at small-model speed. NVIDIA publishes it under OpenMDW-1.1 with the training data and recipes alongside the weights, so it can be modified and deployed commercially without a fee, and it is distributed in BF16 and NVFP4 builds for different accelerator budgets. It is built for the high-frequency, tool-heavy steps of an agent loop, the kind of work where per-call latency matters more than raw capability.
Call Nemotron Lightning 3.5 30B A3B on Opper with the OpenAI SDK. Sign up without a credit card. Get started
Nemotron Lightning 3.5 30B A3B runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| Multi | No | $0.05 | $0.20 | $0.01 |
Nemotron Lightning 3.5 30B A3B runs on a single route through the Opper gateway today, so its availability is that provider's availability.
Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.
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 Nemotron Lightning 3.5 30B A3B 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. GLOBAL; SCCs; DPA available.
Call Nemotron Lightning 3.5 30B A3B through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.
Nemotron Lightning 3.5 30B A3B 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: "fireworks/nemotron-lightning-3p5-30b-a3b",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
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