Using Nemotron 3.5 Lightning on OpenRouter

Implementation guide · Nemotron 3.5 · NVIDIA AI

ServerlessOpen Weights

OpenRouter exposes Nemotron 3.5 Lightning through model ID nvidia/nemotron-3.5-lightning. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-10-05. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call nvidia/nemotron-3.5-lightning — see the documentation for request format.
  3. 3
    You'll be billed $0.06/1M input, $0.16/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$0.06
Output tokens$0.16

Capabilities

ReasoningJSON / Tool use

About Nemotron 3.5 Lightning

NVIDIA Nemotron 3.5 Lightning (HF nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B) is an open-weight hybrid Mamba-Transformer mixture-of-experts text model with 30B total and 3B active parameters (NemotronHForCausalLM), released 11 August 2026. NVIDIA lists context up to 1M tokens (256K used for single-H100 deployment). Weights ship in BF16, NVFP4 and speculative-decoding (DSpark/DFlash) variants plus a base checkpoint under OpenMDW 1.1. It is offered on build.nvidia.com and OpenRouter (free tier).

Full model details →

Model Specs

Released2026-08-11
Parameters30B (3B activated)
Context1M
ArchitectureMoE + SSM Hybrid

Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA