Using Nemotron 3.5 Lightning on Vercel AI Gateway

Implementation guide · Nemotron 3.5 · NVIDIA AI

Serverless
Open Weights

Vercel AI Gateway 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 2026-10-21. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at Vercel AI Gateway and generate an API key.
  2. 2
    Use the Vercel AI Gateway SDK or REST API to call nvidia/nemotron-3.5-lightning — see the documentation for request format.
  3. 3
    You'll be billed $0.05/1M input, $0.20/1M output tokens. See full pricing.

Code Examples

Install
pip install openai
API key
AI_GATEWAY_API_KEY
Model ID
nvidia/nemotron-3.5-lightning

creator/model-name e.g. kwaipilot/kat-coder-pro-v2

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],
    base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
    model="nvidia/nemotron-3.5-lightning",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on Vercel AI Gateway

TypePrice (per 1M)
Input tokens$0.05
Output tokens$0.20

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).

Model Specs

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

Provider

Vercel AI Gateway

Vercel