NVIDIA · Single modalityReleased 2026-10-14

nemotron-3.5-lightning-free

nvidia/nemotron-3.5-lightning-free id

Nemotron 3.5 Lightning is an open-weight reasoning and chat model for long-running agents, sub-agent work, chatbots, and RAG systems. The model has 30B parameters with 3B active per token, in a hybrid Mixture-of-Experts design that interleaves Mamba-2 and MoE layers with a few attention layers. It has a 1M token context window and supports tool calling and structured outputs. The provider may retain prompts and responses for model improvement.

ReasoningTool useStructured output
Type
Use nemotron-3.5-lightning-free
# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$
$ const { text } = await generateText({
$ model: 'nvidia/nemotron-3.5-lightning-free',
$ baseURL: 'https://synapse.garden/api/v1',
$ apiKey: process.env.MG_KEY,
$ prompt: 'Why is the sky blue?',
$ })
1M
CONTEXT WINDOW
65K
MAX OUTPUT
—
INPUT · PER M
—
OUTPUT · PER M
PRICING

List prices, every modality.

RatePer million tokens · USD
Input—
Output—
Honest list pricesHow we calculate prices
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FAQ · NEMOTRON-3.5-LIGHTNING-FREE

Frequently asked

01 / 04

How do I call nemotron-3.5-lightning-free from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘nvidia/nemotron-3.5-lightning-free’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does nemotron-3.5-lightning-free cost?

Pricing varies by usage type — see the table above for the current rates.

03 / 04

What's the context window for nemotron-3.5-lightning-free?

nemotron-3.5-lightning-free supports a context window of 1M tokens, with a maximum output of 65K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try nemotron-3.5-lightning-free in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.