NVIDIA: Nemotron 3.5 Content Safety (free)

nvidia/nemotron-3.5-content-safety:free

Free token ratesVision inputReasoning
View on OpenRouter ↗

Price Published

Input
$0
per million tokens
Output
$0
per million tokens

A $0 token rate isn't unlimited. OpenRouter applies free-tier rate and daily limits, and needs an account and API key.

Other listings of this model

  • Paid version nvidia/nemotron-3.5-content-safety · $0.20 / $0.20

Specifications Published

Context window
128,000 tokens
Max output
8,192 tokens
Tool calling
Not listed
Vision input
Supported
Reasoning
Supported
Knowledge cutoff
Not reported
Listed since
Jun 4, 2026

Measured by the Club Signed cheapoS reports

Not yet observed No signed request reports for this exact route yet. Missing reports aren't a failure or a zero.

How we measure · Reports come from cheapoS members who share model details.

Try it

  1. Get an OpenRouter API key. Create one here (free models need an account, not credits). Other free tiers are compared on Providers.
  2. Add it to cheapoS. Open Models → Open OmniRoute, add OpenRouter with your key, then refresh models. Get cheapoS
  3. Pick this model. Use the ID nvidia/nemotron-3.5-content-safety:free, and start with a small task you can check.

About this model OpenRouter description

NVIDIA Nemotron 3.5 Content Safety is a compact 4B-parameter multimodal guardrail model from NVIDIA, fine-tuned from Google Gemma-3-4B. It moderates both inputs to and responses from LLMs and VLMs, accepting...

Other free models

Catalog data from the OpenRouter model catalog, retrieved Sep 29, 2026, 12:37 PM UTC. A listing isn't a live availability check.