Answers from the documentation; checking which model is on duty
Hi - I answer from the OpenSmartRoute documentation: routing, the API, plans and quotas, self-hosting. Ask away, or open a support ticket if you need a person.
Grounded in the docs - follow a source before acting on it.
Nemotron 3.5 Content Safety - Model - OpenSmartRoute
Modelv1.0.0
Nemotron 3.5 Content Safety
NVIDIA Nemotron 3.5 Content Safety is a compact 4B-parameter multimodal guardrail model from NVIDIA, fine-tuned from Google Gemma-3-4B.
Reference model card from the OpenRouter listing - model nvidia/nemotron-3.5-content-safety. Prices are per million tokens as listed; ratings and installs below are from this marketplace.
Nemotron 3.5 Content Safety
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...
Facts
Vendor
NVIDIA
Context window
131,072 tokens
Max output
117,964 tokens
Input price
$0.20 / 1M tokens
Output price
$0.20 / 1M tokens
Input
text, image
Output
text
Tool calling
no
Structured outputs
no
Reasoning
yes
Open weights
nvidia/Nemotron-3.5-Content-Safety
Endpoint: https://openrouter.ai/api/v1 (OpenAI-compatible), model nvidia/nemotron-3.5-content-safety
Use it
Copy one of these into your project. Installing also returns the manifest and these snippets.
# after Install: the listing is in your workspace's routing pool - nothing else to configurecurl-s-X POST https://osr-api.kindrock-caaab1a2.centralindia.azurecontainerapps.io/api/v1/route -H 'Authorization: Bearer $OSR_API_KEY' -H 'Content-Type: application/json' -d '{"text": "...", "plan": true}'# or pin it on the OpenAI-compatible endpoint: {"model": "model-nvidia-nemotron-3-5-content-safety", ...}
Installed into a catalogue, chosen by a router
Install Nemotron 3.5 Content Safety and it becomes one more candidate the router can pick - when it fits.
A listing is a routing target with a manifest: what it does, which domains it covers, what it costs and who publishes it. Once installed it sits beside your own models and tools, is scored like any other candidate for each request, and shows up in the trace when it wins. Ratings come from workspaces that installed it, one per account.
