AI Rate CardNVIDIA: Nemotron 3.5 Content Safety (free) · openrouter
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...
Input, $/1M Free
Output, $/1M Free
Limits
- Free: 50 requests a day
- Free: 1 000 requests a day (if credits>=10)
- Free: 20 requests a minute
Last checked 04.11.2026 12:08:11 UTC Source
Context 128 000
Max output 8 192
Accepts images, text
Last checked 04.11.2026 12:00:14 UTC
Source provider's page
Price alerts
API
OpenAI-compatible API: the official OpenAI SDKs work with this base URL. Replace YOUR_API_KEY with your key from the provider.
| API base URL | |
|---|---|
| Endpoint | |
| Model id | |
curl
curl https://openrouter.ai/api/v1/moderations \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "nvidia/nemotron-3.5-content-safety:free", "input": "text to check"}'Python
import requests
r = requests.post(
"https://openrouter.ai/api/v1/moderations",
headers={"Authorization": "Bearer YOUR_API_KEY"},
json={
"model": "nvidia/nemotron-3.5-content-safety:free",
"input": "text to check"
},
)
print(r.json())JavaScript
const r = await fetch("https://openrouter.ai/api/v1/moderations", {
method: "POST",
headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
body: JSON.stringify({
"model": "nvidia/nemotron-3.5-content-safety:free",
"input": "text to check"
}),
});
console.log(await r.json());Request (JSON)
{
"model": "nvidia/nemotron-3.5-content-safety:free",
"input": "text to check"
}Response (JSON)
{
"id": "modr-...",
"model": "nvidia/nemotron-3.5-content-safety:free",
"results": [
{
"flagged": false,
"categories": {
"harassment": false,
"violence": false
},
"category_scores": {
"harassment": 0.0001,
"violence": 0.0002
}
}
]
}The address is taken from the provider's model list; check it against the provider's documentation.
Source: AI Rate Card, https://airatecard.com/en/c/offer%3Aopenrouter%7Cnvidia/nemotron-3.5-content-safety%3Afree, prices checked 2026-11-04; seller's page: https://openrouter.ai/nvidia/nemotron-3.5-content-safety
Technical details
ID: offer:openrouter|nvidia/nemotron-3.5-content-safety:free