How much does Nemotron 3.5 Content Safety (free) cost?

This endpoint is free (rate-limited). Just create a Hormouz account and generate an API key.

How do I use Nemotron 3.5 Content Safety (free) from inside Iran?

Create a Hormouz account and generate an API key. Hormouz gives you a stable route to the model from inside Iran, with no foreign credit card or circumvention tooling needed.

Is Nemotron 3.5 Content Safety (free) OpenAI-compatible?

Yes. Hormouz serves an OpenAI-compatible API. Point your base URL at Hormouz and swap in a Hormouz key; your existing SDKs and code work without a rewrite.

What does Nemotron 3.5 Content Safety (free) do?

It is a guardrail model for content moderation: it classifies both the user prompt and the model response as safe/unsafe, returns safety-category labels, and can provide a reasoning trace.

How many languages does Nemotron 3.5 Content Safety (free) support?

It covers 12 languages and offers a context window of up to 128K tokens.

Does Nemotron 3.5 Content Safety (free) accept image input?

Yes. It is multimodal and inspects image input in addition to text for moderation.

NVIDIA: Nemotron 3.5 Content Safety (free): AI model

Nemotron 3.5 Content Safety (free) is NVIDIA's compact 4B-parameter guardrail model for moderating inputs and outputs, with text and image support across 12 languages. Reachable from inside Iran through Hormouz.

Context window:: 128,000 tokens
Pricing:: $0.00/M in · $0.00/M out
Type:: text, image

Vision
Streaming
Long context

Thinking levels:

Nemotron 3.5 Content Safety is a compact 4B-parameter multimodal guardrail model from NVIDIA, fine-tuned from Google's Gemma-3-4B and built for content moderation. It inspects both the input to and the response from a model, accepts text and image input, and returns text output.

Its output includes a safe/unsafe classification for the user prompt and for the response, safety-category labels and an optional reasoning trace. It covers 12 languages, offers a context window of up to 128K tokens, and includes a togglable reasoning mode. A fit for safety pipelines, content classification and enterprise policy enforcement. Hormouz exposes an OpenAI-compatible API. Point your base URL at Hormouz, drop in a Hormouz key, and existing OpenAI SDK code runs unchanged.

This endpoint is free (rate-limited). Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

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...

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/nemotron-3.5-content-safety:free",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

Vendor	NVIDIA
Type	Text, Image
Context window	128,000 tokens
Pricing	$0.00/M in · $0.00/M out
API	Chat Completions
Capabilities	Streaming · Vision

Code example

cURL

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/nemotron-3.5-content-safety:free",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Python

from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="nvidia/nemotron-3.5-content-safety:free",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "nvidia/nemotron-3.5-content-safety:free",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the NVIDIA: Nemotron 3.5 Content Safety (free) API, paid in rial

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FAQ

How much does Nemotron 3.5 Content Safety (free) cost?: This endpoint is free (rate-limited). Just create a Hormouz account and generate an API key.
How do I use Nemotron 3.5 Content Safety (free) from inside Iran?: Create a Hormouz account and generate an API key. Hormouz gives you a stable route to the model from inside Iran, with no foreign credit card or circumvention tooling needed.
Is Nemotron 3.5 Content Safety (free) OpenAI-compatible?: Yes. Hormouz serves an OpenAI-compatible API. Point your base URL at Hormouz and swap in a Hormouz key; your existing SDKs and code work without a rewrite.
What does Nemotron 3.5 Content Safety (free) do?: It is a guardrail model for content moderation: it classifies both the user prompt and the model response as safe/unsafe, returns safety-category labels, and can provide a reasoning trace.
How many languages does Nemotron 3.5 Content Safety (free) support?: It covers 12 languages and offers a context window of up to 128K tokens.
Does Nemotron 3.5 Content Safety (free) accept image input?: Yes. It is multimodal and inspects image input in addition to text for moderation.

Updated 2026-10-13