# NVIDIA: Nemotron 3.5 Content Safety: AI model fact sheet

- **Provider:** nvidia
- **Released:** 2026-06-04
- **Context window:** 128,000 tokens
- **API pricing:** $0.000 / 1M input, $0.000 / 1M output
- **OpenRouter ID:** nvidia/nemotron-3.5-content-safety:free
- **Capabilities:** analysis, data-extraction

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 text and image input and returning text output: a safe/unsafe classification for the user prompt and the response, safety category labels, and an optional reasoning trace. It covers 12 languages with a 128K context window.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/nemotron-3.5-content-safety