NVIDIA · Free API

Nemotron 3.5 Content Safety (OpenRouter)

Name: Nemotron 3.5 Content Safety (OpenRouter)
Author: NVIDIA

Free “:free” variant on OpenRouter – rate-limited, no charge.

Free API Available 125K 🕒 Verified on 2026-10-22

NVIDIA Nemotron 3.5 Content Safety is a compact 4B-parameter multimodal guardrail model from NVIDIA, fine-tuned from Google Gemma-3-4B

Free conditions

Free conditions: Free “:free” variant on OpenRouter – rate-limited, no charge.
Free until: —
Rate limits: 20 requests/min; 50 requests/day if you have bought fewer than 10 credits, 1,000/day after buying at least 10 (shared across all :free models).
Sign-up / login: Required
Real-name verification: —
Credit card: Not required
Region: —
Data use: —

Specs

Provider: NVIDIA
Platform: OpenRouter
Type: Free API
Modalities: Text · Vision
Parameters: —
Context length: 125K (128,000 tokens)
License: —
Tool calling: No
Released: 2026-06-04

How to access

API base URL: https://openrouter.ai/api/v1
Model ID: nvidia/nemotron-3.5-content-safety:free
Hugging Face: https://huggingface.co/nvidia/Nemotron-3.5-Content-Safety
Platform page: https://openrouter.ai/nvidia/nemotron-3.5-content-safety:free

Official sources

OpenRouter models API https://openrouter.ai/api/v1/models
OpenRouter – Nemotron 3.5 Content Safety https://openrouter.ai/nvidia/nemotron-3.5-content-safety:free
OpenRouter API – Limits https://openrouter.ai/docs/api_reference/limits

🕒 Verified on 2026-10-22 · Free terms change often. Always confirm limits, data-use policy and regional availability on the official page before relying on a free tier.

Nemotron 3.5 Content Safety: paid API prices on 1 channels →

Free conditions

Specs

How to access

Official sources

Other free options from the same provider or model