# Nemotron 3.5 Content Safety (free)

> Nemotron 3.5 Content Safety (free) is an open-weight language model from NVIDIA, released on 4 Jun 2026. It accepts text and images and generates text, with a 128K-token context window and up to 8K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.20 per million input tokens and $0.20 per million output tokens (OpenRouter), across 2 providers we track.

Source page: https://www.aimodel.directory/models/nemotron-3-5-content-safety
Last verified: 4 Oct 2026

## Specifications

- **Developer:** NVIDIA
- **Release date:** 4 Jun 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Weights:** Open weights (source: Hugging Face, https://huggingface.co/nvidia/Nemotron-3.5-Content-Safety)
- **License:** openmdw-license-agreement (source: Hugging Face, https://huggingface.co/nvidia/Nemotron-3.5-Content-Safety)
- **Parameters:** 4.3B (source: Hugging Face, https://huggingface.co/nvidia/Nemotron-3.5-Content-Safety)
- **Context window:** 128K (128,000 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Max output:** 8K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Input:** Text and images (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Output:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Reasoning mode:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Tool calling:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Structured output:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/openrouter/models/nvidia/nemotron-3.5-content-safety:free.toml)
- **Hugging Face:** nvidia/Nemotron-3.5-Content-Safety (source: Hugging Face, https://huggingface.co/nvidia/Nemotron-3.5-Content-Safety)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| NVIDIA NIM | Free | Free | – | 128K |
| OpenRouter | $0.20 | $0.20 | – | 131K |

## FAQ

### What is the context window of Nemotron 3.5 Content Safety (free)?

Nemotron 3.5 Content Safety (free) has a context window of 128,000 tokens (128K) and can generate up to 8,192 tokens in a single response, according to models.dev.

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

Nemotron 3.5 Content Safety (free) is listed from $0.20 per million input tokens and $0.20 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.

### Is Nemotron 3.5 Content Safety (free) open source?

Nemotron 3.5 Content Safety (free) is an open-weight model: its weights are published on Hugging Face as nvidia/Nemotron-3.5-Content-Safety under the openmdw-license-agreement license. Check the license terms before commercial use.

### When was Nemotron 3.5 Content Safety (free) released?

NVIDIA released Nemotron 3.5 Content Safety (free) on 4 Jun 2026, according to models.dev.

### Which providers offer Nemotron 3.5 Content Safety (free)?

We track Nemotron 3.5 Content Safety (free) on 2 providers: NVIDIA NIM, OpenRouter.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Nemotron 3.5 Content Safety (free)", https://www.aimodel.directory/models/nemotron-3-5-content-safety