Nemotron 3.5 Content Safety free API
NVIDIA Nemotron 3.5 Content Safety on OpenRouter :free (128K context, text+image). Compact 4B guardrail model that labels prompts and model responses as safe or unsafe, with optional category labels. Use it in moderation pipelines. 50 requests/day free cap.
Free providers
| Provider | RPM | Daily | Model ID | Checked |
|---|---|---|---|---|
| openrouter-free | 20 | 50 | nvidia/nemotron-3.5-content-safety:free | 2026-10-10 |
- OpenRouter: 1,000 :free requests/day after buying $10 in credits.
Example (openrouter-free)
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "nvidia/nemotron-3.5-content-safety:free",
"messages": [{"role": "user", "content": "Hello"}]
}' FAQ
- Is Nemotron 3.5 Content Safety free via API?
- Yes — free hosted routes are listed on this page from openrouter-free. Limits change; check the table and the provider pages for the latest RPM and daily caps.
- Which free provider should I use for Nemotron 3.5 Content Safety?
- Use openrouter-free for the free route on this page.
- What are the free rate limits for Nemotron 3.5 Content Safety?
- Published free-tier figures on this page include 20 RPM and 50 requests/day. Confirm on the linked provider page before production use.
- How do I stack multiple free API keys?
- See our free API stack guide to combine Groq, OpenRouter, and Gemini keys, then compare limits on the free API comparison table.
Limits checked against official docs on 2026-10-10. Rates change without notice. Not affiliated with providers unless noted. Verify before production use.