Nemotron 3 free API
NVIDIA Nemotron 3 family. OpenRouter :free hosts Nano Omni reasoning, Super 120B, Ultra 550B, and 3.5 Lightning. Also reachable via NVIDIA NIM free developer endpoints.
Free providers
| Provider | RPM | Daily | Model ID | Checked |
|---|---|---|---|---|
| openrouter-free | 20 | 50 | nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:free | 2026-10-10 |
| nvidia-nim | 40 | — | nvidia/nemotron | 2026-10-10 |
- OpenRouter: 1,000 :free requests/day after buying $10 in credits.
- NVIDIA NIM: Per-model trial limit; NVIDIA does not publish it. Your cap is shown on build.nvidia.com. Prototyping only, not production.
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-nano-omni-30b-a3b-reasoning:free",
"messages": [{"role": "user", "content": "Hello"}]
}' All provider examples
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-nano-omni-30b-a3b-reasoning:free",
"messages": [{"role": "user", "content": "Hello"}]
}' nvidia-nim
curl https://integrate.api.nvidia.com/v1/chat/completions \
-H "Authorization: Bearer $NVIDIA_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "nvidia/nemotron",
"messages": [{"role": "user", "content": "Hello"}]
}' FAQ
- Is Nemotron 3 free via API?
- Yes — free hosted routes are listed on this page from openrouter-free, nvidia-nim. 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?
- This model has free routes on openrouter-free, nvidia-nim. Prefer the provider with higher daily limits for sustained use, or OpenRouter when you want one key across many :free models.
- What are the free rate limits for Nemotron 3?
- 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.