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Nemotron Content Safety Reasoning 4B

Nemotron
by NVIDIA

A context-aware safety model that applies reasoning to enforce domain-specific policies.

Try in Chat
Free EndpointJan 22, 2026open license145K API calls / 30d

Specifications

Context Length
8K
8,192 tokens
Input Price
Free
per 1M tokens
Output Price
Free
per 1M tokens
Modalities
1
text→text

Capabilities

safetycontent moderationreasoning

Tags

nemo-guardrailssafetyreasoning

API Usage

1Router is fully OpenAI-compatible. Just set the base URL and use this model ID:

nvidia/nemotron-content-safety-reasoning-4b
cURL
curl https://api.1router.com/v1/chat/completions \
  -H "Authorization: Bearer $ROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/nemotron-content-safety-reasoning-4b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'