Models / nvidia

Nemotron 3 Ultra

nvidia/nemotron-3-ultra-550b-a55b

Nemotron 3 Ultra is a nvidia model available through the JACKZ.AI unified API. It accepts text input and returns text, with a 262K tokens context window. Billing is per token at the list prices below, aligned with OpenRouter public pricing.

curl https://api.jackz.ai/v1/chat/completions \
  -H "Authorization: Bearer $JACKZ_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/nemotron-3-ultra-550b-a55b",
    "messages": [{"role": "user", "content": "Hello"}]
  }'