Free endpoint — do not send confidential or personal data
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nemotron-3-ultra-550b-a55b:free
NVIDIA
nemotron-3-ultra-550b-a55b:freeNVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE).
Pricing
Input
S$0.00/M
Output
S$0.00/M
Cache read
Reusing a prompt already cached upstream
Not offered
Cache write
Storing a prompt for later reuse
Not offered
Struck-through figures are the vendor's published list price.
Performance
Loading throughput, latency, and success rate…
Quick start
Full documentationThe API is OpenAI-compatible — point the base URL here and pass the model id.
curl https://api.lulutokens.ai/v1/chat/completions \ -H "Authorization: Bearer $LULU_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "nemotron-3-ultra-550b-a55b:free", "messages": [{"role": "user", "content": "Hello"}] }'from openai import OpenAIclient = OpenAI(base_url="https://api.lulutokens.ai/v1", api_key="LULU_API_KEY")response = client.chat.completions.create( model="nemotron-3-ultra-550b-a55b:free", messages=[{"role": "user", "content": "Hello"}],)