nvidia/nemotron-3-ultra-550b-a55b:free
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
Point the OpenAI SDK at https://tokenroute.app/api/v1 and use a TokenRoute API key.
curl https://tokenroute.app/api/v1/chat/completions \
-H "Authorization: Bearer $TOKENROUTE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "nvidia/nemotron-3-ultra-550b-a55b:free",
"messages": [{ "role": "user", "content": "Hello!" }]
}'