Text model
NVIDIA Nemotron 3 Ultra 550B A55B BF16 API
NVIDIA Nemotron 3 Ultra 550B A55B BF16 is a text model from NVIDIA, live on Corent. Answers in the OpenAI-compatible chat format.
Two ways to run it
Name NVIDIA Nemotron 3 Ultra 550B A55B BF16, or let Corent choose
You pick
POST /v1/chat/completions{ "model": "corent-nvidia-nemotron-3-ultra-550b-a55b-bf16", "messages": [{ "role": "user", "content": "Write a haiku about shipping fast." }]}
Direct access runs NVIDIA Nemotron 3 Ultra 550B A55B BF16 and no other model. No substitution, you pay its price plus Corent’s fee, and the receipt names the model you pinned.
The router picks
POST /v1/chat/completions{ "model": "corent", "messages": [{ "role": "user", "content": "Write a haiku about shipping fast." }]}
Leave the model out and Corent reads the prompt, weighs every live text model on quality and price, and picks NVIDIA Nemotron 3 Ultra 550B A55B BF16 whenever it is the best fit. The receipt shows the exact charge.
First call
One key, one request
curl -X POST https://api.corent.tech/v1/chat/completions \ -H "Authorization: Bearer $CORENT_API_KEY" \ -H "Content-Type: application/json" \ -d '{"model": "corent-nvidia-nemotron-3-ultra-550b-a55b-bf16", "messages": [{"role": "user", "content": "Write a haiku about shipping fast."}]}'
The response carries the result and a receipt: the model that served you and the exact cost in cents. Full request and response shapes are in the docs.
Details
NVIDIA Nemotron 3 Ultra 550B A55B BF16, as the API serves it today
| Pin by name | corent-nvidia-nemotron-3-ultra-550b-a55b-bf16 |
|---|---|
| Kind of result | Text |
| Endpoint | POST /v1/chat/completions |
| Made by | NVIDIA |
| Quality | 8.7 out of 10, Corent’s score |
| Status | Live |
| Typical price | $0.03 to $0.10 a typical reply. See pricing |
These fields come from the live catalog, the same list the full model catalog prints, so they match what the API serves.
FAQ
Common questions
Does NVIDIA Nemotron 3 Ultra 550B A55B BF16 have an API?
Yes. NVIDIA Nemotron 3 Ultra 550B A55B BF16 is served through the Corent API on POST /v1/chat/completions. Pin the exact name corent-nvidia-nemotron-3-ultra-550b-a55b-bf16 and you get that model or nothing: no substitution, and the receipt names the model you pinned. One Corent key covers it alongside every other model in the catalog.
How much does NVIDIA Nemotron 3 Ultra 550B A55B BF16 cost on Corent?
You pay the model’s price plus Corent’s fee, and the exact charge comes back on every response. Text is billed per token, and a typical reply on Corent costs $0.03 to $0.10, depending on the model and the length. Typical prices for every kind of result are on the pricing page.
Do I have to pick NVIDIA Nemotron 3 Ultra 550B A55B BF16?
No. Leave the model out and Corent reads each prompt, picks the cheapest live model that does the job well (or the top one with "quality": "best"), and switches models if one fails. Pinning corent-nvidia-nemotron-3-ultra-550b-a55b-bf16 is for when you want exactly this model on every request.
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Start
Run NVIDIA Nemotron 3 Ultra 550B A55B BF16 in your next request
One key opens the whole catalog: pin NVIDIA Nemotron 3 Ultra 550B A55B BF16, or leave the model out and let Corent pick. Start with $5 in prepaid credits, no subscription.