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Models › nvidia › NVIDIA: Nemotron 3 Ultra

NVIDIA: Nemotron 3 Ultra — pricing & benchmarks

By nvidia · Updated 2026-10-06 · Open weights · custom licensestep-by-step reasoningopen weights / self-hostable

NVIDIA: Nemotron 3 Ultra costs $0.5 per 1M input tokens and $2.2 per 1M output tokens, with a 262K context window. It is best suited for step-by-step reasoning, open weights / self-hostable, and is available through one OpenAI-compatible Appmo API key.
$0.5Input / 1M
$2.2Output / 1M
262KContext
401.2KHF downloads (30d)
359HF likes

What NVIDIA: Nemotron 3 Ultra is used for

NVIDIA: Nemotron 3 Ultra is best suited for step-by-step reasoning, open weights / self-hostable. Access it through one Appmo API key alongside 458 other models — Appmo's optimizer can route to it automatically when it is the best value for a request. Weights: huggingface.co/nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16.

Use it via the Appmo API (OpenAI-compatible)

curl https://appmo.com/v1/chat/completions \
  -H "Authorization: Bearer $APPMO_KEY" \
  -d '{"model":"nvidia/nemotron-3-ultra-550b-a55b","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does NVIDIA: Nemotron 3 Ultra cost?
NVIDIA: Nemotron 3 Ultra costs $0.5 per 1M input tokens and $2.2 per 1M output tokens ($0.925 blended), as of 2026-10-06. Prices are expected to fall as competition increases.

What is NVIDIA: Nemotron 3 Ultra best for?
NVIDIA: Nemotron 3 Ultra is best suited for step-by-step reasoning, open weights / self-hostable.

How do I use NVIDIA: Nemotron 3 Ultra?
Send requests to Appmo's OpenAI-compatible endpoint with model id "nvidia/nemotron-3-ultra-550b-a55b" and one API key — no separate provider account needed.

Is NVIDIA: Nemotron 3 Ultra open source?
Yes — its weights are public on Hugging Face (nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16) under a custom license; check the license terms before commercial use.

Can NVIDIA: Nemotron 3 Ultra create images?
No, NVIDIA: Nemotron 3 Ultra works with text.