Last refreshed 2026-10-17. Next refresh: weekly.
Why use Nemotron 3 Ultra on Weights & Biases?
Weights & Biases offers Nemotron 3 Ultra with pay-as-you-go pricing at $0.50/1M input tokens. Weights & Biases is an ML experiment tracking, model versioning, and collaboration platform that helps teams build and improve AI models faster.
Compare Nemotron 3 Ultra across 8 providers to find the best fit for your use caseInput / 1M
$0.50
Output / 1M
$2.15
Cache
read $0.10
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55BModel ID
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55BRequest example
Curated snippets for this provider are not sourced yet. Use Weights & Biases documentation with model ID
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B.Gotchas
- Use provider model ID "nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B", not the LLMReference slug "nemotron-3-ultra".
Compare Nemotron 3 Ultra Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | — | — |
| DeepInfra | $0.50 | $2.20 |
| Baseten API | $0.60 | $2.40 |
| Venice AI | $0.63 | $3.13 |
| Fireworks AI | $0.60 | $2.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.50 |
| Output tokens | $2.15 |
Capabilities
ReasoningJSON / Tool use
About Nemotron 3 Ultra
NVIDIA's open frontier-reasoning model (550B total / 55B active MoE, hybrid Transformer-Mamba). Highest Artificial Analysis Intelligence Index for any US open model (score: 48). 300+ tokens/second. 1M-token context. Announced at Computex 2026. Pricing: ~$0.60/$2.60 per 1M tokens (provider median); free tier on some providers.
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Model Specs
Released2026-06-04
Parameters550B
Context1M
ArchitectureMixture of Experts