NVIDIA
Nemotron 3 Ultra 550B
Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy
Model facts
- Context window
- 1M tokens
- Maximum output
- 66K tokens
- Cheapest paid input
- $0.5 per 1M tokens
- Cheapest paid output
- $2.5 per 1M tokens
- Open weights
- yes
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, temperature control, open weights, text.
Observed price history
- 2026-08-24: $0.5 input / $2.5 output per 1M tokens
API providers
- NanoGPT (Nvidia) — model id nvidia/nemotron-3-ultra-550b-a55b; $0.5 input / $2.5 output per 1M tokens; provider documentation