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NVIDIA: Nemotron 3 Ultra
Nvidiatext9.1 / 10 Overall Rating
NVIDIA Nemotron 3 Ultra is a 550B parameter (55B active) hybrid Transformer-Mamba mixture-of-experts model built for complex reasoning and agent orchestration. It offers a 512K context window and a 461K max output token limit at low inference costs. Its architecture makes it a cost-effective alternative to GPT-4o and Claude 3.5 Sonnet for long-context workloads.
Context Window
512K
Knowledge Cutoff
2025
Max Output
16K
License
Proprietary
Where it Excels (Pros)
- 512K token context window
- Cheaper pricing than GPT-4o
- Massive 461K output capacity
- Efficient Transformer-Mamba MoE architecture
Limitations (Cons)
- Lacks native multimodal support
- Heavy compute footprint self-hosted
Benchmark Breakdown
Reasoning (MMLU)82%
Coding (HumanEval)78%
Mathematics (MATH)76%
Long-Context Retrieval95%
Pricing Matrix
Input cost / 1M tokens$0.60
Output cost / 1M tokens$3.60
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