NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
Model details →NVIDIA: Nemotron 3 Ultra (batch) vs OpenAI: GPT-5 Nano
OpenAI: GPT-5 Nano wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Model details →Side-by-side comparison
| Capability | NVIDIA: Nemotron 3 Ultra (batch) | OpenAI: GPT-5 Nano | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 512K | 400K | 🏆 NVIDIA: Nemotron 3 Ultra (batch) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.30 | $0.05 | 🏆 OpenAI: GPT-5 Nano |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.80 | $0.40 | 🏆 OpenAI: GPT-5 Nano |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 OpenAI: GPT-5 Nano |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is NVIDIA: Nemotron 3 Ultra (batch) better than OpenAI: GPT-5 Nano?
OpenAI: GPT-5 Nano wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between NVIDIA: Nemotron 3 Ultra (batch) and OpenAI: GPT-5 Nano?
Input: $0.30 vs $0.05 per 1M tokens. Output: $1.80 vs $0.40 per 1M tokens.
What context windows do NVIDIA: Nemotron 3 Ultra (batch) and OpenAI: GPT-5 Nano support?
NVIDIA: Nemotron 3 Ultra (batch) supports up to 512K tokens. OpenAI: GPT-5 Nano supports up to 400K tokens.
Do both NVIDIA: Nemotron 3 Ultra (batch) and OpenAI: GPT-5 Nano support tool calling?
NVIDIA: Nemotron 3 Ultra (batch): yes. OpenAI: GPT-5 Nano: yes.
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