Nex N2 Pro — Hardware Requirements & GPU Compatibility
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Nex N2 Pro is a 396.8B-parameter open language model from nex-agi. It supports a context window of up to 262,144 tokens. At BF16 it needs about 794.03 GB of VRAM — see which GPUs and Macs can run it below.
547 downloads
48 likesSpecifications
- Publisher
- nex-agi
- Parameters
- 396.8B
- Architecture
- Qwen3_5MoeForConditionalGeneration
- Context Length
- 262,144 tokens
- Vocabulary Size
- 248,320
- Release Date
- 2026-06-04
- License
- Apache 2.0
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HuggingFace
How Much VRAM Does Nex N2 Pro Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16 | 16.00 | 794.0 GB | 810.0 GB | 793.60 GB | Brain floating point 16 — preferred for training |
Which GPUs Can Run Nex N2 Pro?
BF16 · 794.0 GBNex N2 Pro (BF16) requires 794.0 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 1033+ GB is recommended. Using the full 262K context window can add up to 16.0 GB, bringing total usage to 810.0 GB. No single GPU has enough memory — multi-GPU or cluster setups are needed.
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Frequently Asked Questions
- How much VRAM does Nex N2 Pro need?
Nex N2 Pro requires 794.0 GB of VRAM at BF16. Full 262K context adds up to 16.0 GB (810.0 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 396.8B × 16 bits ÷ 8 = 793.6 GB
KV Cache + Overhead ≈ 0.4 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 16.4 GB (at full 262K context)
VRAM usage by quantization
BF16794.0 GBBF16 + full context810.0 GB- Can NVIDIA GeForce RTX 5090 run Nex N2 Pro?
No — Nex N2 Pro requires at least 794.0 GB at BF16, which exceeds the NVIDIA GeForce RTX 5090's 32 GB of VRAM.
- Can I run Nex N2 Pro on a Mac?
Nex N2 Pro requires at least 794.0 GB at BF16, which exceeds the unified memory of most consumer Macs. You would need a Mac Studio or Mac Pro with a high-memory configuration.
- Can I run Nex N2 Pro locally?
Yes — Nex N2 Pro can run locally on consumer hardware. At BF16 quantization it needs 794.0 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- What's the download size of Nex N2 Pro?
At BF16, the download is about 793.60 GB.
- Which GPUs can run Nex N2 Pro?
No single consumer GPU has enough VRAM to run Nex N2 Pro at BF16 (794.0 GB). Multi-GPU or professional hardware is required.
- Which devices can run Nex N2 Pro?
Nex N2 Pro requires at least 794.0 GB at BF16, which exceeds the unified memory of most consumer devices. A high-memory Mac Studio, Mac Pro, or multi-GPU desktop setup is recommended.