Model reference · open weights

Qwen3.5

Qwen3.5 is an open-weight language model from nvidia, listed in the AxForge catalogue. AxForge can bring it up on EU-owned hardware for you on request — with the licence handled where one is required.

LLMs nvidia 2 variants 805k downloads/mo
Request this model on EU hardware All served models Not on the shared API today — deployed on request.

About

What Qwen3.5 is

Model Overview Description: The NVIDIA Qwen3.5-122B-A10B-NVFP4 model is the quantized version of Alibaba's Qwen3.5-122B-A10B model, which is an auto-regressive language model that uses an optimized transformer architecture. For more information, please check here. The NVIDIA Qwen3.5-122B-A10B NVFP4 model is quantized with Model Optimizer. This model is ready for commercial/non-commercial use. <br Third-Party Community Consideration This model is not owned or developed by NVIDIA. This model has been developed and built to a third-party’s requirements for this application and use case; see link to Non-NVIDIA (Qwen3.5-122B-A10B) Model Card from Alibaba. References Nvidia Model Optimizer: https://github.com/NVIDIA/Model-Optimizer License/Terms of Use: Apache license 2.0 Deployment Geography: Global <br Use Case: <br Developers looking to take off-the-shelf, pre-quantized models for deployment in AI Agent systems, chatbots, RAG systems, and other AI-powered applications. <br Release Date: <br Huggingface 06/01/2026 via https://huggingface.co/nvidia/Qwen3.5-122B-A10B-NVFP4 <br Model Architecture: Architecture Type: Transformers <br Network Architecture: Qwen3.5-122B-A10B Mixture of Experts <br Number of Model Parameters: 122B in total and 10B activated <br Input: Input Type(s): Text, Image, Video <br Input Format(s): String, Red, Green, Blue (RGB), Video (MP4/WebM) <br Input Parameters: One-Dimensional (1D), Two-Dimensional (2D), Three-Dimensional (3D) <br Other Properties Related to Input: Context length up to 262K <br Output: Output Type(s): Text <br Output Format: String <br Output Parameters: One-Dimensionali (1D): Sequences <br Other Properties Related to Output: None <br Our AI models are designed and/or optimized to run on NVIDIA GPU-accelerated systems. By leveraging NVIDIA’s hardware (e.g. GPU cores) and software frameworks (e.g., CUDA libraries), the model achieves faster training and inference times compared to CPU-only solutions. <br Software Integration: Supported Runtime Engine(s): <br vLLM <br Supported Hardware Microarchitecture Compatibility: <br NVIDIA Blackwell <br Preferred Operating System(s): <br Linux <br The integration of foundation and fine-t

Summarised from the published model card. Read the full card on the HuggingFace links below.

Specifications

What it is

Makernvidia
TypeLanguage models
Parameters (lead)64.6B
Variants2
Runs withModel Optimizer
Based onQwen/Qwen3.5-122B-A10B
Released2026-05-13
Popularity805k downloads / month
Likes105
LicenceOpen weights

How it works

How language models work

Your prompttext / messagesTransformerattention over tokensNext-token loopgenerate + streamResponsetext · tool callsA language model reads your tokens and predicts the next one, again and again, streaming the reply back.

Variants

Sizes & precisions

Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.

VariantParamsPrecisionVRAMFits 16 GBWeights
Qwen3.5-122B-A10B-NVFP464.6BNVFP4Weights ↗
Qwen3.5-397B-A17B-NVFP4NVFP4Weights ↗

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys nvidia-qwen3-5 for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (nvidia-qwen3-5 below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/chat/completions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"nvidia-qwen3-5","messages":[{"role":"user","content":"Hello"}]}'

Details

Languages, data & research

Tags

Model Optimizer safetensors qwen3_5_moe nvidia ModelOpt Qwen3.5 quantized NVFP4 FP4 nvfp4 fp4 text-generation conversational 8-bit

Licence

Open weights

Open weights under apache-2.0 — commercial use is permitted. Deploy it on AxForge EU hardware on request. Read the licence ↗

Sources

Weights & code

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