Qwen3

About

What Qwen3 is

Model Overview Description: The NVIDIA Qwen3-8B FP8 model is the quantized version of Alibaba's Qwen3-8B model, which is an auto-regressive language model that uses an optimized transformer architecture. For more information, please check here. The NVIDIA Qwen3-8B FP8 model is quantized with TensorRT 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 (Qwen3-8B) Model Card. License/Terms of Use: Use of this model is governed by 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 09/15/2025 via https://huggingface.co/nvidia/Qwen3-8B-FP8 <br Model Architecture: Architecture Type: Transformers <br Network Architecture: Qwen3-8B <br This model was developed based on Qwen3-8B Number of model parameters: 8.210^9 Input: Input Type(s): Text <br Input Format(s): String <br Input Parameters: 1D (One-Dimensional): Sequences <br Other Properties Related to Input: Context length up to 131K <br Output: Output Type(s): Text <br Output Format: String <br Output Parameters: 1D (One-Dimensional): Sequences <br Other Properties Related to Output: N/A <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 TensorRT-LLM <br Supported Hardware Microarchitecture Compatibility: <br NVIDIA Blackwell <br Preferred Operating System(s): <br Linux <br Model Version(s): The model is quantized with nvidia-modelopt v0.35.0 <br Post Training Quantization This model was obtained by quantizing the weights and activations of Qwen3-8B to FP8 data type, ready for inference with TensorRT-LLM. On

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

Specifications

What it is

How it works

How language models work

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.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys nvidia-qwen3 for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (nvidia-qwen3 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","messages":[{"role":"user","content":"Hello"}]}'

Details

Languages, data & research

Licence

Open weights

Sources

Weights & code

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