Qwen 3 — local AI model by Alibaba Cloud

Written by Jakub Rusinowski · Last updated

Alibaba's model series with a hybrid thinking mode. Qwen 3 models can toggle between fast response mode and deep Chain-of-Thought reasoning on demand — type /think for hard problems, /no_think for fast answers. Available in dense and MoE variants. Previous generation — superseded by Qwen 3.5 and Qwen 3.6, which extend context length and improve reasoning efficiency. Still widely used and supported.

Variants

The smallest Qwen 3 variant needs about 6 GB of VRAM at Q4_K_M — quantized weights plus framework overhead, before any KV cache.

ModelVRAM
Qwen 3 8B →
8B
~5.8 GB
Qwen 3 14B →
14B
~9.7 GB
Qwen 3 32B →
32B
~20.6 GB
Qwen 3 30B-A3B (MoE) →
30B (3B active)
~19.2 GB
Qwen 3 235B-A22B (MoE) →
235B (22B active)
~142.7 GB

Memory is quantized weights plus overhead at Q4_K_M, from the same engine as the GPU & VRAM checker.

How to run Qwen 3 locally

Install Ollama, then pull the tag.

ollama run qwen3:8b

Pick a size above for its own VRAM figure, speed estimate and install command.

Licence

Apache-2.0Commercial use permitted

Commercial use permitted. No usage restrictions beyond attribution.

Applies to: Qwen 3 8B, Qwen 3 14B, Qwen 3 32B, Qwen 3 30B-A3B (MoE), Qwen 3 235B-A22B (MoE)

Recommended GPU

The cheapest catalogued GPU that runs Qwen 3 locally (min 6 GB VRAM) is the Intel Arc B570 (10 GB).

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Intel Arc B570 10GB
10 GB VRAM · 150 W board power
2026 prices are volatile — check the current listing.

Can I run Qwen 3 on my GPU?

Qwen 3 — frequently asked questions

How much VRAM does Qwen 3 need?

Qwen 3 needs about 6 GB VRAM at Q4_K_M quantization for its smallest variant. Variants: Qwen 3 8B (6 GB, Q4_K_M); Qwen 3 14B (10 GB, Q4_K_M); Qwen 3 32B (21 GB, Q4_K_M); Qwen 3 30B-A3B (MoE) (19 GB, Q4_K_M). On Apple Silicon, unified memory counts toward this requirement.

Can I run Qwen 3 on an RTX 4090 (24 GB)?

Yes — Qwen 3 runs on an RTX 4090 (24 GB) and other 24 GB cards such as the RTX 3090. Smaller variants also fit comfortably on 8–16 GB GPUs at Q4_K_M.

What quantization should I use for Qwen 3?

Q4_K_M is the best balance of quality and VRAM for Qwen 3 in most cases. Choose Q8_0 for near-lossless quality if you have spare VRAM, or smaller quants (Q3/Q2) only when memory is tight.

How do I run Qwen 3 with Ollama?

Install Ollama, then run: ollama run qwen3:8b. This downloads Qwen 3 and starts a local, OpenAI-compatible endpoint — no internet connection is needed after the initial download.