Which has a longer context window, CyberSecQwen 4B or Qwen3.5 4B DFlash?

CyberSecQwen 4B supports 262,144 tokens and Qwen3.5 4B DFlash supports 262,144 tokens.

What is the difference between CyberSecQwen 4B and Qwen3.5 4B DFlash?

CyberSecQwen 4B is a 4.0B model from lablab-ai-amd-developer-hackathon (Qwen family), while Qwen3.5 4B DFlash is a 537M model from z-lab (Qwen family). Compare their VRAM requirements above to see which fits your GPU or Mac.

CyberSecQwen 4B vs Qwen3.5 4B DFlash

Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.

CyberSecQwen 4B

lablab-ai-amd-developer-hackathon · 4.0B

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Qwen3.5 4B DFlash

z-lab · 537M

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Specifications

	CyberSecQwen 4B	Qwen3.5 4B DFlash
Parameters	4.0B	537M
Context	262K	262K
Architecture	Qwen3ForCausalLM	DFlashDraftModel
License	Apache 2.0	MIT
Downloads	1.2K	337
Released	May 2026	Mar 2026

VRAM by Quantization: CyberSecQwen 4B vs Qwen3.5 4B DFlash

Quantization	Bits	CyberSecQwen 4B VRAM	Qwen3.5 4B DFlash VRAM
Q2_K	3.40	—	0.6 GB
Q3_K_M	3.90	—	0.6 GB
Q3_K_S	3.50	—	0.6 GB
Q4_K_M	4.80	—	0.7 GB
Q5_K_M	5.70	—	0.7 GB
Q6_K	6.60	—	0.8 GB
Q8_0	8.00	—	0.9 GB

Verdict

CyberSecQwen 4B is the more widely downloaded of the two.

Frequently Asked Questions

Which has a longer context window, CyberSecQwen 4B or Qwen3.5 4B DFlash?: CyberSecQwen 4B supports 262,144 tokens and Qwen3.5 4B DFlash supports 262,144 tokens.
What is the difference between CyberSecQwen 4B and Qwen3.5 4B DFlash?: CyberSecQwen 4B is a 4.0B model from lablab-ai-amd-developer-hackathon (Qwen family), while Qwen3.5 4B DFlash is a 537M model from z-lab (Qwen family). Compare their VRAM requirements above to see which fits your GPU or Mac.