CyberSecQwen 4B vs Qwen3.5 2B Text Only
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| CyberSecQwen 4B | Qwen3.5 2B Text Only | |
|---|---|---|
| Parameters | 4.0B | 1.9B |
| Context | 262K | 262K |
| Architecture | Qwen3ForCausalLM | Qwen3_5ForCausalLM |
| License | Apache 2.0 | Apache 2.0 |
| Downloads | 1.2K | 104 |
| Released | May 2026 | Mar 2026 |
VRAM by Quantization: CyberSecQwen 4B vs Qwen3.5 2B Text Only
| Quantization | Bits | CyberSecQwen 4B VRAM | Qwen3.5 2B Text Only VRAM |
|---|---|---|---|
| BF16 | 16.00 | 8.5 GB | 4.2 GB |
Verdict
Qwen3.5 2B Text Only needs less VRAM at BF16 (4.2 GB vs 8.5 GB), so it fits on smaller GPUs. CyberSecQwen 4B is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, CyberSecQwen 4B or Qwen3.5 2B Text Only?
At BF16, CyberSecQwen 4B needs 8.5 GB and Qwen3.5 2B Text Only needs 4.2 GB, so Qwen3.5 2B Text Only is the lighter option to run locally.
- Which has a longer context window, CyberSecQwen 4B or Qwen3.5 2B Text Only?
CyberSecQwen 4B supports 262,144 tokens and Qwen3.5 2B Text Only supports 262,144 tokens.
- What is the difference between CyberSecQwen 4B and Qwen3.5 2B Text Only?
CyberSecQwen 4B is a 4.0B model from lablab-ai-amd-developer-hackathon (Qwen family), while Qwen3.5 2B Text Only is a 1.9B model from principled-intelligence (Qwen family). Compare their VRAM requirements above to see which fits your GPU or Mac.