CyberSecQwen 4B vs Qwen3.5 4B Safety Thinking
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| CyberSecQwen 4B | Qwen3.5 4B Safety Thinking | |
|---|---|---|
| Parameters | 4.0B | 4.2B |
| Context | 262K | 262K |
| Architecture | Qwen3ForCausalLM | Qwen3_5ForConditionalGeneration |
| License | Apache 2.0 | Apache 2.0 |
| Downloads | 1.2K | 2.8K |
| Released | May 2026 | Mar 2026 |
VRAM by Quantization: CyberSecQwen 4B vs Qwen3.5 4B Safety Thinking
| Quantization | Bits | CyberSecQwen 4B VRAM | Qwen3.5 4B Safety Thinking VRAM |
|---|---|---|---|
| Q2_K | 3.40 | — | 2.3 GB |
| Q3_K_M | 3.90 | — | 2.5 GB |
| Q3_K_S | 3.50 | — | 2.3 GB |
| Q4_K_M | 4.80 | — | 3.0 GB |
| Q5_K_M | 5.70 | — | 3.5 GB |
| Q6_K | 6.60 | — | 3.9 GB |
| Q8_0 | 8.00 | — | 4.7 GB |
Verdict
Qwen3.5 4B Safety Thinking is the more widely downloaded of the two.
Frequently Asked Questions
- Which has a longer context window, CyberSecQwen 4B or Qwen3.5 4B Safety Thinking?
CyberSecQwen 4B supports 262,144 tokens and Qwen3.5 4B Safety Thinking supports 262,144 tokens.
- What is the difference between CyberSecQwen 4B and Qwen3.5 4B Safety Thinking?
CyberSecQwen 4B is a 4.0B model from lablab-ai-amd-developer-hackathon (Qwen family), while Qwen3.5 4B Safety Thinking is a 4.2B model from MerlinSafety (Qwen family). Compare their VRAM requirements above to see which fits your GPU or Mac.