Qwen3.5 9B Abliterated vs Qwen3 8B Base
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| Qwen3.5 9B Abliterated | Qwen3 8B Base | |
|---|---|---|
| Parameters | 9.0B | 8.2B |
| Context | 262K | 33K |
| Architecture | Qwen3_5ForCausalLM | Qwen3ForCausalLM |
| License | Apache 2.0 | Apache 2.0 |
| Downloads | 1.7K | 1.9M |
| Released | Mar 2026 | May 2025 |
VRAM by Quantization: Qwen3.5 9B Abliterated vs Qwen3 8B Base
| Quantization | Bits | Qwen3.5 9B Abliterated VRAM | Qwen3 8B Base VRAM |
|---|---|---|---|
| Q3_K_L | 4.10 | 5.2 GB | — |
| Q4_K_M | 4.80 | 5.9 GB | 5.5 GB |
| Q5_0 | 5.00 | — | 5.7 GB |
| Q5_K_M | 5.70 | 7.0 GB | 6.4 GB |
| Q6_K | 6.60 | 8.0 GB | 7.4 GB |
| Q8_0 | 8.00 | 9.5 GB | 8.8 GB |
Verdict
Qwen3 8B Base needs less VRAM at Q4_K_M (5.5 GB vs 5.9 GB), so it fits on smaller GPUs. Qwen3.5 9B Abliterated supports a longer context window (262K tokens). Qwen3 8B Base is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, Qwen3.5 9B Abliterated or Qwen3 8B Base?
At Q4_K_M, Qwen3.5 9B Abliterated needs 5.9 GB and Qwen3 8B Base needs 5.5 GB, so Qwen3 8B Base is the lighter option to run locally.
- Which has a longer context window, Qwen3.5 9B Abliterated or Qwen3 8B Base?
Qwen3.5 9B Abliterated supports 262,144 tokens and Qwen3 8B Base supports 32,768 tokens.
- What is the difference between Qwen3.5 9B Abliterated and Qwen3 8B Base?
Qwen3.5 9B Abliterated is a 9.0B model from lukey03 (Qwen family), while Qwen3 8B Base is a 8.2B model from Alibaba (Qwen family). Compare their VRAM requirements above to see which fits your GPU or Mac.