Model comparison
Qwen3.5-2B vs LFM2.5-VL-1.6B
At Q4_K_M, LFM2.5-VL-1.6B is the smaller download — 730,895,968 bytes against 1,270,808,032.
From the file· summed bytes, KV per layer
Side by side
| Qwen3.5-2B | LFM2.5-VL-1.6B | |
|---|---|---|
| Parameters | 2.3B | 1.6B |
| Architecture | qwen35 | lfm2 |
| Layers | 24 | 16 |
| Native context | 262,144 | 128,000 |
| Mixture of experts | no | no |
| Quantizations published | 42 | 23 |
| Smallest quantization | 0.72 GiB | 0.45 GiB |
| Q4_K_M | 1.18 GiB | 0.68 GiB |
| Licence | apache-2.0 | other |
KV cache by context
the term that decides long-context viability
| Context | Qwen3.5-2B | LFM2.5-VL-1.6B | Ratio |
|---|---|---|---|
| 4,096 | 0.05 GiB | 0.05 GiB | 1.00× |
| 8,192 | 0.09 GiB | 0.09 GiB | 1.00× |
| 16,384 | 0.19 GiB | 0.19 GiB | 1.00× |
| 32,768 | 0.38 GiB | 0.38 GiB | 1.00× |
| 65,536 | 0.75 GiB | 0.75 GiB | 1.00× |
| 131,072 | 1.50 GiB | 1.50 GiB | 1.00× |