Is Qwen3.6-34B-80L-Fable-5-Heretic or Qwen3-Coder-30B-A3B-Instruct smaller?

Qwen3-Coder-30B-A3B-Instruct is smaller at Q4_K_M: 17.28 GiB against 19.10 GiB.

Which uses less memory at long context?

Qwen3.6-34B-80L-Fable-5-Heretic — its KV cache at 32K context is 1.2x smaller, because of how its attention layers cache.

Model comparison

Qwen3.6-34B-80L-Fable-5-Heretic vs Qwen3-Coder-30B-A3B-Instruct

At Q4_K_M, Qwen3-Coder-30B-A3B-Instruct is the smaller download — 18,556,689,568 bytes against 20,505,296,736. At long context the gap widens: Qwen3.6-34B-80L-Fable-5-Heretic's KV cache at 32K is 1.2× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	Qwen3.6-34B-80L-Fable-5-Heretic	Qwen3-Coder-30B-A3B-Instruct
Parameters	33.4B	30.5B
Architecture	qwen35	qwen3moe
Layers	80	48
Native context	262,144	262,144
Mixture of experts	no	yes, 128 experts
Quantizations published	25	46
Smallest quantization	12.27 GiB	7.46 GiB
Q4_K_M	19.10 GiB	17.28 GiB
Licence	—	apache-2.0

KV cache by context

the term that decides long-context viability

Context	Qwen3.6-34B-80L-Fable-5-Heretic	Qwen3-Coder-30B-A3B-Instruct	Ratio
4,096	0.31 GiB	0.38 GiB	1.20×
8,192	0.63 GiB	0.75 GiB	1.20×
16,384	1.25 GiB	1.50 GiB	1.20×
32,768	2.50 GiB	3.00 GiB	1.20×
65,536	5.00 GiB	6.00 GiB	1.20×
131,072	10.00 GiB	12.00 GiB	1.20×