Model comparison
gpt-oss-20b-BF16 vs Qwen3-Coder-30B-A3B-Instruct
At Q4_K_M, gpt-oss-20b-BF16 is the smaller download — 15,805,134,880 bytes against 18,556,689,568. At long context the gap widens: gpt-oss-20b-BF16's KV cache at 32K is 3.9× smaller, which usually matters more than the difference in weights.
From the file· summed bytes, KV per layer
Side by side
| gpt-oss-20b-BF16 | Qwen3-Coder-30B-A3B-Instruct | |
|---|---|---|
| Parameters | 20.9B | 30.5B |
| Architecture | gpt-oss | qwen3moe |
| Layers | 24 | 48 |
| Native context | 131,072 | 262,144 |
| Mixture of experts | yes, 32 experts | yes, 128 experts |
| Quantizations published | 8 | 46 |
| Smallest quantization | 12.03 GiB | 7.46 GiB |
| Q4_K_M | 14.72 GiB | 17.28 GiB |
| Licence | apache-2.0 | apache-2.0 |
KV cache by context
the term that decides long-context viability
| Context | gpt-oss-20b-BF16 | Qwen3-Coder-30B-A3B-Instruct | Ratio |
|---|---|---|---|
| 4,096 | 0.11 GiB | 0.38 GiB | 3.37× |
| 8,192 | 0.21 GiB | 0.75 GiB | 3.66× |
| 16,384 | 0.39 GiB | 1.50 GiB | 3.82× |
| 32,768 | 0.77 GiB | 3.00 GiB | 3.91× |
| 65,536 | 1.52 GiB | 6.00 GiB | 3.95× |
| 131,072 | 3.02 GiB | 12.00 GiB | 3.98× |