gemma-4-E4B-Agentic-Opus-Reasoning-GeminiCLI-mlx-4bit
deadbydawn101/gemma-4-E4B-Agentic-Opus-Reasoning-GeminiCLI-mlx-4bitgemma-4-E4B-Agentic-Opus-Reasoning-GeminiCLI-mlx-4bit at Q4_K_M is exactly 5,335,285,280 bytes (4.97 GiB / 5.34 GB) — an effective 5.677 bits per weight, not the nominal 4. Its KV cache at 32K is 0.51 GiB, not the 2.63 GiB a flat formula predicts.
Shipped quantizations
| Quant | Size● | Exact bytes● | Effective bpw● | Tensors● | Publisher |
|---|---|---|---|---|---|
| Q4_K_M | 4.97 GiB | 5,335,285,280 | 5.677 | — | deadbydawn101 |
| Q5_K_M | 5.37 GiB | 5,762,907,680 | 6.132 | — | deadbydawn101 |
| Q8_0 | 7.48 GiB | 8,031,235,616 | 8.546 | — | deadbydawn101 |
| F16 | 14.02 GiB | 15,053,090,336 | 16.018 | — | deadbydawn101 |
KV cache by context
| Context | KV cache (f16)● | Flat formula | Overstated by | Full / windowed / recurrent |
|---|---|---|---|---|
| 4,096 | 0.12 GiB | 0.33 GiB | 2.67× | 7 / 35 / 0 |
| 8,192 | 0.18 GiB | 0.66 GiB | 3.69× | 7 / 35 / 0 |
| 16,384 | 0.29 GiB | 1.31 GiB | 4.57× | 7 / 35 / 0 |
| 32,768 | 0.51 GiB | 2.63 GiB | 5.19× | 7 / 35 / 0 |
| 65,536 | 0.94 GiB | 5.25 GiB | 5.57× | 7 / 35 / 0 |
| 131,072 | 1.82 GiB | 10.50 GiB | 5.77× | 7 / 35 / 0 |
35 of 42 layers cache only a 512-token window rather than the full context, on a period of . Figures assume the default configuration; --swa-full disables the saving entirely.
Compare with
Will it run on your card?
Why other calculators give a different number
A parameters × bits ÷ 8 estimate puts Q4_K_M at roughly 3.94 GiB. The real file is 4.97 GiB, because a quantization is a mixture and some tensors are always kept at higher precision. The larger discrepancy is the cache: a flat formula gives 2.63 GiB at 32K context where the real figure is 0.51 GiB, because most of this model's layers cache a fixed window rather than the whole context.
Architecture
Questions people ask
- How much VRAM does gemma-4-E4B-Agentic-Opus-Reasoning-GeminiCLI-mlx-4bit need?
- Q4_K_M is exactly 5,335,285,280 bytes (4.97 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
- How large is gemma-4-E4B-Agentic-Opus-Reasoning-GeminiCLI-mlx-4bit's KV cache?
- 0.51 GiB at 32K context with an f16 cache, computed per layer. Quantizing the cache to q8_0 roughly halves it, which is often the difference between a context length fitting and not.
- Which quantization of gemma-4-E4B-Agentic-Opus-Reasoning-GeminiCLI-mlx-4bit should I use?
- Q4_K_M is the usual default. Pick the largest quantization that fits your card at the context you actually need — the table above gives exact sizes for every one published.