Apple M3 Max meets the minimum VRAM requirement for Q4 inference of stepfun-ai/Step-3.5-Flash. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
Apple M3 Max can run stepfun-ai/Step-3.5-Flash with Q4 quantization. At approximately 7 tokens/second, you can expect Low speed - consider quantization or stronger GPU.
You have 16GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 112GB | 128GB | 6.55 tok/s | ✅ Fits comfortably |
| Q8 | 223GB | 128GB | 4.65 tok/s | ❌ Not recommended |
| FP16 | 446GB | 128GB | 2.25 tok/s | ❌ Not recommended |