GPU VRAM only for small models with llama.cpp: is it possible?

I'm still in my learning process and so far I've been able to make satisfying use of my setup (4070 with 12GB VRAM + 32GB RAM and iGPU for my GUI). I've been able to run both Gemma4 26B and Qwen 3.6 35B MoEs up to high quants with large context and have about 40 t/s with both. However, I'd like to t