Qwen3.6 35B (3B active)
on M5 Max 128GB · oMLX · 1,024 ctx
Summary
User benchmarks Qwen3.6-35B-A3B at 154 t/s decode on a 1k prompt with oMLX's native engine on an M5 Max 128GB, falling to 55 t/s at 262k context.
Setup is oMLX 0.7.1rc1 with the oQ5e-mtp quant, Lightning MTP on, TurboQuant KV off, and a 128-token greedy generation at each context step. Splash 1.3.2 with int8 KV decoded 147 t/s at 1k and 78 t/s at 262k, and used 30.2 GiB against native's 33.5 GiB prefill peak and 37.4 GiB decode.
TurboQuant 5- and 6-bit decoded at 27-29 t/s at 262k, about half of off. The user also ran Qwen3.8-27B, where Splash int8 was faster at almost every context (69 vs 48 t/s at 1k) and native TurboQuant cost 7-25% decode speed with MTP on. No setting showed a detectable accuracy loss of more than about 2 points.