# Splash Engine - the fastest local Qwen3.8 on Apple Silicon > Source: > Published: 2026-09-18 00:00:00+00:00 # Splash Engine - the fastest local Qwen3.8 on Apple Silicon ## What is Splash Engine? Splash is an open-source inference engine from [Inco AI](https://inco.ai/) for running language models locally on Apple silicon. It is optimized specifically for Qwen3.6-35B-A3B and Qwen3.8-27B. The engine provides GPU kernels and a memory plan tailored to each supported model. Each model ships with a dedicated DFlash 2 draft model for speculative decoding, which improves generation speed. In Inco's tests on a 48 GB M5 Pro, Splash delivered roughly twice the decode speed of the next-fastest engine they measured on Qwen3.8-27B: 74 tokens per second on short prompts and 54 at 32K context. With four concurrent requests on short prompts, its combined throughput reached 170 tokens per second—3.9× the next-fastest engine in their comparison. Read more about Splash in Inco's [blog post](https://inco.ai/blog/splash). ## Use it in LM Studio Bionic Download and install [LM Studio Bionic](https://lmstudio.ai) 1.1.5 or newer, then open the app. Splash requires an M3-or-newer Mac running macOS 26.4 or later with at least 36 GB of unified memory; Inco recommends 48 GB or more. Navigate to **Settings > Runtime**. Under **Experimental backends**, click **Download** next to **Splash (Metal)** to install the engine. Download the Splash engine from Settings > Runtime. Then go to **Settings > Explore**, paste one of the following Hugging Face links into the search bar, select the model, and click **Download**: Once the download finishes, start a new session and select the model from the local model picker.