Outlier Lite on MacBook Pro M1 Pro: fits comfortably. Minimum unified memory required: 12 GB. Disk size: 5.04 GB. Default context window: 8K tokens on Free, 32K on Pro. On MacBook Pro M1 Pro the Outlier Lite bandwidth-scaled estimate is ~13.3 tok/s [estimated from family-bandwidth ratio]; derivation: 53.4 tok/s on M1 Ultra × (200 / 800) bus ratio for the Apple M1 Pro. Treat as a first-order projection, the Outlier Lite number on this 2021 machine has not been formally measured. The only real check of this method, Nano on a 16 GB M4 Air, ran about 3× faster than the 10.8 tok/s it projects, so read the figure as conservative.
Outlier Pro: $49 once · Black Friday price, all of November: $24.50 once, until 30 November
Free to start (Nano and Lite). macOS 15+, Apple silicon. Refund window: 30 days, no questions asked.
The pairing under examination is Outlier Lite (5.04 GB MLX 4-bit, Qwen3.5-9B base, 8K context on Free (32K on Pro), 12 GB unified memory minimum) on a MacBook Pro M1 Pro (Apple M1 Pro, 8-10 CPU cores, 14-16 GPU cores, 16 or 32 GB unified memory, 200 GB/s, 2021). Outlier loads this tier as one mlx_lm process inside the bundled FastAPI sidecar. Apple Silicon decode on dense 4-bit weights is bandwidth-bound, so the figure on this exact MacBook Pro M1 Pro scales roughly as the ratio 200 / 800 = 0.25× of the published M1 Ultra number.
The MacBook Pro M1 Pro is a laptop with active cooling: it holds clocks through a sustained back-and-forth session far longer than a fanless Air, and it will be audible while it does. Its thermal envelope is still smaller than a desktop of the same chip, so a 5.04 GB model decoding for a long stretch sits between the two: closer to the figure above than an Air, not quite a Mac Studio. Plugged in matters here as much as it does on any laptop.
The tier catalog lists a peak generation footprint of about 5.5 GB for Outlier Lite, for a short chat; a long agent session needs more. The rule of thumb is to leave roughly 4 GB for the OS and one open browser tab, so across the MacBook Pro M1 Pro memory options that leaves 16 GB → 6.5 GB free; 32 GB → 22.5 GB free. On MacBook Pro M1 Pro the Outlier Lite bandwidth-scaled estimate is ~13.3 tok/s [estimated from family-bandwidth ratio]; derivation: 53.4 tok/s on M1 Ultra × (200 / 800) bus ratio for the Apple M1 Pro. Treat as a first-order projection, the Outlier Lite number on this 2021 machine has not been formally measured. The only real check of this method, Nano on a 16 GB M4 Air, ran about 3× faster than the 10.8 tok/s it projects, so read the figure as conservative.
The 2021 MacBook Pro M1 Pro ships with 16 or 32 GB of unified memory. Headroom over the 12 GB Outlier Lite minimum is 4 GB on the 16 GB base model. Step-by-step install instructions live on the install guide; the part that varies for this Apple M1 Pro machine is that the 5.04 GB pull from Outlier-Ai/Outlier-Lite-9B-MLX-4bit over HTTPS lands in ~/Library/Application Support/Outlier/models/lite/ and download time is bandwidth-limited by the network, not by the 8-10-core Apple M1 Pro CPU.
The Outlier Lite tier runs at 8K context on Free; on Pro it defaults to 32K and caps at 128K. KV cache scales linearly with context length on dense models, so longer contexts trade headroom for capacity. On a 16 GB MacBook Pro M1 Pro, the default context is the safe starting point.
5.04 GB on disk against the 16 GB MacBook Pro M1 Pro (the smallest configuration that meets the 12 GB minimum) means the weights alone take about 32% of its memory.
For lighter-weight work on this Apple M1 Pro, the Nano tier is the next step down and runs visibly faster. For heavier work, the Quick or Core tier is the next step up; check that the memory configuration you have (16 or 32 GB on this Mac) can fit its weights before installing. The unified-memory explainer works the bandwidth math out, and the bandwidth ratio for MacBook Pro M1 Pro is 0.25× M1 Ultra reference.
Download Outlier for MacOn your phone?
Free · M1 or newer · macOS 15+ (free update) · 276 MB. Intel Macs are not supported.
Outlier Pro: $49 once · Black Friday price, all of November: $24.50 once, until 30 November
Refund window: 30 days, no questions asked.
Open weights ship constantly and most are not worth your disk. When one beats a tier Outlier already has, on hardware you already own, we say so and what it replaces. That is the only reason we email.
Your address and which site you sent it from. No IP, no user agent, no referer. Nothing is sent until you press the button. Privacy.
Outlier runs entirely on your Mac. No prompts leave the device. macOS 15+ on Apple Silicon (arm64). Apache 2.0 model weights. Back to home.
Made by Kerr & Company