Now booking: pick your dates, pay securely with Stripe, and get access the day your rental starts.

512GB of unified memory. A whole M3 Ultra Mac Studio, all yours.

Rent a dedicated, maxed-out M3 Ultra by the 3, 7, or 14-day stretch. Real hardware, not shared and not virtualized, with private access over Tailscale. Built for local LLMs, big Xcode builds, renders, and ML.

Check availability & bookSee pricing

Which models fit in 512GB? See the list →

Apple's top M3 Ultra configuration

32-core CPU24 performance + 8 efficiency cores
80-core GPUHardware-accelerated ray tracing, Metal 4
512GB unified memory819GB/s memory bandwidth, shared by CPU and GPU
2TB SSDSeveral hundred GB of free workspace
32-core Neural EngineApple M3 Ultra
Dedicated internet~200 Mbps down / ~150 Mbps up, business line

Specs per Apple's published Mac Studio (2025) tech specs. Both Studios verified by the owner: M3 Ultra, 512GB unified memory, 80-core GPU, 2TB internal SSD.

The machines

Studio A

M3 Ultra · 32-core CPU · 80-core GPU · 512GB · 2TB SSD

The whole machine is yours for your term: every core, all 512GB of memory, no neighbors. Load very large open-weight models entirely in memory for local inference or fine-tuning, run heavy Xcode builds, or chew through video and 3D renders. You SSH in as your own macOS user over a private Tailscale connection, with no public ports and no VPN to configure.

Studio B

M3 Ultra · 32-core CPU · 80-core GPU · 512GB · 2TB SSD

An identical twin to Studio A, so you can book whichever one is free, or both for parallel jobs. Same dedicated, bare-metal M3 Ultra with 512GB of unified memory, ready for ML workloads, CI-scale builds, and long-running renders, with private Tailscale access to your machine only.

How it compares

Here: 512GBM3 Ultra, 32-core CPU, 80-core GPU. One renter per machine. 3 to 14-day terms with a flat price.
AI KIZAI: 512GB, $299 / $499 / $799Rents one 512GB M3 Ultra Mac Studio for 3, 7 or 14 days. Our prices: $299 / $489 / $779, with two machines to choose from.
AWS EC2 Mac: up to 256GBLargest instance is mac-m3ultra.metal (28-core CPU, 60-core GPU, 256GB), billed per second on a dedicated host with a 24-hour minimum.
MacStadium: up to 128GBStandard Mac Studio plans list M2 Ultra with 64GB or 128GB, on monthly or annual terms.

Competitor details from AI KIZAI's 512GB specs page, AWS's EC2 Mac instance page and MacStadium's pricing and docs pages, checked October 2026. Custom configurations may differ.

Pricing

3 days
$299
about $100 / day
7 days · best value
$489
about $70 / day
14 days · save 44%
$779
about $56 / day

Per machine. Includes exclusive use, your own macOS user, SSH plus agreed web ports over Tailscale, and a fresh account per booking, sealed with all files removed at term end. Pay securely through Stripe Checkout. Your booking is confirmed the moment payment clears.

How it works

  1. Pick a Studio and your dates, paste your SSH public key, and pay through Stripe Checkout.
  2. Your booking is confirmed as soon as payment clears. Your SSH username appears on the confirmation page.
  3. You get a private Tailscale share for your Studio only. The Studio can't reach into your network.
  4. SSH in as your own macOS user and get to work. Access ends automatically at term end: your account is sealed and all your files are removed. The next renter gets a brand-new account.

FAQ

Can I run large LLMs? Yes. That's the main reason to rent this. With 512GB of unified memory, models that won't fit on a typical GPU can stay fully in memory.

Is it shared or virtualized? No. You get the physical machine, one renter at a time.

Where is it hosted, and what about uptime? The Studios are hosted in New England on a dedicated business internet line, with battery backup power (UPS). Uptime is best effort and there is no SLA yet. If an outage on our side costs you meaningful rental time, we'll make it right with extra time or a pro-rated refund.