Fly.io Sprites alternative
Maritime is cheaper at full use ($0.022 an hour for a 2 vCPU, 4 GB sandbox against $0.1645, and $1 a month for a 2 GB agent box) and adds desktops, Windows and Android. Sprites bill only actual use and have cheap cold storage.
Maritime gives every AI agent its own computer: agent boxes that stay online, sandboxes for code, Linux and Windows desktops it clicks, and Android phones.
Fly.io Sprites pricing vs Maritime, same sizes.
List prices for one machine awake for one full hour. Disk and egress are left out.
| Provider | 1 vCPU, 2 GB per hour | 2 vCPU, 4 GB per hour | Notes |
|---|---|---|---|
| Maritime sandbox | $0.011 | $0.022 | Any size up to 16 vCPU and 64 GB, priced per vCPU and GB. Ends with its disk when idle, or pause it and pay $0.08 per GB-month of disk. |
| Maritime agent box | $0.00137 | $0.00274 | $1 a month per 2 GB of memory, 1 vCPU, awake or asleep, with unlimited awake hours and 5 GB of disk. The 4 GB box ($2 a month) is shown in the 2 vCPU, 4 GB column by memory. |
| Fly.io Sprites | $0.08225 at full use | $0.1645 at full use | $0.0385 per CPU-hour and $0.021875 per GB-hour of actual use, not allocation. Hot storage $0.50 per GB-month, cold $0.02. |
Fly.io Sprites prices from fly.io/sprites, checked October 26, 2026. Maritime prices from the pricing page.
Fly.io Sprites plans: $30 of trial credit for new organizations. The Sprites page lists plans (Hero $100 a month); the pricing page says there are no plans, so plans are unconfirmed.
What Maritime has that Fly.io Sprites does not.
Fly.io Sprites are persistent Linux micro-VMs for agents, billed on actual use. Maritime gives every agent its own computer: sandboxes, persistent agent boxes, Linux and Windows desktops, and Android phones, on one API.
Windows desktops
Maritime: $0.18 an hour while awake, licence included, with screenshot, click, type, files and human takeover. Requires Growth, Scale or Dedicated once the plan has been paid; not Starter or the free trial.
Fly.io Sprites: Linux only. No desktop.
Android phones
Maritime: $0.15 an hour while awake. AOSP Android 15 with tap, swipe, ui_tree, install_app and an adb tunnel.
Fly.io Sprites: No Android machine.
Persistent agent boxes at a flat price
Maritime: $1 a month per 2 GB, awake or asleep, with unlimited awake hours and 5 GB of disk included.
Fly.io Sprites: Disk survives sleep and checkpoints take about a second. Billed on actual use, up to $0.08225 an hour for 1 vCPU and 2 GB, plus hot storage at $0.50 per GB-month.
Per-end-user spend caps
Maritime: End users are records keyed by your own id, with one agent each, per-user spend caps, short-lived eu_ tokens for their browser, and a usage report for rebilling.
Fly.io Sprites: Not stated.
Private network
Maritime: Reach a system inside a customer's office through a small connector on their side, no VPN, on every plan including the free trial.
Fly.io Sprites: Not stated.
Where Fly.io Sprites is better.
Pick Fly.io Sprites if one of these matters more to you than the list above.
- Billing on actual use, not allocation, so a lightly used Sprite costs less than its full-use price.
- Cheap cold storage: $0.02 per GB-month. Maritime disk past the included amount is $0.08 per GB-month.
- Checkpoints in about a second.
- $30 of trial credit for new organizations. Maritime's trial needs a card and caps usage at $20 for 7 days.
Maritime and Fly.io Sprites, briefly.
- How much do Fly.io Sprites cost?
- Sprites bill $0.0385 per CPU-hour and $0.021875 per GB-hour of actual use: at full use, $0.08225 an hour for 1 vCPU and 2 GB, and $0.1645 for 2 vCPU and 4 GB. Hot storage is $0.50 per GB-month and cold $0.02 (fly.io/sprites, checked 2026-10-26). New organizations get $30 of trial credit.
- Fly.io Sprites vs Maritime: which is cheaper?
- At full use, yes. A Maritime sandbox with 2 vCPU and 4 GB is $0.022 an hour against $0.1645 for a Sprite (fly.io/sprites, checked 2026-10-26), and a 1 vCPU, 2 GB Maritime agent box is $1 a month, awake or asleep, against $0.08225 an hour. A Sprite that is mostly idle bills less than its full-use price.
- Do Sprites and Maritime agent boxes both keep their disk?
- Yes. A Sprite's disk survives sleep. A Maritime agent box keeps /data until you delete it, at a flat $1 a month per 2 GB with 5 GB of disk included.
- Where are Fly.io Sprites the better choice?
- Sprites bill only actual use, offer cold storage at $0.02 per GB-month, checkpoint in about a second, and give new organizations $30 of trial credit.
These sources were read on October 26, 2026. Later price checks are dated where stated. Prices change; check the source before you decide. The full comparison of 25 providers, with every source, is at maritime.sh/compare.md.
Start with a free trial.One API key, one bill.
7 days, a card is required, usage capped at $20. Cancel within the trial and nothing is charged. Starter $20, Growth $100, Scale $500 and Dedicated $5,000 a month. Each fee comes back as the same amount of usage credit. Every plan pays the same rates.
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