Atlas and Marble API pricing explained: an independent breakdown of credits and per-world cost

Two ways to pay on this independent site (not affiliated with World Labs): start with 280 free credits, or buy 8,000 credits for $19.90 once. No subscription. Above: the two options. Below: what the credits buy, then how World Labs prices the underlying API, which Atlas does not yet have a price for. Figures are as of September 13, 2026 and link to their sources.

How pricing on this site works

Generation on this site runs on the Marble World API, and one credit here is one World Labs credit: each world costs exactly the usage events World Labs bills for it. What the price covers is the tool around the API — uploads, the queue, the in-browser viewer — rather than a markup per world.

Free: 280 credits when you sign up. It is a single allowance, not a monthly one, sized to cover one draft world whatever the input: 150 credits from a panorama, 230 from text or one photo, 250 from several photos or a video.

Credit pack: 8,000 credits for $19.90, one-time. No subscription and no expiry. What it buys at draft quality and at Marble 1.1 (the “standard” tier in the tool):

Input	Draft world (per pack)	Standard world (per pack)
Text or one photo	230 credits (34)	1,580 credits (5)
360° panorama	150 credits (53)	1,500 credits (5)
Several photos or a video	250 credits (32)	1,600 credits (5)

The HQ tier runs Marble 1.1 Plus, which World Labs bills at 1,500 to 3,000 credits plus the panorama event depending on how far it expands the world, so a pack covers two to five HQ worlds.

You pay what World Labs charges. Starting a generation holds the estimate from your balance, the upper bound in the case of HQ. When the world finishes, the hold is replaced by the cost World Labs actually billed, and a failed generation returns the whole hold.

What the tool delivers today is the world in the in-browser viewer and as an .spz download. PLY and GLB mesh exports are not in the tool yet.

When buying direct is cheaper. The pack works out to $2.49 per 1,000 credits against $0.80 from World Labs, so a draft world from text costs about $0.57 here and $0.18 direct, with a $5 minimum top-up. If you are comfortable writing the upload, polling and export code yourself, buy credits from World Labs; the Marble World API guide walks through it. This site is for people who would rather type a prompt or drop in photos and get a world back.

World Labs credit pricing (the upstream rate)

The World API uses prepaid credits (World Labs docs):

• $1.00 buys 1,250 credits, so one credit is $0.0008.
• The minimum purchase is $5.00 for 6,250 credits.
• API credits do not expire and can auto-refill when the balance drops.
• API credits are separate from the Marble web app’s credits; buying one does not top up the other.
• Billing is per usage event, and the cost of an event depends on the compute it consumes.

Per-world cost

The headline number is the price of one generated world (Radiance Fields):

Model	Credits per world	USD
Draft world (marble-1.0-draft)	150	$0.12
Marble 1.1	1,500	$1.20
Marble 1.1 Plus, base	1,500	$1.20
Marble 1.1 Plus, each extra dynamic cube	300	$0.24

A Marble 1.1 Plus world expanded by the maximum five cubes in one pass therefore costs 1,500 + 5 × 300 = 3,000 credits, or $2.40.

Those are the world generation events only. A request is billed as the sum of its usage events, and unless the input is already a 360° panorama, a panorama generation event comes first: 80 credits for text or a single non-panorama image, 100 for multi-image or video (World Labs docs). So a text prompt at Marble 1.1 actually bills 1,580 credits, about $1.26, rather than a flat 1,500 — and feeding a panorama you already have skips that charge entirely. World Labs publishes a measured cost distribution for 1.1 Plus: median $1.28, mean $1.71, 95th percentile $2.48, as of June 25, 2026.

What is free

PLY Gaussian splat export through the API is free, and every generation already returns SPZ splats at three resolutions plus a low-poly collider mesh at no extra charge (World Labs docs). The panorama image comes back too, though not always at the moment the world finishes: in our own test on September 13, 2026 a draft world returned imagery.pano_url empty, and the same world had it filled when we checked again on September 27. Because .ply is the lossless source format, you can convert it to compressed .spz yourself at no cost and view it in the online splat viewer. The one paid export is the high-quality mesh at 3,500 credits, about $2.80, billed once per world however many times you fetch it. The API does not export video at all — that is a recording feature of the Marble web app.

Atlas pricing: not disclosed

Atlas is in early access for select partners and World Labs has published no price, paper or general-availability date (Implicator). Two things are reasonable to expect, neither confirmed:

1. Video will be priced differently from worlds. A minute of 1440p video is orders of magnitude more compute than a static world. Competing video APIs charge per second of output, for example $0.10 per second for Sora 2 at 720p ahead of its scheduled September 24, 2026 shutdown (eesel), and Atlas video is likely to follow a per-second or per-frame model.
2. Reconstruction may stay per-world. Turning a few photos into a splat scene is closer to what Marble does today, so per-world pricing in the same credit system is plausible.

We will update this page within 48 hours of an announcement. For the model itself, see what the Atlas world model is; for how the two models differ, see Atlas vs Marble.

Worked examples

A solo developer prototyping. Ten Marble 1.1 worlds cost 15,000 credits, or $12. The minimum $5 top-up covers four worlds with 250 credits left over. Free PLY export means no additional cost to get assets into Unity or Unreal.

A small studio blocking out a level. One hundred worlds a month is 150,000 credits, or $120. If a third of them use two extra cubes on 1.1 Plus, add roughly 33 × 600 = 19,800 credits, about $16, for a total near $136.

An agency producing client mood boards. 500 worlds is 750,000 credits, or $600. At this volume the per-world price is the whole story; we found no published volume discount as of September 3, 2026.

A robotics team building simulation twins. Costs are dominated by iteration: regenerate the same space under different conditions. Fifty variations of ten spaces is 500 worlds, again about $600 on Marble. Atlas is the intended tool for this workflow but has no price yet; see the real-to-sim guide.

How credits are consumed

Every generation is a usage event, and World Labs bills events according to the compute they consume (World Labs docs). For Marble 1.1 that resolves to a flat 1,500 credits per world, which makes budgeting simple: multiply worlds by 1,500 and divide by 1,250 to get dollars.

Three details trip people up:

• Failed generations. Billing is per usage event, so check the credits endpoint after a failure rather than assuming the world was charged. Build a refund path into your own accounting if you resell generation.
• Web app versus API. The Marble web app has its own credit balance, separate from API credits; we have not verified its plan structure. Buying API credits does not add to it, and vice versa. Teams that use both need two budgets.
• Auto-refill. Enabling auto-refill prevents a production job from stopping at zero balance, but it also means a runaway loop can spend money. Cap retries and monitor the balance.

Reducing cost per asset

• Draft first, then commit. A draft world is 150 credits against 1,500 for Marble 1.1 — ten times cheaper. Iterate on composition at draft quality and spend the full price only on the take you keep.
• Generate at 1.1, not Plus, unless you need the space. Above the base price there are exactly two documented cost levers: extra cubes at 300 credits each, and the HQ mesh export at 3,500. If a single bounded scene is enough, stay on 1.1 and skip the mesh.
• Feed a panorama when you have one. An input that is already a 360° panorama skips the panorama generation event and saves 80 to 100 credits per world.
• Iterate on inputs before generating. Better reference photos and clearer prompts cut the number of regenerations, which is where budgets actually go.
• Export PLY, convert to SPZ yourself. The lossless export is free; the compressed format for the web takes seconds to produce locally and costs nothing.
• Reuse worlds. One world can yield many renders, videos and camera paths. Treat the world as the unit of cost and the renders as free.

Why credits rather than dollars

Credit systems let a vendor reprice individual operations without changing the headline exchange rate, and let customers prepay in round amounts. For budgeting, convert every line item to dollars at $0.0008 per credit and track the per-world figure; if World Labs changes the credits per world, that is the number that moves. This page is updated within 48 hours of any change, with the previous figure noted in the changelog.

Summary table

Question	Answer (as of September 13, 2026)
Price per credit	$0.0008 ($1 = 1,250 credits)
Minimum purchase	$5 (6,250 credits)
Draft world	150 credits ≈ $0.12
Marble 1.1 world	1,500 credits ≈ $1.20
Marble 1.1 Plus extra cube	300 credits ≈ $0.24
Panorama generation event	0 if input is already a panorama, else 80–100
PLY and SPZ export	Free
HQ mesh export	3,500 credits ≈ $2.80, once per world
Video export	Not offered by the API
Credit expiry	None for API credits
Atlas	Price not disclosed, early access only