Spline The AI Add-On, Watermarks & Real Costs: 2026 Guide
Spline's Starter tier is $15 a seat, but AI is not in any plan. It is a $5 per-seat add-on, extra credits cost more, and the free tier watermarks every web export until you pay.
Typical annual cost
$144-$300
one Starter seat at $12/mo up to one Professional seat at $20/mo, billed yearly
Hidden fees
Yes
an AI add-on billed per seat, extra credits beyond it, a watermark on the free tier
Free tier
Watermarked
usable for basic 3D, but web exports carry a watermark until Starter
Cost transparency
Medium
scores 4 of 6 on our transparency checklist
What Spline really costs a seat
High· Verified July 15, 2026Spline is browser-based 3D design priced per seat, from a free tier to $25 a seat a month as of July 15, 2026. The free plan handles basic modelling but watermarks web exports. Starter is $15 a seat, or $12 yearly, and removes the watermark. Professional is $25, or $20 yearly, and adds code exports. Enterprise is quote-only. The line most people miss: Spline AI is in no plan. It is a separate $5 per-seat add-on for 2,000 credits, and extra credits cost more on top.
- Free (watermarked)$0
- Starter, monthly$15/seat
- Starter, annual$12/seat
- Professional, monthly$25/seat
- Spline AI add-on+$5/seat
- AI credits included2,000/seat
Spline Starter is $15 a seat, or $12 annually, right around the $14.50 median across the 18 design tools we track. The Professional tier most serious work needs is $25.
What the free Spline plan can actually ship
Spline's free tier is a real 3D editor, not a locked demo, and for learning the tool or a personal experiment it works well. You get unlimited viewers, access to Spline templates and enough to build basic scenes. For someone exploring 3D design, it is a genuine starting point.
The catch is publishing. Every web export carries a watermark on free, which makes it unsuitable for any public or client-facing work. Removing the watermark is the whole reason to move to Starter at $12 to $15 a seat. So the free tier is best read as a place to learn, not to ship, and the Spline alternatives page shows how other design tools handle their free exports.
Spline annual billing trims a fifth off each seat
The annual discount is a clean 20 percent on the paid tiers. Committing to a year drops Starter from $15 to $12 a seat a month, and Professional from $25 to $20. There is no discount on the free tier, since it costs nothing, and Enterprise is negotiated separately.
The one thing annual billing does not touch is the AI add-on. The $5 per-seat AI cost and any extra credits sit outside the plan, so the yearly discount applies to seats, not to generation. Take the annual rate once your seat count is settled, and budget AI as a separate monthly line that the discount will not reduce.
| Plan | Monthly | Annual, per seat | You save per year |
|---|---|---|---|
| Starter | $15 | $12 | $36 (20%) |
| Professional | $25 | $20 | $60 (20%) |
The Spline savings that are actually reliable
The dependable cut is annual billing, a flat 20 percent on Starter and Professional, needing no code. Beyond that, the savings are about not overpaying for the AI add-on and matching the tier to what you actually publish.
The AI decision is the big one. Because the $5 add-on is per seat, turning it on for a whole team when only a couple of people generate wastes money. Enable AI only on the seats that use it, and buy extra credits reactively rather than upsizing everyone. Where a real contract exists at Enterprise, the negotiation tactics below apply.
Annual billing, 20% off paid tiers
Starter falls to $12 and Professional to $20 a seat on yearly billing. It needs no code, but it applies only to seats, not to the separate $5 AI add-on or extra credits, which stay at full price.
Enable AI only on seats that use it
The $5 AI add-on is per seat, so switching it on for a whole team when two people generate is wasted. Add it to the seats that actually need it, and buy extra credits reactively rather than upsizing all.
Enterprise for volume and code exports
Enterprise is quote-based and adds SSO, team privacy and self-hosted exports. For a larger team needing those, a negotiated per-seat rate can price better than stacking Professional seats plus add-ons.
Reining in a Spline seat bill
For a lone designer, no Spline tier price moves, and the yearly toggle is the sole lever. The cost that actually runs away is the AI add-on, since it is per seat and metered, so the savings come from controlling AI rather than negotiating the plan.
A real negotiation opens only at Enterprise. Three moves cover most buyers.
Add AI seat by seat, not team-wide
- Target
- Teams considering Spline AI
- Argument
- The $5 AI add-on is per seat, so enabling it for everyone when only a few generate is money wasted. Turn it on for the seats that actually use AI, and leave the rest on plain Starter or Professional.
Buy extra credits reactively
- Target
- Heavy AI users
- Argument
- Extra credits beyond the 2,000 are priced at checkout, not a fixed rate. Rather than upsizing preemptively, buy them only when a project actually overshoots, so a quiet month does not carry an inflated AI cost.
Negotiate Enterprise for SSO and volume
- Target
- Larger teams needing SSO or exports
- Argument
- Enterprise adds SAML SSO, team privacy and code exports on a quoted per-seat rate. For a team that needs those, ask for a volume rate against a term, and compare it with stacking Professional seats plus add-ons.
Timing a Spline upgrade or commitment
For a self-serve seat, the timing question is the annual toggle. Commit a seat to yearly billing once the person is settled on Spline, since that is when the 20 percent is a clean saving. Keep a trial or short-term seat monthly until it proves it will stay.
At Enterprise, the usual sales calendar helps. A volume contract that lands in a quarter's closing days often wins more give, because the rep needs the number. Set the deal to close as the quarter shuts, and pull the AI credit terms into that same talk.
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Pro tip: Turn AI on the month a project actually needs generation, not preemptively. Because the add-on and extra credits are metered per seat, an idle AI seat is $5 a month plus any credits you bought and did not use.
Spline costs that bend, and those that stay put
The pattern follows the tier. Self-serve prices are fixed, only Enterprise flexes, and the AI add-on is a choice you control per seat regardless of the plan.
Usually negotiable
- Enterprise per-seat rate at volumeHIGH
- Which seats carry the AI add-onHIGH
- Monthly versus annual per seatHIGH
- AI credit terms on an Enterprise contractMEDIUM
- Term commitment for a lower rateMEDIUM
Rarely negotiable
- Self-serve prices ($15 Starter, $25 Professional)
- The $5 per-seat AI add-on rate
- The free tier watermarking web exports
- The 2,000 included AI credits per seat
Spline negotiation email generator
Spline's Starter and Professional prices are fixed, so this tool is aimed at Enterprise, where a quote and a rep exist. Enter your seat count, AI needs and whether you need SSO or code exports, and it produces a note that requests a volume rate. The rival rate it cites is one from our tracked prices, so it stands up on the call.
$25/seat, $20 annual, plus $5 AI
Hi Spline team, I lead tooling decisions at [Your company], and we are evaluating Spline for a team of 10-50 people, specifically the Professional seats option ($25/seat, $20 annual, plus $5 AI). As part of this evaluation we are also looking at Figma, which comes in at $16/user/mo billed annually, and Penpot at $7/user/mo. Can you help us understand the value difference at your current rates? We are ready to commit to an annual term. What is the best rate you can offer on annual billing, and can you cap the renewal price in the contract? We are aiming to sign before the end of this quarter, and budget sign-off is already in place. Could you share a proposal covering the rate for this scope, the renewal terms, and any programs we qualify for? Best regards, [Your name] [Your company]
Send it Tuesday to Thursday, and follow up once after 3 business days.
Before you send
- Separate the seats that need AI from those that do not, since the $5 add-on is where a team bill quietly grows.
- Reach a Spline sales contact rather than support, as Enterprise pricing and SSO are handled by a rep.
- Lead with seat volume and the SSO or export requirement, the features that justify Enterprise in the first place.
- Cite Figma or Penpot with the real rate as a design-tool comparison, not a loose claim that rivals cost less.
- Ask for the per-seat rate and the AI credit terms written into the contract, not settled on a call.
Spline pricing mistakes that add up per seat
Each of these comes from the AI add-on and the watermark, and each is avoidable before you roll Spline out.
Assuming AI is in the plan. It is a separate $5 per-seat add-on, so a team wanting it budgets that on top of the seat price.
Enabling AI team-wide. If only a few people generate, the $5 add-on on every seat is wasted on the rest.
Prepaying extra credits. They are priced at checkout, so buy them when a project overshoots, not in advance of need.
Trying to ship on free. Web exports are watermarked, so any public work needs Starter at $12 to $15.
Paying monthly out of habit. Annual billing is a flat 20 percent off the seat, once your roster is stable.
Ignoring Enterprise for SSO needs. If you need SSO or code exports, a quoted rate can beat stacking Professional seats plus add-ons.
Spline rivals worth weighing on price
Spline's per-seat plus AI-add-on model is worth comparing against design tools that price differently, especially if AI is central. These three are the closest design comparisons, with the prices beside them pulled from our current data. Naming one shows what Spline's AI and export model actually costs. The Spline alternatives page carries the wider list.
Figma
$16/seat billed annually, free Starter
$16/mo
The design standard, with AI credits included in the seat rather than a separate add-on. A useful anchor when Spline's $5 AI line starts to stack.
Framer
$10/mo annual, per site
$15/mo
Design-to-publish priced per site, not per seat. The comparison when you want interactive design that ships as a full website rather than a 3D scene.
Penpot
free tier, self-hostable
$7/mo
Open-source design that bills per user with a $175 cap and no metered AI. The budget anchor if 2D interface work covers most of your needs.
Script“Spline is $25 a seat plus $5 for AI credits that run out. Figma folds AI into the seat. What does Spline's 3D justify over that add-on stack for our work?”
Is Spline worth it for 3D design?
For browser-based 3D and interactive design, Spline is a strong, accessible tool, and Starter at $12 to $15 a seat is fair for what it does. If your work is genuinely 3D and you publish to the web, it earns its place, and the free plan is a genuine way to try it before spending.
The cost to watch is AI. Spline AI is a $5 per-seat add-on rather than an included feature, and extra credits cost more on top. A team that leans on generation should budget the AI line separately and control which seats carry it. The watermark also makes the free tier a learning space, not a publishing one.
So take Starter to remove the watermark, add AI only on the seats that use it, and switch to annual once your roster is set. At scale, negotiate Enterprise for SSO and volume. Every tier's inclusions sit on the Spline plan page; the aim of this page was to keep the AI add-on and the watermark from padding your bill.
Spline pricing and discount FAQ
How much does Spline cost per seat?
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Spline is priced per seat. The free tier costs nothing but watermarks web exports. Starter is $15 a seat a month, or $12 on annual billing, and removes the watermark. Professional is $25, or $20 annually, and adds code exports and unlimited scenes. Enterprise is a custom quote. The cost people miss is that Spline AI is in none of those plans: it is a separate $5 per-seat add-on for 2,000 credits, with extra credits priced on top. So a team wanting AI budgets the seat rate plus the add-on.
Is Spline AI included in the plan price?
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No, and this is the main hidden cost. Spline AI, which covers 3D generation, texture, style transfer and 2D image tools, is not bundled into any tier. It is a separate add-on at $5 a seat a month, giving 2,000 credits per editor. A four-person Professional team that wants AI pays $100 a month in seats plus $20 for the add-on. Heavy users also exceed the 2,000 credits and buy more at a checkout rate. So if AI matters to your workflow, treat the $5 add-on as a required line, not an optional extra.
Does the free Spline plan watermark exports?
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Yes. Every web export on the free tier carries a watermark. It is removed only when you move to Starter at $15 a seat a month, or $12 on annual billing. That makes the free plan fine for learning the tool or building personal experiments, but unsuitable for any public or client-facing work. In practice, anyone shipping 3D on a real website is pushed off the free tier immediately. So Starter is the true entry price for professional use, not the $0 the free plan suggests.
What do Spline's extra AI credits cost?
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The $5 per-seat AI add-on includes 2,000 credits per editor a month. Heavy generation exceeds that, and additional credits are purchasable beyond the allotment at a rate Spline sets at checkout rather than publishing on the plan. That means the $5 add-on is a floor rather than a ceiling: a busy month of AI work can push the real AI cost well past it. If your workflow leans heavily on generation, budget for top-up credits and consider whether the volume justifies discussing terms at the Enterprise level.
Is Spline cheaper paid yearly?
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Yes, a flat 20 percent on the paid tiers. Annual billing drops Starter from $15 to $12 a seat a month, and Professional from $25 to $20. Over a year that is $36 saved on Starter and $60 on Professional per seat. The catch is that the discount applies only to the seat, not to the separate $5 AI add-on or any extra credits, which stay at full price. Take the annual rate once your seat count is stable, and keep budgeting AI as its own monthly line that the discount will not reduce.
Which Spline plan do most teams need?
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Most serious work lands on Professional at $25 a seat, or $20 annually, because it adds code exports, unlimited scenes per file, and mobile exports that Starter lacks. Starter at $15 is enough if you only need to remove the free watermark and do straightforward web exports. The free tier suits learning but not publishing. On top of whichever tier you choose, add the $5 AI add-on only for the seats that actually generate. So a typical team bill is Professional seats plus the AI add-on on a subset of them.
Is Spline worth it compared to Figma?
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They serve different needs. Spline is built for 3D and interactive design, which Figma does not do natively, so if your work is genuinely three-dimensional, Spline earns its place. On cost, Figma folds AI credits into the seat, while Spline charges a separate $5 add-on, so a team leaning on AI may find Spline's total climbs faster. If you mostly do 2D interface design, Figma is the standard and likely cheaper once AI is counted. If you need real 3D, Spline is the specialized tool and the add-on is the price of it.
How do I keep Spline costs down?
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Start with the AI add-on, since it is the line that grows. Enable the $5 per-seat AI only on the seats that actually generate, rather than team-wide, and buy extra credits reactively instead of prepaying. Take Starter rather than Professional if all you need is to remove the free watermark, and move up only when code exports or unlimited scenes matter. Switch to annual billing for a flat 20 percent off seats once your roster is stable. At larger scale, negotiate an Enterprise rate for SSO and volume against your stacked seats.
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Sources & verification
| Source | What was checked | Last checked |
|---|---|---|
| Spline official pricing | Verified plan prices, renewal rates and credit allowances | July 15, 2026 |
| Spline website | Official vendor website | July 15, 2026 |
| Spline pricing on ComparEdge | Current prices for every plan, with the cost calculator | July 15, 2026 |
Every fact on this Spline pricing page is tied to a named source and a verification date. Freshness-sensitive figures trace to the sources above; verify against the vendor before relying on them.