Spline AI

MCP-ready

AI inside an interactive 3D design tool, for stylized 3D web experiences.

Starting price: Free tier; Hobby from $15 / seat / month
Free trial: Free tier, with a watermark on web exports
Commercial use: Paid tiers

Overview

Spline is a browser-based 3D design tool rather than a standalone generator, and the AI sits inside it. Modelling, materials, physics, particles, timeline animation and states-and-events interactivity share one editor with real-time collaboration, and AI 3D generation turns a text prompt or an image into a mesh, with a choice of third-party models behind it and an estimated credit cost shown before each run. Scenes publish to the web as a URL, a viewer embed or framework code. The free tier watermarks web exports.

Our take

Spline is the right call when the 3D is going into a product surface rather than a render pipeline: a landing page, an app screen, a configurator. It is a design tool first, so generation is one feature among many, and what comes out is meant to be composed, animated and shipped from inside Spline rather than handed to a game engine. Teams that need clean topology for a DCC workflow are in the wrong tool; teams that want designers to own the interactive result without a developer handoff are in exactly the right one. Budget for the seat rather than the credits, since the free tier's watermark rules out client work.

Key Facts

Category	AI 3D Modeling
Starting price	Free tier; Hobby from $15 / seat / month Or $12 per seat per month billed yearly. Pro is $30 and Max $70 per seat per month, or $25 and $60 billed yearly. Enterprise is quote-based.
Free trial	Free tier, with a watermark on web exports
Commercial use	Paid tiers
Output	Interactive 3D scenes, published to the web or exported as GLTF, GLB, STL or USDZ

Screenshots

Placeholders. They are replaced as soon as the vendor sends material, and both open the same short form.

Features

What it makes: Interactive 3D scenes and 2D/3D interfaces for websites, apps and gamified experiences
Detail and topology: Generated models carry more detail than hand-built ones, so a scene with several can slow down. Four engines to choose from: Hunyuan3D, Hunyuan 3.1 Pro, Trellis 2 and Meshy
Rigging and textures: Layer-based material system with a ready-made library, plus FBX import with animation and rig support
Speed: Two steps rather than one: a prompt returns a set of image previews, and the mesh is built from whichever preview is picked. The same image can be sent through a second engine without spending extra credits, and switching between the kept results is instant, so comparing costs less than regenerating. An estimated credit cost is shown before each run
Export and pipeline fit: GLTF, GLB, STL and USDZ export, plus PNG and JPG images and MP4, WebM or image-sequence video. Publish as a public URL, a Spline Viewer embed, or code for React, Next.js, Webflow, Framer and Wix Studio, with native iOS and Android embeds
Commercial use: Paid tiers
API: For driving a scene, not for generating one. The Code API, built on the Spline Runtime, reads and writes scene variables, changes object properties, triggers transitions and listens for events from Vanilla.js, React and Next.js, with equivalents for SwiftUI and Kotlin. A separate Real-time API feature, configured in the editor, lets a published scene call an external endpoint. The desktop app bundles an MCP server that an AI client can call to build and edit scenes; the documentation describes no endpoint for generating a model outside the app

Integrations

React
Next.js
Webflow
Framer
Wix Studio
Swift (iOS)
Kotlin (Android)

Deployment and Support

Deployment: Cloud (SaaS)
Browser-based
Support: Community forum
Onboarding: Documentation and knowledge base
Video tutorials
Company size: Freelancers
Small and mid-sized
Enterprise

Suitability

Industry	Freelancers	Small and mid-sized	Enterprise
Agencies	Not stated	Not stated	Not stated
Architecture & Engineering	Not stated	Not stated	Not stated
Consulting	Not stated	Not stated	Not stated
Media & Creative	Stated as a fit	Stated as a fit	Stated as a fit
Technology	Not stated	Not stated	Not stated

The table combines the industries the vendor addresses with the company sizes the tool is aimed at. An empty cell means the combination is not stated, not that it is ruled out.

Pros and Cons

Strengths

AI generation inside a full interactive 3D web editor, not a separate step
Publishes straight to the web, with code exports for React, Next.js, Webflow and Framer
Real-time collaboration on the same scene
Desktop app ships an MCP server, so an AI client can drive the open editor

Limitations

Web and design focused, not for high-poly game or film assets
Different workflow from pure generators
Free tier watermarks web exports
AI credits come only with a paid plan

Pricing

Free

$0

Per month. Limited personal files, unlimited file viewers, web exports with watermark.
Hobby

$15

Per seat per month, or $12 billed yearly. Unlimited 3D and 2D files, no watermark on web exports.
Pro

$30

Per seat per month, or $25 billed yearly. Unlimited folders and projects, video export, Apple and Android exports, unlimited variables, APIs and webhooks.
Max

$70

Per seat per month, or $60 billed yearly. 10,000 AI credits per month, 5x more media generation per week.
Enterprise

Custom

Billed annually. Custom AI credits, centralized licensing and billing, team privacy, SAML single sign-on, priority support.

Best For

Media & Creative

Alternatives and Comparisons

What users say

Reviews

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