Spline review: the AI 3D modeler built into a web 3D editor
Answer in brief: Spline is the best AI 3D modeler for people who need the model to live on a website or in an app. Its AI 3D Generation turns text or an image into a textured model with PBR maps, using engines such as Hunyuan3D, Trellis 2 and Meshy. The model drops straight into a scene you can light, animate and publish to the web, iOS and Android. Paid plans start at $12 per seat a month billed yearly, with 2,000 AI credits. The Free plan has no AI credits, and full-texture GLTF, USDZ and STL exports need Pro. This is independent research from Spline's pricing and AI generation pages; we did not test it hands-on.
Verdict: from prompt to published 3D scene. Choose Spline when the end product is interactive 3D on the web or in an app, not just a file.
What Spline does for AI 3D modeling
Describe an object or drop in a front-facing image (PNG, JPG or WebP up to 15 MB). Spline shows image previews, and you pick one to turn into a textured 3D model with base colour, metallic-roughness and normal maps. You can choose the engine and run the same image through more than one to compare. The studio previews shaded, clay and wireframe views and each map on its own, shows triangle and vertex counts, and keeps every generation in a searchable library. Download the GLB, or open it in Spline's editor to light, animate and publish.
Who Spline fits best
- Web designers and front-end teams adding interactive 3D to sites.
- Product teams shipping 3D to iOS (Metal, SwiftUI) and Android (Vulkan, Jetpack Compose).
- Agent-driven workflows that use the Spline MCP server to build scenes.
Why Spline is different
- Generation plus a real editor. No export-import loop between tools.
- Engine choice. Hunyuan3D, Trellis 2 and Meshy in one place.
- Ship everywhere. Web (WebGPU/WebGL) on all paid plans, plus Apple and Android exports, code export, unlimited variables, APIs and webhooks on Pro.
- MCP built in. 20 tool calls a day on Free, 100 on Hobby, 200 on Pro and 400 on Max and Enterprise.
- Team-ready. Unlimited viewers on every plan. Enterprise adds SAML SSO, multi-team privacy, version history and self-hosted export.
Limits to know
- No AI on Free. AI 3D generation starts on Hobby.
- Exports gated to Pro. GLTF with colour and texture, USDZ and STL exports require Pro or above.
- Credits reset. AI credits renew each cycle and don't roll over. They are shared with Spline's AI agent and image tools.
- Generated meshes can be heavy. Spline's own demo model shows about 1.1 million faces, so simplify for the web.
Spline pricing
| Plan | Yearly (per seat/mo) | Monthly | AI credits/seat |
|---|---|---|---|
| Free | $0 | $0 | None |
| Hobby | $12 | $15 | 2,000 |
| Pro | $25 | $30 | 3,000 |
| Max | $60 | $70 | 10,000 |
| Enterprise | Custom | Custom | |
Extra credits cost $5 per 1,000 per seat per month, up to 10,000 on Hobby and Pro and 20,000 on Max.
Notable facts
Spline's pricing page quotes Zeh Fernandes, Founding Designer at Resend, on using Spline to make the product feel tangible. Spline publishes this as a customer quote.
Best Spline alternatives
- Meshy: the deepest standalone generation and rigging toolset.
- 3D AI Studio: multi-engine generation without an editor subscription.
- Autodesk Flow Studio: a cheap browser option from Autodesk.
Spline FAQ
Can I generate 3D models in Spline for free?
No. The Free plan has no AI credits. AI 3D generation starts on Hobby at $12 per seat a month billed yearly, with 2,000 credits.
Which AI models does Spline use?
Spline lets you pick between engines such as Hunyuan3D, Trellis 2 and Meshy, and run the same image through more than one.
What file format do Spline generations come in?
You can download a GLB, or open the model in Spline. Exporting GLTF with colour and texture, USDZ or STL requires Pro.
Sources
- Spline pricing
- Spline AI 3D Generation
- Spline MCP
Independent research, updated 9 November 2026. No hands-on testing claims.
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