Promethean AI vs Spline

Tagline

AI Braintrust for Creative Teams

Design 3D scenes in the browser, with AI

Category

Pricing

Rating

Platforms

API

Open source

Description

Promethean AI is an artificial intelligence assistant for professional creative teams that build virtual 3D worlds. It helps streamline digital art production, asset management, and prototyping workflows by learning from and organizing your team's creative assets without requiring them to change their existing 3D editors.

Spline is a collaborative 3D design tool with AI-powered texture and style generation.

Key features

• AI Asset Management
• AI World Building
• Inspiration Mode Browser
• Custom AI Models
• Python Customization
• C++ and C# Integrations
• SSO User Management
• Automated Deployment Syncing
• Collaboration Boards (Palettes)

• Clean topology
• PBR textures
• Rig-ready output

Pros

• Offers a free version for individuals that includes AI asset management and palettes.
• Does not upload, store, or train on user asset files, keeping data strictly private.
• Easily integrates with existing pipelines without requiring artists to change their 3D editors.
• Allows enterprise teams to train custom AI models to build novel combinations of assets.
• Highly customizable for technical artists, supporting C++, C#, and Python integrations.
• Supports API integration with just a few lines of code to keep libraries synced to automated workflows.
• Includes shared collaboration boards (palettes) to streamline creative flows without coding.
• Offers SSO user management, MFA, and automated deployment integrations for enterprise scale.

• Browser-based 3D editor
• Real-time collaboration
• No download required
• Interactive web export
• Physics simulation
• Reusable component system
• AI texture and style generation
• Generous free tier

Cons

• Enterprise and paid tier pricing details are not disclosed publicly on the pricing pages.
• No native mobile applications (such as iOS or Android apps) are mentioned.
• No SOC2 or ISO security compliance certifications are referenced in the provided text.
• Requires downloading a desktop build, as a purely cloud-based web editor is not listed.
• Free version restricts access to advanced enterprise features like custom model training and SSO.

• Learning curve for 3D newcomers
• Performance limits in browser
• Less powerful than Blender
• Limited render quality
• Lag on complex scenes
• Export format restrictions
• No offline mode
• Advanced features gated to paid

Pricing plans

• Enterprise Features & API—
  • • Enterprise Features & API

• FreeUSD0/month
  • • Unlimited Viewers
  • • Web exports with watermark
  • • Access to Spline Templates
• StarterUSD12/month
  • • Everything on Free, plus:
  • • Unlimited 3D & 2D files
  • • Upload video
  • • No watermark on web exports
• ProfessionalUSD20/month
  • • Everything on Starter, plus:
  • • Unlimited folders and projects
  • • Video export
  • • Apple & Android exports
• Spline AI+USD5/month
  • • 2000 AI credits / month
  • • AI 3D Generation & more
• Enterprise—
  • • Everything on Professional, plus:
  • • Multiple teams with team privacy
  • • Custom onboarding and training
  • • Custom requests / month

Website