In 3D model generation, Hunyuan3D 2.1 (Tencent) ranks #2 and Sloyd ranks #4. On 3D Arena, Hunyuan3D 2 is #8 and Hunyuan3D 2.1 is #10 of 24 image-to-3D models. Free open weights you run on your own GPU, but the licence doesn't cover the EU, UK or South Korea. 3D Arena leaderboard
Commercial use: Hunyuan3D 2.1 (Tencent): restricted (see notes) terms. Sloyd: commercial on paid plans only terms.
Free plan: Hunyuan3D 2.1 (Tencent): free plan (Free open weights (your own GPU costs)) pricing. Sloyd: free plan (Free Guest plan; personal use only) pricing.
Shipping free-plan output in a paid game: neither allows it, per their published terms.
API and MCP: Hunyuan3D 2.1 (Tencent): public API, official MCP server. Sloyd: public API, no MCP server found.
Engine integrations stated by the vendor: Hunyuan3D 2.1 (Tencent): none stated (standard file export). Sloyd: Godot, Unity, Unreal, Blender, Roblox.
Self-hosted image-to-3D outside the EU/UK/South Korea
Template-based game-ready props
What it does
Open-weights image-to-3D model with PBR material generation that you can run on your own hardware.
Template-based and AI 3D generator for game-ready props and objects, with browser editor and plugins for Unity, Unreal and Blender on paid plans.
Verdict
For devs who can self-host a 3D model generator at no licence cost; the licence excludes the EU, UK and South Korea, and products over 1 million monthly users must request a licence.
For game-ready props from editable templates with Unity/Unreal plugins; the free plan is personal-use only.
Tasks●
3D model generation, Textures & materials
3D model generation
Engines●
Any (standard file export / engine-agnostic)
Godot, Unity, Unreal, Blender, Roblox
Free plan
Free plan Free open weights (your own GPU costs)
Free plan Free Guest plan; personal use only
Pricing
Free to download and self-host (your own GPU/compute costs apply). source
Free Guest plan. Plus US$15/month (US$12.50/month billed yearly). Pro US$50/month (US$41.67/month billed yearly). source
Restricted (see notes) Tencent Hunyuan 3D 2.1 Community License: does NOT apply in the EU, UK or South Korea; use of the works or outputs outside the licensed territory is unauthorized; products with over 1 million monthly active users must request a license from Tencent. source
Commercial on paid plans only Free plan: personal-use license. Plus and Pro include a commercial license (you own what you generate; Pro adds reselling). source
Revenue share / caps●
Products with over 1 million monthly active users must request a licence from Tencent.
Not stated by vendor
API
Available. Paid Hunyuan 3D API on Tencent Cloud source
Rows marked ● differ between the two tools. Licence badges: green = commercial use allowed (including any free plan or trial), amber = paid plans only, restricted, or allowed but with no free plan, red = not allowed, grey = not stated by vendor or not applicable. Read the vendor's current terms before you ship.
