In 3D model generation, Hunyuan3D 2.1 (Tencent) ranks #2 and Thrixel ranks #9. 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. Thrixel: not stated by vendor.
Free plan: Hunyuan3D 2.1 (Tencent): free plan (Free open weights (your own GPU costs)) pricing. Thrixel: free plan (250 Cubes a month; Detailer, Sculptor, Texture and Rig limited to 4 runs each a month) pricing.
API and MCP: both: public API, official MCP server.
Engine integrations stated by the vendor: Hunyuan3D 2.1 (Tencent): none stated (standard file export). Thrixel: Unity, Unreal, Roblox.
Self-hosted image-to-3D outside the EU/UK/South Korea
Generating editable, multi-part 3D props from a coding agent
What it does
Open-weights image-to-3D model with PBR material generation that you can run on your own hardware.
Text- or image-to-3D models built from separate named parts, with editing, detailing, retexturing, triangle reduction and rigging. Made to be driven by coding agents (Claude Code, Codex, Cursor) through its MCP server and Build World skill.
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 agent-driven 3D asset generation with part-level editing and an official MCP server; its terms page was not readable to us, so commercial use is not stated.
Tasks●
3D model generation, Textures & materials
3D model generation
Engines●
Any (standard file export / engine-agnostic)
Unity, Unreal, Roblox
Free plan
Free plan Free open weights (your own GPU costs)
Free plan 250 Cubes a month; Detailer, Sculptor, Texture and Rig limited to 4 runs each a month
Pricing
Free to download and self-host (your own GPU/compute costs apply). source
Free: 250 Cubes a month. Paid plans from US$20/month; Pro US$30/month (US$300/year), Studio US$99/month (US$990/year), Ultra US$200/month (US$2,000/year); Enterprise not priced. Top-up packs from US$10 for 400 Cubes. Figures from Thrixel's own public plan data (its pricing page returned 403 to us). 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 use: not stated by vendor Not stated by vendor
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
Available. REST API at api.thrixel.com/api/v1 with API keys source
MCP server
Official MCP server. Tencent CloudBase MCP server template for the Hunyuan 3D API source
Official MCP server. thrixel-mcp server for Claude Code, Codex, Cursor and other MCP clients 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.