In Textures & materials, Skybox AI (Blockade Labs) ranks #8 and Hunyuan3D 2.1 (Tencent) ranks #9. No independent quality tests found. Ranked on game-dev fit: commercial terms not stated by vendor; Unity integration; API.
Commercial use: Hunyuan3D 2.1 (Tencent): restricted (see notes) terms. Skybox AI (Blockade Labs): not stated by vendor terms.
Free plan: Hunyuan3D 2.1 (Tencent): free plan (Free open weights (your own GPU costs)) pricing. Skybox AI (Blockade Labs): free plan not stated by vendor pricing.
API and MCP: Hunyuan3D 2.1 (Tencent): public API, official MCP server. Skybox AI (Blockade Labs): public API, MCP server in preview.
Engine integrations stated by the vendor: Hunyuan3D 2.1 (Tencent): none stated (standard file export). Skybox AI (Blockade Labs): Unity.
Self-hosted image-to-3D outside the EU/UK/South Korea
360° skyboxes and HDRI environments
What it does
Open-weights image-to-3D model with PBR material generation that you can run on your own hardware.
Generates 360° panoramic skyboxes and environments (up to 16K and HDRI on higher tiers), with an API for in-app generation.
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 360° skyboxes and environment backdrops; the terms say you own your assets, but commercial terms below the Business tier are unverified.
Tasks●
3D model generation, Textures & materials
Textures & materials, Concept art & 2D assets
Engines●
Any (standard file export / engine-agnostic)
Unity
Free plan●
Free plan Free open weights (your own GPU costs)
Not stated by vendor
Pricing
Free to download and self-host (your own GPU/compute costs apply). source
Essential US$20/month, Standard US$48/month per seat, Business US$112/month (as listed on the plans page; a second set of prices US$24/US$140 is also shown, likely monthly vs annual billing: unverified). Free tier details: unverified. source
Export formats
Not stated by vendor
Not stated by vendor
Commercial use●
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 Terms: "You own all Assets You create with the Services, to the extent possible under current law." Plans page lists "Commercial licensing" on the Business tier; commercial terms for lower tiers: unverified. 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.
