Paid

STL Studio

Tripo3D, Hunyuan3D and Rodin in one studio, with a print check and a flexi model maker

STL Studio is a paid browser tool for comparing three AI engines and making flexi toys. Free account but no free credits; one-time 300-credit starter pack for $4.99 for new members; plans $10/month (300 credits), $20/month (800) and $50/month (2,500); packs $40 (850), $75 (1,900) and $150 (4,200) that never expire; a run costs 20 to 80 credits. Exports STL, OBJ and GLB. Last checked 25 October 2026.

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At a glance

Price: Free account but no free credits; one-time 300-credit starter pack for $4.99 for new members; plans $10/month (300 credits), $20/month (800) and $50/month (2,500); packs $40 (850), $75 (1,900) and $150 (4,200) that never expire; a run costs 20 to 80 credits
Runs on: Browser
Exports: STL, OBJ, GLB
Multicolor: No, single color
Account: Required to download
Open source: No
Skill level: Easy: a few settings to tune
Best for: Comparing three AI engines and making flexi toys
Selling prints: On a paid plan The terms say you keep ownership of your models and users with commercial licenses may use them commercially; the pricing page lists a commercial license on the Professional ($20) and Ultimate ($50) plans, not on Starter or the credit packs.
How we checked: Opened the generator Studio page loaded without an account showing Standard (40), Premium (60) and Ultra (80 credit) tiers, FDM Optimized, Segmented Parts, face limit and seed; Create asks you to sign in. Pricing page and FAQ read; no model generated
Checked by: Mike Janssen
Last checked: 25 October 2026

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Sources: STL Studio pricing, STL Studio homepage and FAQ, STL Studio terms of service (checked 25 October 2026)

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What is STL Studio?

STL Studio is a web app that runs several AI 3D engines, Tripo3D, Hunyuan3D and Rodin, behind one account and one credit balance. You type a prompt or upload a reference image, pick a quality tier and get a model back in about 2 to 5 minutes, or longer for the most detailed settings. The studio exposes the engine settings: geometry quality, a face limit, textures and PBR materials, a negative prompt, a seed, and a Segmented Parts option that splits a model into separate parts.

For printing there is an FDM Optimized setting that simplifies the geometry for filament printers, and every model gets a print analysis that flags non-watertight geometry, thin walls and bed fit. A Flexi Generator adds chain-link joints to a model to make an articulated print-in-place toy, though the site says to expect some tuning of the joint clearance. Downloads come as STL, OBJ or GLB. Models have no fixed real-world scale, so you set the size in your slicer.

An account is free, but there are no free credits: new accounts can buy a 300-credit starter pack for $4.99. Runs cost 20, 40, 60 or 80 credits from Basic to Ultra. Plans are $10, $20 and $50 a month, and one-time packs run from $40 to $150. STL Studio is run by 1000 Digital, LLC. It suits makers who want to compare engines and try flexi prints without separate subscriptions.