Meshy
AI 3D model generator that turns text prompts or images into textured, riggable meshes in about a minute.
Alpha3D
Cloud image and text to 3D with a mandatory cleanup pass, three polygon density tiers and quad output from the Basic plan upward.
AI 3D Generation Subscription
Overview
Alpha3D is a cloud generator that runs every result through an automatic cleanup step before handing it over, correcting non-manifold geometry and holes so the mesh comes out watertight. On top of that it exposes polygon density as three named tiers rather than a single number, and quad output from the Basic plan upward. There is no free tier: the entry price is a USD 5 Tester plan with 90 credits, roughly three models a month.
Key features
Cleanup as part of generation, not an afterthought
Every result goes through an automatic pass that closes holes and resolves non-manifold geometry, so what you download is watertight. That is the property slicers check, and it is the most common reason a generated mesh fails at the slicer rather than at the engine.
Three polygon density tiers
Low Poly at roughly 3,000 to 15,000 faces for mobile and AR, High Res at 300,000 to 500,000 as the default, and Ultra High Res at 500,000 to 1.5 million for hero assets and print. Low Poly disables PBR and relies on painted texturing instead.
Quad output from Basic upward
Quads subdivide predictably and deform without the pinching triangles cause at joints. Reviewers note the edge flow is algorithmically regular rather than artist-placed, so it holds up for props and less well for faces.
REST API and MCP server on every plan
Both the API and a Model Context Protocol server are included from the lowest tier, so generation can be driven from a script or an assistant without an enterprise contract.
Pros and cons
What users consistently praise
- Watertight output by default because cleanup is part of the pipeline rather than left to the user.
- Polygon density is chosen from named tiers spanning 3,000 to 1,500,000 faces, so the asset can match the target platform up front.
- Quad output is available from the Basic plan, which most generators in this price range do not offer.
- API and MCP access are included on every plan rather than gated behind enterprise pricing.
What users consistently criticise
- No free tier at all, so evaluating the output costs money before you know whether it fits.
- The default High Res tier at 300,000 to 500,000 faces is far too heavy for a mobile or VR prop, so most game use means dropping to Low Poly, adding LODs, or relying on Nanite.
- Quad edge flow is regular rather than artist-placed, which shows on anything that deforms.
- No real-world scale: exports arrive at an arbitrary unit scale and have to be resized in the slicer before printing.
- No published ratings on any major review platform, despite the company operating since 2018, so there is no third-party sentiment to weigh at all.
Recurring themes across third-party user reviews (G2, Capterra, TrustRadius).
Videos
Pricing
Is Alpha3D free?
Alpha3D is not free. It is paid software with no free tier, starting at USD 5/month.
| Plan | Price | What you get |
|---|---|---|
| Tester | USD 5/month | 90 credits a month, roughly 3 models. The entry point rather than a free trial. |
| Basic | USD 17/month | 1,000 credits, roughly 33 models. Quad output starts here. |
| Creator | USD 54/month | 3,200 credits, roughly 107 models, full production toolkit. |
| Creator Pro | USD 162/month | 10,000 credits, roughly 333 models. |
| Enterprise | Custom | Custom credit volume. |
Best for
Teams that need output to reach a slicer intact
The mandatory cleanup pass means watertight geometry is the default rather than something you fix afterwards. Reviewers rate the STL exports well against photogrammetry scans, which routinely arrive with holes.
Anyone choosing polygon density up front
Three named tiers spanning 3,000 faces to 1.5 million means the same tool serves a mobile prop and a hero asset, which usually requires either two tools or a retopology step.
Developers wiring generation into a pipeline
REST API and MCP access are on every plan including the USD 5 one, so scripted use does not require a sales conversation.
Who should look elsewhere
Anyone wanting to try before paying
There is no free tier. The cheapest way in is the USD 5 Tester plan at 90 credits, about three models a month, which is an evaluation budget rather than a working one.
Character animation with expressive deformation
Quads are produced but the edge flow is algorithmically regular. Reviewers report it lacks the loops an artist places around eyes, mouth and shoulders, so a rigged character still needs manual retopology.
Precision mechanical parts
Generative meshes cannot hold exact parametric constraints, so a 5mm hole is approximately 5mm. Technical artists use output as a base mesh and rebuild to spec rather than treating it as final.
Frequently asked questions
Is there a free tier?
No. The cheapest plan is Tester at USD 5 a month for 90 credits, roughly three models. Every plan above it is priced in US dollars too, from Basic at USD 17 to Creator Pro at USD 162, checked against the vendor pricing page on 2026-09-03.
Will the output 3D print?
The geometry side is handled: a mandatory cleanup pass closes holes and fixes non-manifold edges, so the STL is watertight, which is what a slicer requires. Scale is not handled. The file arrives at an arbitrary unit scale, so set the bounding box to real dimensions in the slicer before printing.
Can I use it for mobile games?
Yes, but pick the tier deliberately. The default High Res output runs 300,000 to 500,000 faces, which is an order of magnitude past a typical mobile prop budget. Low Poly at 3,000 to 15,000 faces is the mode that fits, and it turns off PBR in favour of painted texturing.
Does it produce quads or triangles?
Quads from the Basic plan upward. They subdivide and deform far better than triangles, which is why professional pipelines ask for them. The caveat is that the edge flow is algorithmically even rather than placed around areas that deform, so characters still need a human pass.
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Sloyd
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