PromeAI vs Gendo: which AI sketch-to-render tool to use

Pick PromeAI if you work alone and want one coin balance across 15 image models and 13 video models, from $29/mo — or $39/mo once the work is commercial. Pick Gendo if a studio of up to five people reviews and comments on renders together: its Studio plan is £79/mo with five seats included, and its Free plan gives unlimited watermarked generations.

If what you actually need is to turn a 3D model or a sketch into a render, Render a House is the alternative: it runs in any browser with no GPU, returns a concept image in about 30–60 seconds, and is free for 3 renders a day. Last updated: September 25, 2026.

Both turn a sketch or an exported view into a photoreal image in the browser. PromeAI is a general creative suite; Gendo is an architecture canvas for teams. Figures from each vendor’s own pages, checked September 25, 2026.

PromeAI, from the team behind cutout.pro, serves architects, product and game designers alike.

More models under one plan

One coin balance covers 15 image models, including GPT Image 2, Nano Banana 2, Seedream and Qwen, and 13 video models. Source: promeai.pro pricing.

A lower entry price for one person

Standard is $39/mo with a full commercial licence, against Gendo’s £79/mo Studio plan sized for five seats. Base at $29/mo is cheaper still, but personal use only. Source: promeai.pro commercial use.

Tools beyond architecture

Sketch Rendering sits next to Region Rendering, relighting, outpainting and image to video. Source: promeai.pro Sketch Rendering.

Gendo is narrower: one canvas where a whole architecture studio sees sketches, renders and edits.

Built for team review

Studio includes five seats, unlimited viewer seats, team roles, private workspaces and live shared comments. Extra seats are £15/seat/mo, per Gendo’s FAQ. Source: gendo.ai pricing.

An unlimited free plan

Gendo does not use credits. Free users get unlimited watermarked generations with 1K export and no credit card. Source: gendo.ai FAQs.

Privacy a practice can sign off

Studio projects are private by default and never used for training, and Enterprise adds SSO, user provisioning and custom trained models. Source: gendo.ai product.

PromeAI prices in dollars and meters work in coins; Gendo prices in pounds, excluding tax, with unlimited image generation. Checked September 25, 2026; PromeAI’s yearly prices were a time-limited promotion.

The choice depends on who is in the room and what has to come out.

A solo designer billing clients

PromeAI Standard, $39/mo with commercial rights. Base has none.

A studio of three to five reviewing with clients

Gendo Studio: five seats, unlimited viewers and shared comments for £79/mo.

Presentation video as well as stills

PromeAI Ultimate or Gendo Studio Scale; both include unlimited video.

A 3D model or a sketch, a deadline, no GPU

Render a House: upload the GLB or a sketch photo, get a render in about 30–60 seconds.

Render a House starts from whatever you have — a sketch, a plan, a screenshot or the 3D model itself — and gets it to a render quickly, without a GPU or a plugin.

Render a House is an AI rendering tool for architects, interior designers and real estate. Frame a GLB in the browser or photograph a sketch, and a concept image comes back in about 30–60 seconds. The UI is in English, Spanish, Italian and Portuguese.

What it cannot do

• Replace Gendo's shared canvas. There are no multi-seat workspaces, team roles or live shared comments of the kind Gendo Studio is built around.
• Match PromeAI's 42-tool range. Render a House is for architecture, interiors and real estate — not headshots, product shots or game art.
• Produce measured drawings or BIM data. The output is a concept image; geometry is generally preserved but can shift, so check openings and proportions against the model.
• Open a .skp file or run as a plugin inside SketchUp, Revit or Rhino. Export a GLB, or take a screenshot of the view, first.

See sketch to render.

PromeAI and Gendo rarely compete for the same buyer. PromeAI is better value for one person who wants the widest choice of models, video included. Gendo is better for a practice that wants renders discussed in one shared, private place, and its free plan makes that easy to test.

If the job is simply to turn a 3D model or a sketch into a render, try Render a House first: it is free for 3 renders a day, needs no GPU, and runs in the browser you already have open.

Is Gendo better than PromeAI?

For an architecture team, yes: Gendo is built around a shared canvas with five Studio seats and unlimited viewer seats. For one person who wants many image and video models on one budget, PromeAI fits better, with commercial use from $39/mo.

Is PromeAI free?

Partly. PromeAI has a Free version, but its commercial-use page limits Free and Base to personal use, and the pricing page does not publish the free allowance (checked Sept 2026). Commercial work starts on Standard at $39/mo.

Is Gendo free?

Yes. Gendo's Free plan gives unlimited watermarked generations on one project canvas with 1K export and no credit card. Commercial use and watermark-free export start on Studio at £79/mo; students with .edu or .ac addresses get a free Educational plan, without commercial rights.

Can I use PromeAI or Gendo without a 3D model?

Yes. Both render from a hand sketch or a photo, and Gendo also generates from text alone. Render a House also takes GLB, GLTF and OBJ models when you have one.

Do PromeAI and Gendo run on a Mac?

Yes, both are web apps used in the browser, so a Mac with a current browser is enough. Gendo takes SketchUp, Rhino or Revit exports as uploaded images rather than through a plugin. Render a House is also browser-based and needs no GPU.

What is the best alternative to PromeAI and Gendo?

Render a House, if the job is turning a 3D model or a sketch into a render. It runs in any browser with no GPU, returns a concept image in about 30–60 seconds, and is free for 3 renders a day. It has no team canvas like Gendo and no non-architecture tools like PromeAI.