PromeAI vs Render a House (2026): Which AI Renderer for Architecture?

• Free plan:Render a House’s free plan is permanent: 3 credits a day at 1K, watermarked, no card needed. PromeAI mentions a Free version, but its allowance and watermark rule are not published (checked October 2026).
• Commercial use:Render a House allows commercial use on every plan, and the watermark appears on the free tier only. PromeAI’s commercial licence starts with Standard at $39/mo.
• Range vs focus: PromeAI is a general creative suite with 42 AI tools. Render a House is built for architecture, interiors and real estate, and also accepts 3D models (SKP, GLB, GLTF, OBJ, STL) on paid plans.
• Speed: Render a House renders in about 30–60 seconds. PromeAI publishes no render time.
• Teams: Render a House has no formal team plan. PromeAI shows a Team tab on its pricing page but does not publish its price or seats.

Both tools turn a sketch or an exported view into a photoreal image in the browser. Figures come from each vendor’s own pages, checked October 2026.

“Free trial” can mean three different things: a time-limited trial, free signup credits, or a free plan that never expires. The two tools here sit in different places.

Render a House: a free plan, not a trial

Render a House has no trial clock. The Free plan resets 3 credits every 24 hours, with no card needed. What you get on Free:

• Prompts, camera angles, compare, download, share, folders and history.
• The standard model at 1K, not the Pro model.
• A small Render a House watermark on every render.

What you do not get on Free: video, Copy Render, priority queue, area-selection edits, and 3D model import. In practice, you test Render a House on Free with images: a hand sketch, a floor plan exported to PNG or JPG, or a screenshot from your 3D tool. If SketchUp .skp upload is the thing you want to test, that needs Pro or Studio.

A render costs 1–4 credits depending on model and resolution; a standard 1K render, the one Free uses, costs 1 credit. So the daily allowance covers a handful of test renders rather than a full project. Failed renders do not consume credits.

PromeAI: a Free version with an unpublished allowance

PromeAI’s pricing page lists Base, Standard, Pro and Ultimate, plus a Team tab, and does not publish a free allowance or say whether free output is watermarked (checked October 2026). Its commercial-use page says the Free and Base versions are for personal use only, and the commercial licence starts with the paid Standard plan. Whether PromeAI gives signup coins or a time-limited trial, and whether a card is required: not published (checked October 2026).

What one image costs depends on the model. PromeAI’s pricing page shows Base’s 500 monthly coins covering 500 GPT Image 2 images at 1K low, or 50 Nano Banana 2 images at 2K.

Which free option suits an architect testing a tool?

If you want to try a real client sketch without a card, and keep the right to use the output in client work, the answer depends on the tier. Render a House says renders belong to you and commercial use is allowed on every plan, with the watermark on the free tier only. PromeAI’s own page keeps Free output to personal use. For a wider look at the market, including tools with 14-day trials, see our free AI rendering tools for architects comparison.

PromeAI is a suite. Sketch Rendering sits next to Region Rendering, relighting, outpainting, background removal and image to video, 42 AI tools in total according to its site. It serves architects, product designers and game designers alike. The workflow is: pick a tool, upload an image, spend coins.

Render a House is organised around a project. You upload a design, choose a style (Photoreal, Clay, Linework, or a custom style from a reference image) and generate. With a 3D model you can orbit it, save camera views, and each saved view becomes a render of that exact camera. Other features include re-lighting, material swaps, render variations, 4K upscaling, object removal, 360° renders, and video transitions between two views. You can also set a real address and place the model at its real-world location.

The practical difference: PromeAI gives you breadth. Render a House gives you a narrower toolset around one job, taking an architectural design to a client-ready image.

What you can upload

• PromeAI: an image, such as a sketch or a view exported from a model. Whether it accepts 3D model files or PDFs, and its image size limits: not published (checked October 2026).
• Render a House: JPG, PNG and WebP images (large files are downscaled automatically); on paid plans, SKP, GLB, GLTF, OBJ and STL 3D models with no size limit. SketchUp .skp files upload directly with no plugin. Very old .skp files may need to be re-saved in a recent SketchUp version. PDF is not accepted: export the plan to PNG or JPG first.

Revit and other BIM files

Render a House does not accept Revit .rvt files. Revit cannot export glTF on its own; the Render a House docs point to the Leia – glTF Exporter plugin (by e-verse, for Revit 2021–2026) from the Autodesk App Store, then export a .glb. Or screenshot a view and upload the image. Render a House also has no native plugins for design software. If you want AI rendering inside your modelling software, see our Render a House vs Veras guide.

What you get back

Render a House outputs PNG or JPG, auto-upscaled on download. Optional upscaling costs 1 credit. Video costs 0.8 credits per second on paid plans.

PromeAI’s pricing page quotes settings such as Nano Banana 2 at 2K for images and Seedance 2.0 at 480p for video; its output file formats and maximum resolution are not published (checked October 2026).

PromeAI prices in dollars and meters work in coins. Render a House meters work in credits. The two units are not interchangeable, so compare plans by price and by what is included, not by the raw numbers.

When we checked PromeAI’s pricing page in October 2026, its yearly prices were shown as a sale with a countdown timer (Base $24.5/mo, Standard $29/mo, Pro $59/mo and Ultimate $103.5/mo, each billed yearly). Render a House annual plans include 4 months free; see plans and pricing.

Things worth knowing before you pay:

• Same entry price for commercial work. PromeAI Standard and Render a House Pro are both $39/mo on monthly billing. Standard adds the commercial licence; Pro adds 3D import, video and the watermark-free output on top of the same commercial rights Render a House grants everywhere.
• Credits are not unlimited on Render a House. Pro and Studio have monthly credit allowances. Extra credits cost $0.20 each (presets of $10 for 50 or $20 for 100, minimum $5), do not expire, and are non-refundable. Auto top-up is available on Pro and Studio, capped at 10 per month. Checkout is by card, in USD.
• PromeAI has unlimited tiers; Render a House does not. Pro and Ultimate on PromeAI make images or video (or both) unlimited on eligible models. If you render at very high volume, that matters.

Render a House has no formal team plan, seats or roles. There are two ways to work with others. A public share link is read-only, carries pinned comments and threaded discussion, and can be revoked at any time, which is how most people handle client review. Separately, a project owner can invite people by email as project members, who get full access to edit and delete content in that project. For a studio, the plans page recommends Studio ($99/mo) on a single shared studio account.

PromeAI shows a Team tab on its pricing page, but its price, seats and shared-workspace features are not published (checked October 2026).

If your studio needs a shared review canvas with fixed seats, neither tool is the obvious fit from what is published. Our PromeAI vs Gendo page covers that case.

• You want one coin balance across 15 image models (including GPT Image 2, Nano Banana 2, Seedream and Qwen) and 13 video models (such as Seedance and Wan).
• Renders are only part of the job. You also make product shots, posters or game art, and want relighting, outpainting and background removal in the same account.
• You render so much that PromeAI’s unlimited images or video on Pro or Ultimate is worth $79–$138/mo.

• You want to start free without a card, and know up front that the free tier is watermarked and the commercial rights are clear.
• You work from a SketchUp model, GLB or OBJ and want the model to stay a model: orbit it, save views, render each view.
• You need a known speed: about 30–60 seconds per render.
• You want to share a project as one link, with clients pinning comments directly on the model.
• Your work is architecture, interiors or real estate, and you do not need non-architecture tools.

Where Render a House falls short: no team plan, no native plugins, no .rvt upload, no PDF upload, credit-based limits rather than unlimited use, and no mobile app. It is also not a general creative suite; it has no headshot, product or game-art tools.

Neither tool is the only option. From our free-plan comparison and the vendors’ own pages, checked October 2026:

• Chaos Veras: a 14-day trial with 100 credits shared by image and video generation. Billing starts automatically after the trial unless you cancel before it ends.
• mnml.ai: 100 free credits on signup, no card, and no time limit, per its pricing page; its free-tier watermark rule is not published there.
• VizBase: 5 free credits to start, and its pricing FAQ says the renders you generate are yours and can be used commercially.

Choose Render a House if you are an architect, designer or real estate professional who wants to test a free render service today. The free plan has no card, no expiry, and renders arrive in 30–60 seconds. Move to Pro at $39/mo (or $312/yr ($26/mo billed annually)) when you need SketchUp or GLB upload, video, and watermark-free output.

Choose PromeAI if renders are one part of a wider creative workload, or you want the widest choice of image and video models on one bill. It is also the better pick for very heavy use, given its unlimited tiers. Just check the free allowance and licence terms first, because Free and Base are personal use only.

Our small-sample trust signal: Render a House has a 5.0 rating from 2 reviews on Product Hunt and a 5.0 average from 4 validated reviews on G2 (checked October 20, 2026). That is a small number of reviews, so test it yourself on the free plan.

What is the best AI render service with a free trial for architects?

For a free start with no card, Render a House is our pick: the free plan gives 3 credits a day at 1K, refreshed every 24 hours, with watermarked renders in 30–60 seconds. Chaos Veras offers a 14-day trial with 100 credits for its plugin, but billing starts automatically afterward. The best choice depends on whether you want a browser tool or a plugin.

Is PromeAI free?

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

Is there a free alternative to PromeAI for architects?

Yes. Render a House has a permanent free plan with 3 credits a day and a watermark, and its renders are yours to use commercially. Upload a sketch, floor plan image or screenshot, pick a style and render. 3D model upload requires a paid plan.

Can I use Render a House for client work on the free plan?

Render a House says renders belong to the user and commercial use is allowed on every plan. Free-plan renders carry a small watermark, so most professionals move to Pro, $39/mo or $312/yr, to remove it.

Does Render a House need a 3D model?

No. You can start from a hand sketch, floor plan, photo or screenshot in JPG, PNG or WebP. A 3D model (SKP, GLB, GLTF, OBJ or STL) is optional and needs Pro or Studio.

Does Render a House work with Revit?

Not with .rvt files directly. Export a .glb with the Leia – glTF Exporter plugin (Revit 2021–2026), or upload a screenshot of your view. Render a House has no native plugins.

• AI rendering tools with a free plan for architects
• PromeAI vs MyArchitectAI
• PromeAI vs Gendo
• Render a House alternatives (2026)
• Render a House plans and pricing
• Hand sketch to render tutorial