12 Best AI Interior Design Rendering Tools in 2026 (Free & Paid)

The short answer: for a photo, Homestyler AI or ReimagineHome; for a SketchUp or Revit model, Veras or Spacely; for a sketch or floor plan, Render a House. Every price is the vendor's own list price, checked Sept 2026.

"Not published" means the figure was not on the vendor's public site when we checked. Speeds are vendor claims, not our benchmarks.

Most listicles rank these tools by output quality from a handful of screenshots. That is the wrong axis: what decides whether a tool works for you is the input it accepts. Ask three questions first.

What do you have on day one? A photograph of an existing room, a hand sketch, a floor plan, or an exported 3D model. Photo-first tools (Homestyler, ReimagineHome, Collov, Interior AI, RoomGPT) cannot start from a plan. Model-first tools (SketchUp Diffusion, Veras plugin, MyArchitectAI) cannot start from a sketch; MyArchitectAI's pricing page says plainly that floor plans, line drawings and hand sketches are not supported inputs.

Does the geometry need to survive? For a homeowner testing a colour scheme, a wall that moves 20 cm is fine; for a designer showing a client the room they are paying for, it is not. SketchUp Diffusion and Veras expose this trade-off as a slider; Render a House keeps geometry by default and tells you to check openings, roof lines and thin elements.

How is it billed? Per render (Homestyler, Collov), per credit (ReimagineHome, Spacely, Planner 5D, Render a House), per seat (Veras, SketchUp), or unlimited (MyArchitectAI). A per-seat plan suits one heavy user; a credit plan suits a studio where five people render occasionally.

1. Render a House

Render a House is an AI rendering tool for architects, interior designers and real estate. It is the only tool here that accepts all four input types (sketch, floor plan, 3D export and photo) in a browser with nothing to install. It is also the one we build, so read this entry with the same scepticism as the others.

• Best for: Interior designers who need a client image before a model exists, and anyone rendering from SketchUp, Revit or Archicad exports without a plugin.
• Inputs: Hand sketches, floor plans, existing photos or renders (JPG, PNG, WebP), and 3D imports in GLB, GLTF or OBJ with orbit and camera choice in the browser. SketchUp .skp and Revit .rvt files must be exported first.
• Price (checked Sept 2026): Free: 3 renders a day, no credit card, small watermark on downloads. Pro: $39/mo or $312/yr for 240 credits, the Pro model, 1K/2K/4K output, video and 3D imports. Studio: $99/mo or $792/yr for 1000 credits. A 1K standard render is 1 credit, 4K Pro is 4 credits, video is 0.8 credits per second, extra credits are $0.20 each, and failed renders are not charged. Full detail on the pricing page.
• Pros: Typical render in about 30 to 60 seconds; style presets plus reference-image styles with no fine-tuning; area editing and relighting on a finished render; video from a still; read-only share links; commercial use on every plan including free; uploads stay private unless shared; runs on Mac, Windows and Linux in Chrome, Firefox, Safari or Edge.
• Cons: Output is a concept image, not a measured drawing, and geometry can shift on openings, roof lines and thin elements. No native mobile app, no multi-user team account, no offline mode, and it is not a BIM or CAD replacement or a real-time engine. Complex inputs or heavy load can push a render to about two minutes.

The two workflows photo-first tools cannot do are documented in hand sketch to render and floor plan to 3D render.

2. Homestyler AI

Homestyler AI is the cleanest example of a photo-first tool. The homepage describes the whole product in three steps: upload a photo, pick one of 30 styles, get a redesign in about 30 seconds.

• Best for: Homeowners and agents restyling a photo of an existing room.
• Inputs: One photo of the room, at least 1024×1024 pixels according to the vendor FAQ. No sketch, plan or model input.
• Price (checked Sept 2026): Starter $29/mo billed monthly or $19/mo billed yearly for 200 renders a month; Pro $99/mo or $69/mo yearly for 800; Expert $299/mo or $199/mo yearly for 3,000. 10 free renders, no card required.
• Pros: Fast and simple; 30 styles; paid plans keep originals and renders private and include a commercial licence.
• Cons: Cannot start from a plan or sketch; the commercial licence is tied to paid plans; the vendor FAQ is written for homeowners rather than designers, and there is no geometry control beyond choosing a style.

3. ReimagineHome

ReimagineHome has moved from a one-click restyler to a conversational design tool. Its pricing page frames the product around "design decisions you can trust" and separates a legacy Essential tier from a Pro system with chat-based editing, reference photos and real shoppable products.

• Best for: Agents staging listings in batches and homeowners who want to iterate one element at a time.
• Inputs: Room photos; reference photos for scene or object guidance on Pro and above. A Photos to 3D feature is listed as coming soon.
• Price (checked Sept 2026): Essential $19/mo for 30 credits; Pro $36/mo for 200; Advanced $59/mo for 400; Agency $119/mo for 900. One generation costs one credit, two when it includes real-product matching; chatting is free. New users get 5 free designs.
• Pros: Incremental editing with memory, listing batch processing, reference-photo control, watermark-free output on every tier, no card for the trial.
• Cons: Essential is explicitly the legacy engine without conversational editing or high-resolution quality; 30 credits at $19 is $0.63 a render, the highest per-image cost on this list; render speed is not published.

4. SketchUp Diffusion (AI Render)

SketchUp Diffusion is what most people mean by "SketchUp AI Render". Trimble introduced it in a December 2023 Labs post as generative AI inside SketchUp that produces concept renderings from a snapshot of your model plus a text description or a preset style, with sliders that decide how closely the output follows the geometry you drew.

• Best for: SketchUp users who want concept images without leaving the model.
• Inputs: A snapshot of the current SketchUp model, optionally with iPad Markup sketches fed back in as input. No standalone photo or plan input.
• Price (checked Sept 2026): Bundled with a SketchUp subscription; Go is $10.75, Pro $33.25 and Studio $71.58 per user per month billed annually. Diffusion-specific limits are not published on the pricing page (checked Sept 2026).
• Pros: Zero export step; markup-to-render loop on iPad; the geometry adherence slider is exposed rather than hidden; the SketchUp Labs program means it ships inside the app you already pay for.
• Cons: Trimble itself calls the output concept visuals; you need a SketchUp model to start; the product page we tried returned a 404, so plan-level render allowances could not be confirmed.

5. Planner 5D

Planner 5D is a room modeller first and a renderer second, which makes it the odd one out here. You draw or import a plan, place furniture from a 10,000-plus item catalogue, and render the scene; the pricing page also describes an AI Studio with credit-priced image generation, restyling and video.

• Best for: Homeowners and students who have no model and no photo and want to build the room before rendering it.
• Inputs: Floor plan upload with AI plan recognition on Premium; custom 3D model uploads (.obj, .fbx, .blend, .stl) on Professional; text prompts and images in AI Studio.
• Price (checked Sept 2026): Free plan; Premium $19.99/mo or $59.99/yr with standard renders and 100 AI Studio credits a month (1,200 on annual); Professional $49.99/mo or $399.99/yr with unlimited 4K renders and 1,000 AI Studio credits a month.
• Pros: Genuine free plan; unlimited 4K renders on Professional; 360° panoramas and walkthroughs; CAD export on the top tier.
• Cons: Every render requires modelling the room first, so it is slower to a first image than any AI-only tool; AI plan recognition and AI Studio use separate allowances; render speed is not published.

6. Collov AI

Collov AI is priced and described for real estate. Its pricing page sells photo credits, and even the Standard tier lists virtual staging, furniture removal and a commercial photo licence.

• Best for: Agents and photographers staging vacant listings at volume.
• Inputs: Listing photos. Higher tiers add multi-angle staging, chat edit, material overlay, twilight conversion and weather or season changes.
• Price (checked Sept 2026): Standard $19/mo for 60 photo credits; Advanced $49/mo for 150; Premium $79/mo for 263; Enterprise $127/mo for 526; additional photos $0.24 each.
• Pros: 10-second turnaround stated on the pricing page; unlimited regeneration; no watermark and high-resolution downloads from the entry tier; API access on higher tiers.
• Cons: Photo only; no free tier visible on the pricing page; the feature set is built around listings rather than design development, so there is no plan or sketch path.

7. Interior AI

Interior AI is a one-person product that has aged well. The homepage lists a Sketch2Image mode that turns a rough interior sketch into a photoreal image in about 30 seconds, alongside the usual photo restyle and a virtual staging feature.

• Best for: Homeowners and designers who want a fast restyle and occasionally a sketch test.
• Inputs: Room photos and hand sketches (Sketch2Image); text prompts for style.
• Price (checked Sept 2026): Pro $49/mo monthly or $29/mo billed yearly ($349) for 1,000 designs a month; Premium $99/mo or $49/mo yearly ($599) for 5,000; Ultra $199/mo or $99/mo yearly ($1,199) for 25,000. A free tier is not shown on the pricing block (checked Sept 2026).
• Pros: Sketch input at a homeowner price; generous monthly quotas; custom prompts and a commercial licence on every paid plan; walkthrough video and VR on higher tiers.
• Cons: No floor plan or 3D model input; quotas are large but the tool is not built for geometry fidelity; no published free tier.

8. RoomGPT

RoomGPT is the tool that popularised one-photo room redesign in 2023. Its public homepage today consists of testimonials, a claim of more than four million users, and a sign-in button; there is no public pricing page (the /pricing URL returns a 404, checked Sept 2026).

• Best for: Trying a themed restyle on one photo with no commitment.
• Inputs: One room photo.
• Price (checked Sept 2026): Not published on the public site (checked Sept 2026); plans are shown after login. The homepage advertised a limited-time discount code when we checked.
• Pros: Very low friction; the largest user count claimed on this list.
• Cons: No published price, quota, speed or licence terms; no sketch, plan or model input; no professional features such as private mode or high-resolution export are documented publicly.

9. Midjourney

Midjourney is not an interior rendering tool, but it appears in every search for one because its images are the best-looking on the internet. The subscription plans page sells GPU time, not renders, and the product has no concept of a floor plan or a wall you want to keep.

• Best for: Mood boards, material studies and style exploration before geometry is fixed.
• Inputs: Text prompts and reference images. No plan, sketch-fidelity or model mode.
• Price (checked Sept 2026): Basic $10/mo or $96/yr with 3.3 fast GPU hours; Standard $30/mo or $288/yr with 15 hours and unlimited relax images; Pro $60/mo and Mega $120/mo add stealth mode. Extra fast time is $4 an hour. No free tier.
• Pros: Highest image quality for open-ended prompts; unlimited relax-mode images from Standard up; general commercial terms for every subscriber.
• Cons: Cannot hold your geometry, so it is unusable for showing a client their actual room; images are public unless you pay for Pro or Mega; companies above $1M revenue must buy Pro or Mega. See our full write-up on Midjourney for architecture below.

10. Veras

Veras by EvolveLAB is the plugin-first choice. The product page lists supported versions for SketchUp 2021–2025, Revit 2019 onward, Rhino, Archicad 28 and Vectorworks 2024–2025, plus a web app for image input, and describes a geometry override slider and render-from-same-seed for consistent iterations.

• Best for: Architects and designers who live inside Revit, SketchUp, Rhino or Archicad and want AI renders from the current view.
• Inputs: The active viewport of a supported authoring app; images in the web app.
• Price (checked Sept 2026): Named licence $59/mo monthly or $29/mo billed yearly ($348); floating licence $51/mo billed annually ($612); student licence $12.42/mo billed annually ($149). Free trial: 30 renders over 15 days.
• Pros: Five authoring integrations; same-seed rendering; geometry slider; per-seat pricing with no render counting; a real student price.
• Cons: The plugin path needs a model; no floor plan or sketch input; monthly billing is double the annual rate; render speed is not published.

We compare the two directly in Render a House vs Veras.

11. MyArchitectAI

MyArchitectAI sells one thing clearly: unlimited renders. Its pricing page puts unlimited renders, edits and enhancer on every paid plan, and is equally clear about what it does not take: floor plans, line drawings and hand sketches are listed as unsupported.

• Best for: Studios rendering many stills a week from CAD or model exports who want a flat fee.
• Inputs: Exports and screenshots from CAD and modelling tools; not floor plans, line drawings or hand sketches (vendor statement).
• Price (checked Sept 2026): Starter $29/mo or $290/yr for one seat with 4K downloads and 10 GB storage; Studio $49/mo or $490/yr adds 50 animations a month and 8K; Team $99/mo or $990/yr for five seats, 200 animations and 500 GB. 10 free renders to start.
• Pros: No per-render accounting; 4K on the entry plan and 8K above; browser-based with no local GPU; five seats on Team.
• Cons: Requires model geometry; explicitly rejects the sketch and plan inputs interior designers start with; render speed is not published.

12. Spacely AI

Spacely AI is the closest thing to a middle ground between the plugin tools and the photo tools. Its pricing page lists SketchUp, Revit, AutoCAD and Rhino integrations on every paid plan, a free tier with all features, and queue-based speed tiers.

• Best for: Interior designers on SketchUp or Revit who also need to restyle photos and sketches.
• Inputs: Plugin captures from SketchUp, Revit, AutoCAD and Rhino; photos and sketches in the web app.
• Price (checked Sept 2026): Free: 40 trial credits with all features, private mode, commercial licence and no watermark; Personal $25/mo or $20/mo billed yearly ($240) for 500 credits, about 250 renders; Studio $50/mo or $40/mo yearly for 1,500 credits and 2 seats; Agency $100/mo or $80/mo yearly for 3,500 credits and 5 seats. Top-ups from $9 for 200 credits, subscribers only.
• Pros: Cheapest entry among the plugin tools; free plan without a watermark; credits stack and top-ups never expire; multi-seat plans; API on Agency.
• Cons: Standard queue is about five minutes per result, with under-one-minute lightning speed reserved for higher tiers; 4K download and Realistic Render are marked as Pro features; floor plan input is not listed.

Compare per image, not per month. A $19 plan with 30 credits (ReimagineHome Essential) is $0.63 a render; a $19 plan with 200 renders (Homestyler Starter, annual) is under $0.10; unlimited (MyArchitectAI Starter) is $29 divided by your volume. Every figure below is the vendor's list price, checked Sept 2026.

Render a House figures come from the same constants as our pricing page. Competitor prices are a September 2026 snapshot; click through before quoting a client.

If you are torn, ask whether the image must be the room the client is paying for; our Midjourney for architectural rendering article shows where prompt-only tools stop.

None of these twelve tools, ours included, produces a measured drawing. If a client asks whether the sofa fits, the answer comes from the plan, not the render.

Photo-first tools cannot help before the room exists. Homestyler, Collov, RoomGPT and ReimagineHome need a photograph, so they are useless at schematic design and best at staging and refresh work.

Model-first tools cannot help before the model exists. SketchUp Diffusion, the Veras plugin and MyArchitectAI expect geometry, and MyArchitectAI rules out sketches and plans in writing, so they arrive after the concept decision they were meant to inform.

Render a House is not a BIM or CAD replacement or a real-time engine, and has no team account, offline mode or native mobile app. Geometry can shift on openings, roof lines and thin elements, and a heavy input can take about two minutes. If you need walkthroughs at 60 frames a second, look at AI alternatives to Enscape and Lumion and pick a real-time engine.

Midjourney cannot keep your walls where you drew them, and RoomGPT does not publish its price, quota or licence. Both are reasons to keep them off a client-facing workflow.

• Best AI rendering tools for architects covers the exterior and whole-building side of the same market.
• AI virtual staging apps goes deeper on Collov, ReimagineHome and the listing workflow.
• Sketch to photorealistic render with AI is the step-by-step for the input most tools here reject.
• Change materials in a render with AI shows area editing on a finished interior.
• AI render tools for small studios on a budget does the per-seat versus per-credit math for a five-person office.
• 2D image to 3D model is the route when a client wants to orbit the room, not just see one view.