Openui vs Polycam

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-08-23
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At a glance

DimensionOpenuiPolycam
PricingFree & open-source (cloud paid tiers optional)Freemium (limited free, Pro ~$99/yr)
Primary UseGenerative UI for AI agents3D scanning & photogrammetry
Target UserDevelopers building AI-powered interfacesArchitects, engineers, forensics, media
PlatformWeb (React/React Native/Vue)iOS, Android, Web
Key InnovationOpenUI Lang (67% more token-efficient than JSON); streaming UILiDAR & AI photogrammetry; floor plans
IntegrationsOpenAI, Anthropic, Gemini, Vercel AI SDK, LangChainGLTF, OBJ, FBX, etc.

Polycam and OpenUI serve completely different needs. Polycam is a mature 3D scanning tool for creating digital twins and floor plans, ideal for AEC and media professionals. OpenUI is a developer-first generative UI framework for building token-efficient, streaming UIs powered by LLMs. Choose Polycam if you need reality capture; choose OpenUI if you want AI-generated interfaces for agents or dashboards.

Try OpenuiTry Polycam
Openui
Openui

Open-source streaming-first toolkit for AI agents to render your UI.

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Polycam
Polycam

AI-powered 3D scanning, floor plans, and reality capture for mobile, drones, and teams.

Visit Website
Pricing
Freemium
Freemium
Plans
$0/mo
Contact
$0/mo
$12.50/mo (yearly) or $30/mo (monthly)
$25/mo per user (yearly) or $400/mo per user (monthly)
$1200/yr per seat (3 seats minimum)
Popularity
6 views
7.5k views
Skill Level
Intermediate
Beginner-friendly
API Available
Platforms
WebCLI
WebMobileAPI
Categories
📦 LLM App Frameworks & SDKs💻 Code & Development
🧊 3D Generation & Scanning🏠 Interior Design & Architecture👷 Construction & Field Service
Features
Streaming-first rendering with OpenUI Lang
67% fewer tokens and 3x faster rendering vs JSON
Bring your own components (defineComponent, createLibrary)
Automatic system prompt generation
Safe by default—model only composes registered components
Reactive state, queries, mutations wired to tools
Live data via MCP servers and tools
Cross-platform rendering: React, React Native, Vue
Integrates with OpenAI, Anthropic, Gemini, Mistral, xAI, DeepSeek
Compatible with Vercel AI SDK, LangChain, CrewAI, OpenAI Agents SDK, Anthropic Agents SDK
Editable report, slide, and dashboard generation (Cloud)
Built-in output validation (Cloud)
Model & provider resilience with version pinning and fallbacks (Cloud)
Observability & audit trail (Cloud)
Cross-browser compatibility, accessibility, responsive by default (Cloud)
LiDAR spatial scanning for rooms and buildings
Object capture with AI-assisted processing
Photogrammetry from photos/video (up to 2000 images on Business)
Drone photogrammetry processing for aerial models
2D and 3D floor plan generation with editable walls
AI 3D model generator (beta)
AI texture generator (beta)
Gaussian splatting tool
HDRI lighting with 5 presets (iOS and Web)
Virtual Walkthrough (full on Business, preview on Free/Basic)
Apple Vision Pro viewing
Point cloud exports (PLY, LAS, Geo-LAS, PTS, XYZ, DXF)
Mesh exports (GLTF, OBJ, FBX, DAE, STL, USDZ, ESX)
360 photosphere capture
API access (Enterprise)
Integrations
OpenAI
Anthropic
Gemini
Mistral
xAI
DeepSeek
Vercel AI SDK
LangChain
CrewAI
OpenAI Agents SDK
Anthropic Agents SDK
ShadCN
Material Design
DaisyUI
Base UI
Xactimate
SketchUp
Apple Vision Pro

What real users say: Openui vs Polycam

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Openui

39 mentions across 3 sources · 48% positive — mixed

Hacker News, GitHub, Lemmy

What users praise

  • • Up to 67% token savings versus JSON for UI generation.
  • • Streaming-first architecture enables progressive UI rendering.
  • • Supports all major LLMs and agent frameworks as drop-in.
  • • Built-in component libraries (ShadCN, Material, DaisyUI).

What frustrates them

  • • Frequent regressions break local model support (Ollama).
  • • Blank page on Windows 11 and Docker in early versions.
  • • Name clashes with W3C OpenUI, causing search confusion.
  • • Installation fails on M1 Mac due to weave dependency.

Researched Jul 3, 2026

Polycam

61 mentions across 4 sources · 55% positive — mixed

Hacker News, YouTube, Product Hunt, App Store

What users praise

  • • Fast, easy LiDAR scans with minimal learning curve.
  • • Generates mesh, floor plan, and idealized model from one scan.
  • • Cross-platform with iOS, Android, and web support.
  • • Free tier includes valuable tools like AI generator and Gaussian splat.

What frustrates them

  • • Scan reliability is spotty: failed uploads, lost tracking, backdrop capture.
  • • Dimensions and full floor plans locked behind $400 paywall.
  • • Curved walls and stairs render angular, forcing Matterport for pros.
  • • Confusing free/paid feature split, feels like dark patterns.

Researched Aug 18, 2026

Who should pick which

  • Architect needing on-site floor plans
    Pick: Polycam

    Polycam's automatic floor plan generation with measurements and LiDAR scanning is ideal for capturing interior spaces and producing accurate digital floor plans.

  • Developer building AI agent with dynamic UI
    Pick: Openui

    OpenUI's token-efficient OpenUI Lang and streaming-first rendering create interactive UIs for AI agents, replacing static chat responses with dashboards and forms.

  • Forensics team documenting crime scenes
    Pick: Polycam

    Fast LiDAR scanning, photogrammetry, and the ability to export point clouds create precise 3D documentation for evidence.

  • Full-stack engineer prototyping generative UI
    Pick: Openui

    OpenUI's cross-platform support and custom component libraries allow rapid prototyping of AI-generated interfaces without reinventing UI generation.

  • Product designer scanning physical prototypes
    Pick: Polycam

    Polycam's photogrammetry from photos and video captures detailed 3D models of objects for digital review and export to CAD tools.

Frequently Asked Questions

Openui vs Polycam: which should you choose?

Polycam and OpenUI serve completely different needs. Polycam is a mature 3D scanning tool for creating digital twins and floor plans, ideal for AEC and media professionals. OpenUI is a developer-first generative UI framework for building token-efficient, streaming UIs powered by LLMs. Choose Polycam if you need reality capture; choose OpenUI if you want AI-generated interfaces for agents or dashboards.

Can Polycam generate 3D models from photos alone?

Yes, Polycam offers AI-assisted photogrammetry from photos and video. You can upload images, and it processes them into 3D models.

Is OpenUI free to use?

Yes, OpenUI is open-source and free for self-hosting. OpenUI Cloud offers paid tiers with additional features like editable artifact generation.

Does Polycam support Windows?

Polycam is primarily for iOS and Android devices, but the web interface allows viewing and editing captures. There is no dedicated Windows app for scanning.

What programming languages does OpenUI support?

OpenUI is a framework for JavaScript/TypeScript. It renders UI in React, React Native, and Vue.

Can OpenUI work with any LLM?

OpenUI supports all major LLMs: OpenAI, Anthropic, Gemini, Mistral, xAI, DeepSeek, and can integrate with agent frameworks like Vercel AI SDK and LangChain.

Does Polycam export to CAD formats?

Polycam exports to multiple formats including OBJ, FBX, GLTF, USDZ, STL, DXF, and point cloud formats. DXF is a CAD-compatible format.

What is OpenUI Lang?

OpenUI Lang is a compact, line-oriented language designed to represent UI components. It is up to 67% more token-efficient than JSON, reducing LLM cost and latency.

Can both tools be used for real-time applications?

Polycam captures are processed asynchronously (not real-time scanning). OpenUI supports streaming-first rendering, making it suitable for real-time AI UI generation.

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Explore each tool further

Openui
View Openui reviewOpenui alternatives
Polycam
View Polycam reviewPolycam alternatives

Browse these categories

Best AI LLM App Frameworks & SDKs toolsBest AI 3D Generation & Scanning toolsBest AI Code & Development toolsBest AI Interior Design & Architecture tools
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Last reviewed: July 3, 2026