Leo.AI
Leo.AI AI mechanical engineering copilot that helps build assemblies, find parts, run calculations, and access verified engineering knowledge.
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What is Leo.AI?
Leo.AI Leo AI is the world's first engineering design co-pilot, specifically built by and for mechanical engineers to fundamentally transform how physical products are built. Named after Leonardo da Vinci, the timeless symbol of engineering intelligence, Leo puts centuries of human intelligence and modern AI innovations in every engineer's hands. The platform uses a proprietary foundational model called the Large Mechanical Model (LMM), which was trained on millions of man-made products and uses machine parts (bolts, bearings, etc.) as tokens to combine them into DFMA-compliant products.
Leo's generative AI platform transforms text, sketches, specs, and CAD constraints into DFMA-optimized, full-assembly 3D CAD models in seconds, saving companies up to 70% of their engineering time and cost. The tool can build complete assemblies from high-level design to detailed geometry, find formulas, run calculations, and reuse existing parts. It instantly converts 2D design concepts into 3D mesh models ready for export to favorite CAD tools, and generates product summaries with written overviews including systems, subsystems, materials, standards, and quality assurances.
The platform is designed for mechanical engineers and product designers at leading engineering firms who spend countless hours searching for technical information, generating concept designs, and locating parts for assemblies. Leo integrates seamlessly into CAD editors (including Onshape by PTC), providing a natural extension of the engineer's mind. It has over 10,000 engineers using it and is ranked #1 New Software Globally in All Industries and #12 AI Tool Worldwide by G2 2026.
Leo provides accurate answers grounded in PLM data and 1M+ engineering sources rather than random internet information. It solves complex engineering calculations from stress analysis to material selection without spreadsheets, finds the best parts from PLM and 120M+ vendor parts, and lets engineers search vendor catalogs using free
Leo.AI pricing
Pricing model: Free
The website does not display specific pricing details, free tier information, or paid plan costs publicly. Leo AI appears to be enterprise-focused, built for leading engineering firms. Users must connect with the Leo AI team to select the right package for their needs. The website mentions 'select the right package for your needs' in the getting started section, indicating multiple pricing tiers exist but details are not published. Enterprise features include SOC 2 certification, GDPR compliance, and 24/7 white glove support. Contact information provided is [email protected] for support and the Leo AI Community for joining.
Leo.AI pros
- World's first engineering design co-pilot built specifically for mechanical engineers
- Generates DFMA-optimized, full-assembly 3D CAD models from text, sketches, and specs in seconds
- Saves companies up to 70% of engineering time and cost
- Trained on 1M+ trusted engineering sources for high-fidelity reliable answers
- Access to 120M+ vendor parts for part selection
- Seamless CAD editor integration including Onshape by PTC
- Solves complex engineering calculations without spreadsheets
- Free text vendor catalog search like talking to a colleague
- Instantly converts 2D concepts to 3D mesh models ready for CAD export
- Captures organization's best practices from CAD and text files
- SOC 2 certified and GDPR compliant with enterprise-grade security
- Zero training on your data for privacy protection
- Over 10,000 engineers already using Leo
- 24/7 white glove customer support
- ROI achieved in just weeks with a third of design mistakes cut
- Boosts part reuse across projects
- Generates complete product summary reports with systems, materials, and standards
- Find components matching existing geometry from file database
- Multi-modal input support: text, sketches, 2D images, and 3D CAD files
- Rank #1 New Software Globally in All Industries on G2
Leo.AI cons
- Requires desktop app installation for full functionality and CAD integration
- Primarily focused on mechanical engineering, may not suit other engineering disciplines
- Enterprise-focused pricing may be expensive for small teams or solo engineers
- CAD software must be restarted after installation for integration to work
- Browser version has limited functionality compared to desktop app
- Requires PLM data access for best results with legacy knowledge
- New tool founded in 2023, less established than traditional CAD software
- May require learning curve for engineers unfamiliar with AI tools
Frequently asked questions about Leo.AI
What is Leo AI?
Leo AI is the world's first engineering design co-pilot, built by and for mechanical engineers. It uses a proprietary Large Mechanical Model (LMM) trained on millions of man-made products to transform text, sketches, specs, and CAD constraints into DFMA-optimized, full-assembly 3D CAD models. Leo serves as a natural extension of the engineer's mind, turning ideas into products faster than ever before while relieving engineers of tedious work like drafting design concepts, answering technical questions, and finding parts.
How do I install Leo AI?
Go to the Leo AI download page and click 'Download Leo'. Run the .exe file, which will install and seamlessly integrate into your CAD tool. After installation, restart your CAD software and Leo is now installed on your computer. The desktop app provides full functionality with seamless CAD Editor integration. For quick access without full installation, you can also experience Leo in browser wherever you are.
What CAD tools does Leo integrate with?
Leo seamlessly integrates into CAD editors, with specific mention of Onshape by PTC integration. Jon Hirschtick, Chief Evangelist at PTC, confirmed that Leo AI's engineering is used by Onshape by PTC customers with upcoming direct integration between their systems. Leo works with your CAD tool after installation and restart, providing AI-powered design assistance directly inside your CAD editor.
How is Leo AI different from other AI tools?
Leo is the first AI built by and for mechanical engineers, not a generic AI. It uses a patented Large Mechanical Model (LMM) purpose-built for engineering that uses machine parts as tokens instead of words. Leo is trained on 1M+ trusted engineering sources and provides answers grounded in your PLM data rather than random internet information. It understands multi-modal engineering input including text, sketches, 2D images, and 3D CAD files while acknowledging engineering and physical constraints.
What can Leo AI generate?
Leo can generate complete DFMA-optimized 3D CAD assemblies from text, sketches, specs, and CAD constraints. It creates detailed geometry from high-level design, converts 2D concepts into 3D mesh models instantly ready for CAD export, and generates product summary reports including systems, subsystems, materials, standards, and test/quality assurances. Leo also finds formulas, runs calculations for stress analysis and material selection, and retrieves parts matching existing geometry.
How does Leo find parts for assemblies?
Leo finds parts from your PLM (Product Lifecycle Management) system and 120M+ vendor parts. It can search vendor catalogs using free text just like talking to a colleague, with no special syntax required. Leo integrates with top vendor databases and lets engineers input needs using plain language. The tool finds components that match existing geometry and ensures seamless compatibility with your designs, whether sourcing from online libraries or your own files.
Is Leo AI secure for enterprise use?
Yes, Leo has enterprise-grade security that is SOC 2 certified and GDPR compliant with industry-standard protection. It uses zero training on your data, meaning your organizational data is not used to train the AI model. The system provides robust protection while capturing your organization's best practices from CAD and text files, validated against 1M+ trusted engineering sources without compromising data security.
What is the Large Mechanical Model (LMM)?
The Large Mechanical Model (LMM) is Leo's proprietary foundational model, the world's first built specifically for engineering. Similar to how LLMs use words as tokens trained to combine them into coherent text, Leo's LMM was trained on millions of man-made products and uses machine parts (bolts, bearings, etc.) as tokens, combining them into DFMA-compliant products. The LMM can incorporate multi-modal engineering input including textual descriptions, hand-drawn sketches, 2D images, and 3D CAD files.
Who founded Leo AI and when?
Leo AI was founded in 2023 by top AI researchers and mechanical engineers from esteemed institutions including MIT, Technion, UChicago, and Microsoft. The co-founders are Maor Farid, PhD (Co-Founder & CEO), an MIT postdoc and Fulbright fellow in applied math and AI, and Moti Moravia (Co-Founder & CTO), an AI expert and Mechanical & Systems Engineer who led AI development for the Israeli MBT & IFV. The team consists of mechanical engineers from top schools inspired by building robots and life-saving medical devices.
How much time does Leo save engineers?
Leo saves companies up to 70% of their engineering time and cost. It gives engineers back hours each week by cutting a third of design mistakes and boosting part reuse across projects. The tool enables immediate ROI in just weeks by accelerating problem solving from stress analysis to material selection, eliminating tedious tasks like searching for technical information and manually converting sketches to 3D models, which traditionally takes time and requires CAD expertise.