The AI teammate that reads your whole Unity project before it touches a single line of code.
The ghost in the engine. Bezi's mascot loiters in your editor - not to haunt your build, but to read every script in it. San Francisco, founded 2021.
Open Unity at 2 a.m. and the engine stares back: a thousand scripts, a scene graph nobody fully remembers, a bug that only appears on Tuesdays. Most AI tools answer this chaos with a confident shrug - generic code for a generic problem they never bothered to read. Bezi does something quieter and stranger. It reads the whole thing first.
Bezi is a small San Francisco company building an AI assistant that lives inside the Unity game engine. It indexes a developer's project in real time - scripts, assets, scenes, packages - so when you ask it a question, it already knows what you are building. Then it can write code, generate shaders, build editor tools, trace a bug across your scene, and propose the change directly in the editor where you can review it or roll it back.
The pitch fits on a bumper sticker: AI for building real games, not generating them. It is a small distinction with a large attitude behind it. Bezi does not want to spit out a finished game from a prompt. It wants to sit beside the person making one.
That preposition - beside, not instead of - is the whole company. The market is loud with tools promising to conjure a playable game from a sentence. Bezi looks at that and politely declines. Games are not generated; they are debugged, re-tuned, thrown out, and rebuilt at 2 a.m. The interesting work is the messy middle, and that is exactly where Bezi plants itself. It is less a vending machine and more a colleague who happens to have read every file you own.
It's not offering generic solutions to generic problems. It's understanding your current implementation and augmenting it.- Thomas Brush, game developer & creator, on Bezi
Bezi follows interactions between scripts and scene objects to locate why something breaks - in context, across the whole project.
It writes scripts and shaders that match your existing architecture, because it has already indexed it.
Bezi can build editor tools and execute proposed changes directly in Unity, with change review and restore as a safety net.
Studios get project understanding that carries across the team, wrapped in SOC 2 enterprise-grade security.
The unlock underneath all four is the same: real-time indexing. Most assistants treat your project as a stranger they meet fresh each prompt. Bezi keeps a living map of your scripts, assets, scenes, and packages, and updates it as you work. Ask it why a character clips through a wall and it does not improvise a plausible answer - it reads the collider, the script that moves the rigidbody, and the scene where they meet, then tells you where the logic actually breaks. The difference between a guess and a diagnosis is context, and context is the entire product.
The origin is tidier than the present. Cecilia Uhr, Julian Park, and Denys Bastov met building spatial experiences at Oculus, where they hit the same wall every designer there hit: the tools for 3D were nothing like the tools that had made 2D design delightful. Figma had made UI design collaborative and fun. Nothing had done the same for the third dimension.
So in 2021 they built Bezi as a no-code, collaborative tool for designing and prototyping interactive 3D and spatial experiences. The thesis was accessibility - make 3D as approachable as a shared design file. In November 2023, Benchmark led a $13M round to push that vision further, with Uncork Capital and Designer Fund along for the ride and Benchmark's Chetan Puttagunta joining the board.
Designers don't want to have to learn a game engine like Unity just to explore ideas.- Cecilia Uhr, Co-founder
Then the ground shifted under everyone making software, and Bezi did the unglamorous, correct thing: it followed where the value moved. Rather than asking designers to leave Unity, it walked into Unity. The same instinct - reduce friction, respect the craft - simply found a sharper edge. The product today is an AI assistant that game developers actually keep open, endorsed organically across the Unity community by creators like Thomas Brush.
The Twitter handle is still @bezi_3d, a small fossil of the company it used to be. The ghost logo stayed too. The mission narrowed and got more honest: help people build better games through creative exploration and technical depth - not by generating output, but by augmenting the maker.
* Revenue is a third-party estimate, not company-confirmed.
If you're designing a product for designers, you need to have a designer on the founding team.- Cecilia Uhr, Co-founder
The audience runs from the solo indie working past midnight to the game designer leaping into independent development, up to studios that need an assistant which understands more than one person's corner of the codebase. Indie developers describe it as a tireless dev buddy. Studios value the shared, persistent project knowledge - and the SOC 2 certification that makes letting an AI read your whole project a defensible decision.
It is worth noticing how Bezi grew. Not through a billboard campaign, but through the slow, credible route: a developer tries it, it actually understands their mess, and they tell another developer. When the creator Thomas Brush called it "basically another AI team member that understands your entire Unity project," that was not an ad slot - it was a person who builds games for a living reporting what happened when he installed it. In a field crowded with demos that dazzle and disappoint, word of mouth from people who ship is the hardest currency to fake.
What makes Bezi genuinely different is restraint. It would be easy - and on trend - to promise the moon: type a wish, receive a game. Bezi instead promises something less cinematic and more useful. It will read your project, respect your architecture, propose a change, and let you reject it. The safety net is part of the pitch: every change Bezi applies in the editor can be reviewed and restored. An assistant that can edit your project is only welcome if it can also be told no.
Open Unity now. The thousand scripts are still there, the scene graph is still a maze, the Tuesday bug still lurks. The difference is the company keeping you company.
Bezi has read the maze. It traces the bug to the line that breaks it, drafts the fix in your style, and waits for you to say yes. The chaos did not disappear - chaos is the medium games are made of. What changed is that the maker is no longer alone in it at 2 a.m. The ghost was friendly all along.
Build better games through creative exploration and technical depth - not generic acceleration.- Bezi's mission, in its own words
Profile compiled from public sources. Figures marked as estimates are third-party and not company-confirmed.