This is basically the current state of AI coding when you put it in the hands of an actual software engineer. I had it build a display server and compositor around a minimal Wayland-like design, but using a ring-style protocol. It benchmarks around 10%+ faster across the board, with some areas doing considerably better, and uses Vulkan instead of GLES.
From there, it built a 2D graphics engine, GUI toolkit, Flexbox layout engine, font and PNG rendering, a 3D graphics engine, and an AV1 decoder. Most of the rendering is Vulkan-based, with CPU rendering used where it makes more sense. 437,000 LOC of C++ 1hr time.
This is how I make sure it actually understands what it’s building. I first develop the concept or algorithm, help it implement it in C++, and then have it write a short document explaining how the algorithm works. In this case, I take that documentation, give it to a fresh AI, and have it implement the same algorithm in a different programming language. 300+ LOC of Crystal Lang 2min time.
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Neither the design for the compositor nor the smart background erase brush exists in the wild. In fact, the background erase brush only exists in Photoshop and Affinity Photo. I couldn’t find any other image editor that has the same feature.
The 437K LOC only had 5 or 6 compile errors, no warnings, and the code is perfectly understandable and well commented. The 300+ LOC had no compile errors or warnings at all. In my opinion, the code quality of both is at the highest level.
From there, it built a 2D graphics engine, GUI toolkit, Flexbox layout engine, font and PNG rendering, a 3D graphics engine, and an AV1 decoder. Most of the rendering is Vulkan-based, with CPU rendering used where it makes more sense. 437,000 LOC of C++ 1hr time.
This is how I make sure it actually understands what it’s building. I first develop the concept or algorithm, help it implement it in C++, and then have it write a short document explaining how the algorithm works. In this case, I take that documentation, give it to a fresh AI, and have it implement the same algorithm in a different programming language. 300+ LOC of Crystal Lang 2min time.
Watch Screencast From 2026-08-08 17-24-54 | Streamable
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Neither the design for the compositor nor the smart background erase brush exists in the wild. In fact, the background erase brush only exists in Photoshop and Affinity Photo. I couldn’t find any other image editor that has the same feature.
The 437K LOC only had 5 or 6 compile errors, no warnings, and the code is perfectly understandable and well commented. The 300+ LOC had no compile errors or warnings at all. In my opinion, the code quality of both is at the highest level.
