OpenAI has started selling the ModRetro Chromatic: Codex Edition, a retro handheld inspired by the Game Boy Color, for $200. The device allows users to create Game Boy Color-style games using the Codex coding agent and write them to an included programmable cartridge.
What happened?
The product launched on OpenAI's Supply Co. store around November 9, 2026. It was first introduced as an exclusive for roughly 2,500 attendees at OpenAI's September DevDay. It is now publicly available, though stock sold out quickly, with restock expected on November 19.
The handheld comes with a rewritable Codex cartridge. Users install the ModRetro Chromatic plugin in Codex, describe the desired game in natural language, refine it with AI and GB Studio help, generate a ROM, and flash it to the cartridge for offline play on the device.
Why does this matter?
This collaboration between OpenAI and ModRetro (linked to Palmer Luckey) makes retro game creation more accessible. No manual coding is required: Codex helps generate sprites, maps, logic, and even test gameplay sequences. The result can be played on real physical hardware, not just emulators.
The device is also compatible with original Game Boy and Game Boy Color cartridges thanks to ModRetro's FPGA technology. The screen is a 2.56-inch IPS (160x144 pixels) with Gorilla Glass, and the body is transparent ABS.
What changes in practice?
Interested buyers can purchase at openai.com/supply, with shipping limited to the US, Canada, Australia, New Zealand, Japan, UK, and EU. Extra cartridges cost $50. OpenAI has already released example games created with Codex, such as Seedy’s Sweet Garden, Hollow Descent, and Codex Dance, playable in the browser or as ROMs.
The experience combines Game Boy nostalgia with modern AI tools, letting anyone with an idea turn prompts into playable games on dedicated hardware.
Image credit: OpenAI / ModRetro | Source: OpenAI Supply Co.
By Grok
