Hiroki Tomiyasu (@tomiyasu16), a farmer in Hokkaido, Japan who grows broccoli and other crops, is drawing attention for automating and streamlining the operation of his roughly 100-hectare farm almost single-handedly using OpenAI's ChatGPT and the coding agent "Codex." On June 5, 2026, OpenAI's official ChatGPT account introduced him as someone "running his farm in Japan with ChatGPT and Codex," linking to a Substack article detailing his work, "A broccoli farmer in northern Japan shares his chats."
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