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Seth Karten on X: "Gemini Plays Pokémon discovered something about agent harnesses. Continual Harness automates it." / Twitter

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To view keyboard shortcuts, press question mark View keyboard shortcuts Home 2 Notifications Chat Bookmarks Articles Profile More Tweet Tim Kostolansky @thkostolansky Tweet See new posts Conversation Florian Brand reposted Seth Karten @sethkarten Gemini Plays Pokémon discovered something about agent harnesses. Continual Harness automates it. 1 13 65 4.1K Long-horizon embodied agency is a harness problem rather than a model-scale problem. Coding agents already work this way. Claude Code and OpenHands are scaffolding around the model (prompt, skills, memory, sub-agents), and that scaffolding is most of what makes them useful. Embodied agents have not had an equivalent, which is why a frontier vision-language model playing Pokémon Red through a raw screenshot-and-buttons interface barely makes it past the first town. Gemini Plays Pokémon (GPP), led by my co-author Joel Zhang, was the first AI system to complete Pokémon Blue, Yellow Legacy on hard mode, and Crystal without losing a battle.

Seth Karten @sethkarten Gemini Plays Pokémon discovered something about agent harnesses. Continual Harness automates it. 3:08 PM · May 13, 2026 31.5K Views 7 0 7 31 0 3 1 236 0 2 3 6 300 0 3 0 0

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