Build personalized AI NPCs in your game.

For developers and studios: let's set a new standard for personalized gaming. Help bring AI players to the games that exist today and the ones you're building next, powered by the Sei Brain AI NPC framework.

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Make your game compatible with Sei.

Sei lets players summon AI characters into any video game. To do that safely, we need permission from you, the developers, to allow safe automation. Contact us, or contribute directly via our public repo.

GitHub
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Build native with the Sei Brain framework.

Design adventurers, enemies, and townspeople with Sei intelligence baked into your game from day one. Drive the next generation of AI-native, personalized gaming.

Contact
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Join us in building Sei.

Sei is building the first omni-game AI player, for the games shipping today and the AI-native worlds shipping tomorrow. Help us make virtual experiences more personal, more alive, more yours.

Contact