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Build3 vs Bolt
Bolt puts an AI coding agent in the browser, next to the files. Build3 takes a description and hands you a website or a game you can preview and publish.
Where Bolt fits
Bolt is for people who want to watch the code get written and change it themselves. If you are comfortable in a project full of files, that is the point of it.
Where Build3 fits
Build3 is the other shape of the job. You say what the website or game should do. The preview is what you judge it by. When it is ready, you publish a build3.site link or connect your own domain.
You do not start with an empty editor. You start with a prompt, and you pay in credits. There is no subscription, and credits do not expire.
Which to open
Open Bolt if you want the code in front of you. Open Build3 if you want the finished website or game, including a game someone can play from a link.