Most AI forgets you the moment you close the tab. Sphinx doesn't. Build your own private agent — give it a role, a voice, a memory — and it works for you, remembering everything you've ever told it.
Free to start. No card required.
Give your agent a name, a role, and a personality. A sales closer, a chief of staff, a study partner — whatever you need.
Chat naturally. It answers in the voice you gave it, and every conversation is remembered — nothing re-explained.
The more you use it, the more it knows you. Your agent becomes genuinely yours — a private mind that grows with you.
Start free. Upgrade when your agent becomes indispensable.