Seph
Speak worlds into existence
Free · Designed for iPad. Not verified for macOS.
Speak your worlds into existence.
Seph is a conversational creative collaborator for anyone building creative IP. Novelists, screenwriters, filmmakers, game designers, worldbuilders, and the next generation of creators finding their voice. Seph works alongside you, listening and thinking and taking notes, and captures your world, your characters, your voice, and your creative vision into a private AI model that belongs entirely to you.
While AI can generate content faster than any human, it isn't good at originating authentic creative vision. AI produces variations. It remixes. The world, the rules, the voice; these still come from you. Seph is built on that belief.
Seph engages you in conversation about your story ideas. These conversations become a living record of your world: characters, settings, scenes, plot, tone, thematic intent. Over time, Seph builds custom models of your creative IP that you can return to, expand, and work with across projects. The models are "living worlds", dynamic embodiments of your imagination.
WHAT YOU CAN DO WITH SEPH
- Have open-ended creative conversations about your work, by voice or text
- Develop characters, worlds, plots, and tone through dialogue
- Capture notes automatically as you think out loud
- Train private AI models on your own creative material
- Export notes to Google Sheets and other destinations
- Work across sessions with full context preserved
PRIVATE BY DESIGN
Models trained from your work are yours. Your models are private to your account. We do not use your content to train general models, and we do not share your creative material with anyone. Third-party AI providers we work with are contractually prohibited from training on your content.
EARLY ACCESS
Seph is currently in early access and free to use. Paid features, including model training credits, are available for creators ready to go deeper. We're building Seph with and for creators at every stage, from established professionals to emerging voices. Your feedback shapes what comes next.
ABOUT THE SUPERPOSITION
The Superposition is an AI-first entertainment company building at the intersection of creative intelligence and ownership. We believe the future of entertainment will be built on author-owned AI models. Living IP that powers creatives and studios alike.
Questions, feedback, or partnerships: support@thesuperposition.ai
Ratings & Reviews
New support for training character models with context clues.
The developer, The Superposition, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- The Superposition, LLC
- Size
- 8.9 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.5 or later.
- iPhone
Requires iOS 18.5 or later. - iPad
Requires iPadOS 18.5 or later. - Mac
Requires macOS 15.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.5 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Infrequent
Profanity or Crude Humor
Horror/Fear Themes
Alcohol, Tobacco, Drug Use or References
- Copyright
- © 2026 The Superposition, LLC