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Soulthread
AI companions with long-term memory, voice, and evolving stories.
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Product Overview
Soulthread is a memory-driven interactive narrative platform for adults (18+) that pairs persistent AI characters with text and voice conversations. Instead of treating each chat as disposable, it uses layered long-term memory so characters retain important context, preferences, shared experiences, and relationship history across sessions.
Beyond traditional chat, Soulthread supports two ways to play: Story Mode (consequence-driven interactive stories with branching plots) and Free Chat (talk with characters who remember). It’s designed for users who want long-term AI companionship, roleplay with consistent personalities, and story experiences shaped by meaningful choices—available through a mobile-friendly web experience.
Key features
- Layered long-term memory for AI characters to retain context and relationship history across conversations
- Two play modes: Story Mode for branching, consequence-driven narratives and Free Chat for persistent character conversations
- Multi-character story scenes where characters maintain consistent personalities as relationships develop over time
- Voice and text conversations that carry forward prior preferences and shared experiences
- Mobile-friendly web access, with iOS beta via TestFlight and downloadable app builds for supported devices
How Soulthread works
- 1
Choose Story Mode or Free Chat
A new user selects Story Mode for branching narratives or Free Chat to talk with characters who retain context.
- 2
Have a conversation or make choices
The user speaks or types, and in Story Mode, makes decisions that influence the direction and consequences of the story.
- 3
Continue later with persistent memory
When the user returns, the character continues with remembered preferences, context, and relationship history.
Use cases
- A user returns to the same AI companion after days and continues a conversation with the character referencing prior preferences, shared moments, and relationship history.
- A user chooses actions in Story Mode to steer an interactive narrative, where the story’s outcomes and relationships evolve based on decisions.
- A roleplayer or adult storyteller runs multi-character scenes and keeps personalities consistent so dialogues don’t reset to generic “disposable chat” behavior.
Who is it for?
Soulthread is for adults who want AI companions that remember across sessions and for users who prefer interactive roleplay and branching stories over one-off chat loops. It fits people who want both persistent character conversations and story experiences shaped by their choices.