Compare Fostera and Nomi AI — memory systems, progression, relationship types, and AI model flexibility.
| Feature | Fostera | Nomi AI |
|---|---|---|
| Memory system | Selective Soul and project memory that users can inspect, edit, and delete; relevance-based retrieval can miss details | Layered short-, medium-, and long-term memory plus searchable, editable Mind Map 2.0 |
| Visible progression | 9-tier evolution system | No directly comparable public nine-tier relationship system documented |
| AI models | Automatic routing; manual selection among eligible engines is Premium-only | Nomi-managed model stack rather than external-provider selection |
| Relationship types | 6 utility presets + custom | Primarily companionship/romance |
| Export and import | Nomi AI import: community. Nomi has no official export. Select JSON created by the compatible Nomi downloader extension. | Nomi has no official export; history depends on a community downloader extension |
| Free tier | Yes — 3 Souls with flexible monthly capacity for conversations, media, creations, analysis, voice, and automation | Nomi currently advertises free signup without a credit card; limits can change |
| Paid access | Core and Premium plans; check current checkout terms | Subscription options; check current checkout terms |
Nomi documents layered companionship-oriented memory, including an editable Mind Map. Fostera adds projects, utility roles, visible progression, and Premium manual engine selection. Both use selective retrieval, so test the memories that matter.
Want the deeper architecture? See how AI that remembers you actually works.
Or compare Nomi AI to the full AI companion category.
Content rules matter when you switch — read Fostera's published content policy.
Nomi AI import: community. Nomi has no official export. Select JSON created by the compatible Nomi downloader extension. Community export support is best effort. Group-room messages are grouped by room when room identifiers are present. User-profile extraction depends on what the conversation history reveals about the user.
Continue with context
Bring one project and the files that matter. Research with your Soul, save useful decisions, and come back to continue. There is room for companionship, growth, and play too.
Start with one projectFree to start · No credit card required
Necessary cookies power sign-in and core settings. If you allow, optional cookies support product analytics, enhanced preferences, and personalized marketing. Read our Cookie Policy or Privacy Policy.