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SillyTavern vs Spheria
SillyTavern edges Spheria on our editorial score (4.3 vs 3.5), but SillyTavern is the better fit if you want live voice calls and image sharing; Spheria has no clear edge there.
0| SillyTavern | Spheria | |
|---|---|---|
| Editor score | 4.3 / 5 | 3.5 / 5 |
| Price | Free | Free |
| Price band | Free | Free |
| Free tier | Yes | Yes |
| Price detail | Free and open source under AGPL-3.0. You pay only for whichever model API you connect. | Free to create a clone; pro options exist with no public price list (2026-09-30). |
| Adult content | Optional mature mode | No adult mode |
| Voice | Live calls | No |
| Images | Yes | No |
| Video | No | No |
| Memory | Yes | Yes |
| Custom characters | Yes | Yes |
| Companion types | Any character | Any character |
| Platforms | Desktop, Web | Web |
| Runs locally | Yes | No |
SillyTavern — our take
If you want total control and zero subscription, this is where the advanced users live.
- Complete control over prompt and memory
- Works with local or hosted models
- Free forever
Spheria — our take
A personal AI twin: feed it your answers and it speaks with your voice and story on your own page.
- Simple clone setup
- Shareable public page
- Free tier
SillyTavern vs Spheria — common questions
Which is cheaper, SillyTavern or Spheria?
They cost the same on our recorded numbers (Free).
Which one has a free tier?
Both do — you can try either without paying.
Which remembers conversations better?
Both keep context across sessions. The practical difference is elsewhere: voice support differs between them.
Which handles adult content differently?
SillyTavern: Optional mature mode. Spheria: No adult mode. This directory is SFW — we record whether a mature mode exists so you know before signing up, and we describe no explicit material.