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Pi vs Backyard AI
Pi edges Backyard AI on our editorial score (4.0 vs 3.7), but Pi is the stronger pick if you want live voice calls, while Backyard AI fits better if custom characters matter more.
0| Pi0 | Backyard AI0 | |
|---|---|---|
| Editor score | 4.0 / 5 | 3.7 / 5 |
| Price | Free | Free |
| Price band | Free | Free |
| Free tier | Yes | Yes |
| Price detail | Free, with no usage limit and no paid tier — no card required. | Free; runs models locally. |
| Adult content | No adult mode | Optional mature mode |
| Voice | Live calls | No |
| Images | No | No |
| Video | No | No |
| Memory | Yes | Yes |
| Custom characters | No | Yes |
| Companion types | Any character | Any character |
| Platforms | Web, iOS, Android | Desktop, Web |
| Runs locally | No | Yes |
Pi — our take
Completely free, genuinely warm, and no upsell wall. Not a roleplay product, but an excellent listener.
- Entirely free with unlimited voice
- Consistently rated the most empathetic free model
- No ads
Backyard AI — our take
Free, offline and surprisingly good at persona consistency for a local app.
- Completely free
- Works offline
- Character creator is well made
Pi vs Backyard AI — common questions
Which is cheaper, Pi or Backyard AI?
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?
Pi: No adult mode. Backyard AI: Optional mature mode. This directory is SFW — we record whether a mature mode exists so you know before signing up, and we describe no explicit material.