Home / Compare
Pi vs Chai
Pi edges Chai on our editorial score (4.0 vs 3.8), but Pi is the stronger pick if you want live voice calls and long-term memory, while Chai fits better if voice notes or custom characters matter more.
0| Pi0 | Chai0 | |
|---|---|---|
| Editor score | 4.0 / 5 | 3.8 / 5 |
| Price | Free | $11.25/mo |
| Price band | Free | $10–20/mo |
| Free tier | Yes | Yes |
| Price detail | Free, with no usage limit and no paid tier — no card required. | Premium ~$13.99/mo or $134.99/yr; Ultra ~$29.99/mo. Free tier: ~70 messages per 2.5 hours. |
| Adult content | No adult mode | Optional mature mode |
| Voice | Live calls | Voice notes |
| Images | No | No |
| Video | No | No |
| Memory | Yes | No |
| Custom characters | No | Yes |
| Companion types | Any character | Any character |
| Platforms | Web, iOS, Android | iOS, Android |
| Runs locally | No | No |
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
Chai — our take
Low-friction and cheap to try, but the free message cap makes Premium near-essential.
- Huge bot library
- Very easy to start
- Cheaper annual plan
Pi vs Chai — common questions
Which is cheaper, Pi or Chai?
Pi is the cheaper of the two at Free, against $11.25/mo for Chai.
Which one has a free tier?
Both do — you can try either without paying.
Which remembers conversations better?
Pi retains context across sessions; Chai keeps context only within a session.
Which handles adult content differently?
Pi: No adult mode. Chai: 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.