Character.AI
4.4
Millions of community characters with unlimited free text chat
The default starting point: unmatched variety and the most generous free tier in the category.
$7.92/mo音声通話記憶+3
Piの代替
Piの代わりに検討する価値のある8件のサイト。掲載カテゴリから抜粋し、編集スコア順に並べています。 参考までに、Piの料金はFreeです。
| サイト | 価格 | 無料プラン | 音声 | 記憶 | |
|---|---|---|---|---|---|
| Character.AI Millions of community characters with unlimited free text chat | $7.92/mo | あり | 音声通話 | あり | 比較 |
| SillyTavern The self-hosted frontend the power users all run | Free | あり | 音声通話 | あり | 比較 |
| Nomi AI Memory that survives months, across up to ten companions | $8.33/mo | あり | 音声通話 | あり | 比較 |
| Replika The original AI friend, built around emotional connection | $5.83/mo | あり | 音声通話 | あり | 比較 |
| SoulChat Six hand-written companions with long-term memory, free to try without an account | $9.99/mo | あり | 音声メッセージ | あり | 比較 |
| Coze ByteDance’s no-code bot builder | $9/mo | あり | なし | あり | 比較 |
| DeepSeek An open-weight model with a surprisingly strong free chat | Free | あり | なし | あり | 比較 |
| ChatGPT Memory, voice mode and the strongest general model | $20/mo | あり | 音声通話 | あり | 比較 |
SillyTavern
4.3
The self-hosted frontend the power users all run
If you want total control and zero subscription, this is where the advanced users live.
Free成人向け音声通話+5
Nomi AI
4.2
Memory that survives months, across up to ten companions
The memory benchmark. If continuity is your main requirement, this is the one to beat.
$8.33/mo成人向け音声通話+4
Replika
4.1
The original AI friend, built around emotional connection
Still the strongest product for people who want one companion and a real feeling of continuity.
$5.83/mo音声通話記憶+2
SoulChat
未評価
Six hand-written companions with long-term memory, free to try without an account
A deliberately hand-authored cast of six rather than a community character library — you trade variety for characters that keep one consistent voice.
$9.99/mo成人向けボイスメモ+4
Coze
4.3
ByteDance’s no-code bot builder
Build and ship custom AI chatbots to 8+ channels with plugins and workflows — a create-your-own toolkit, not a fixed companion.
$9/mo記憶画像+1
Piからの乗り換え — よくある質問
What are the best alternatives to Pi?
8 sites from the same categories are listed above, ordered by our editorial score. We match on category rather than on marketing claims, so what you see is what competes with Pi for the same use case.
Is there a free alternative to Pi?
Yes — Character.AI, SillyTavern, Nomi AI, Replika, SoulChat, Coze, DeepSeek, ChatGPT have a free tier you can use before paying anything.
How much does Pi cost compared with the alternatives?
Pi is Free. The alternatives above range from $0 to $20 a month.