ChatGPT Plus サブスク：chatgpt.com で加入、請求管理、Plus モデルアクセス
Get Plus → Billing 確認 → モデルピッカー → 同一アカウントで多端末。
chatgpt.com — ChatGPT Plus (~$20/mo, monthly). What is Plus? · Billing · Models in ChatGPT.
ChatGPT Plus：chatgpt.com 加入、請求、モデルアクセス. Settings → Billing and the model picker over third-party quota tables. Plus ≠ API platform billing.
Plus$20/mo
Pickerlive model list
APIplatform.openai.com
Plus vs Free
| Free | Plus | |
|---|---|---|
| Price | $0 | ~$20/mo monthly |
| Models | Lower caps | Broader picker access |
| API | Separate | Not included |
Upgrade & billing
- 01Sign in
chatgpt.com personal account.
- 02Upgrade plan → Get Plus
- 03Settings → Billing
Invoices, payment, cancel (≥24 h before renewal).
- 04Model picker
Devices
Same account on web and apps (multi-device). Cancel old platform before switching stores (duplicate charges).
API / Business / Claude
OpenAI API · ChatGPT Business · Claude Pro. oakmeet — 8 · ~1 h.
Plus vs Pro?
Plus ~$20/mo personal; Pro higher tier—see pricing + Help.
App vs web billing?
Manage where you purchased; in-app prices may differ.
API included?
No—platform.openai.com bills separately.
Picker vs old screenshots?
Models roll out and retire; trust live UI + Release Notes.