I wish OpenAI had a family plan. I would love to pay and have my wife and kids use ChatGPT on a single subscription.

They have this, it's essentially ChatGPT Business. And if you use an Amex Plat card, it's basically free (plenty of ChatGPT 50% off links going around, or at least there were a few weeks ago).

I ended up going the with gemini to provide sota ai to my family in an affordable way. You could always make your chatgpt sub accessible to your family via discord with a bot that codex can produce in under 5mins.

You could try Group Chats, though I'm not sure they will use the higher models of the subscribing participants..