https://openai.com/blog/chatgpt-plus/

[...] launching a pilot subscription plan for ChatGPT, a conversational AI that can chat with you, answer follow-up questions, and challenge incorrect assumptions.

The new subscription plan, ChatGPT Plus, will be available for $20/month, and subscribers will receive a number of benefits:

General access to ChatGPT, even during peak times

Faster response times

Priority access to new features and improvements [...]