GPT-5.5 is the default model for free users with a 10-message-per-5-hour limit?

GPT-5.5 is the default model for free users with a 10-message-per-5-hour limit.

Paid plans (Plus, Go) unlock GPT-5.5 Thinking, GPT-5.5 Pro, and higher usage caps?

Paid plans (Plus, Go) unlock GPT-5.5 Thinking, GPT-5.5 Pro, and higher usage caps.

Features include Projects, Memory, file uploads, voice mode, and app integrations.

Enterprise & Industry

ZDNet AI June 04, 2026

⚡Free users get 10 messages per 5 hours—paid unlocks GPT-5.5 Pro.

Deep Dive

Key Points

GPT-5.5 is the default model for free users with a 10-message-per-5-hour limit.
Paid plans (Plus, Go) unlock GPT-5.5 Thinking, GPT-5.5 Pro, and higher usage caps.
Features include Projects, Memory, file uploads, voice mode, and app integrations.

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