Overview
- The pilot is live on web and mobile for logged‑in Free, Go, Plus, and Pro users in Japan, New Zealand, South Korea, and Taiwan.
- Chats support up to 20 participants via shareable invite links, and adding someone to an existing thread creates a separate group copy to preserve the original conversation.
- Group responses run on GPT‑5.1 Auto, which adaptively selects models by the replying user’s plan, with image generation, file uploads, voice dictation, and search available.
- Rate limits apply only when ChatGPT responds, so human messages in the group do not count against anyone’s quota.
- Personal ChatGPT memory is not used or shared in group conversations, brief profiles are required for participants, and safeguards include reduced sensitive content for groups with minors and optional parental disabling.