Verified65% confidenceReleaseExact time
GPT-5.6 Luna has been made available to free users of ChatGPT.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
8/8/2026
First Seen
Valid until: 11/6/2026
Sources
GPT-5.6 Sol持续优化，Luna向免费用户开放：模型分层策略解读
Related Claims
UnverifiedOn the web version of ChatGPT, only paid users can use GPT-5.6; free users can use the Terra model in Work and Codex, while paid users can unlock the full lineup and customize effort levels.78% similarVerifiedThe three variants of GPT-5.6—Sol, Terra, and Luna—were simultaneously made available to all users, with ChatGPT, Codex, and the API all accessible.78% similarUnverifiedThe GPT-5.6 TERA version is on par with the previous generation GPT-5.5 and is the default option for unsubscribed users.76% similarVerifiedThe core foundation of this update is the new frontier model GPT-5.6 (codenamed Sol in the demo), which is open to all users.75% similar
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