Expired70% confidenceReleaseExact time
The 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.
4
Sources
70%
Confidence
Medium-term (~90 days)
Relevance
7/11/2026
First Seen
Valid until: 10/9/2026(expired)
Sources
Related Claims
UnverifiedIn the GPT-5.6 Codex evaluation, three different model tier configurations—Sol, Terra, and Luna—were set up.81% similarVerifiedGPT-5.6, codenamed 'Sol,' will be launched to the public simultaneously with two companion products, Terra and Luna.79% similarVerifiedGPT-5.6 is no longer a single model but has been split into three tiers: Sol, Tera, and Luna.78% similarUnverifiedLucentraCode allows users to directly invoke multiple models in the terminal, including GPT-6 Astra, GPT-5.6 Sol, Claude, Gemini, Grok, and Kimi.78% similarUnverifiedGPT-5.6 Luna has been made available to free users of ChatGPT.78% similar
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