Expired60% confidenceReleaseExact time
OpenAI introduced the Sol, Terra, and Luna series of model names, abandoning the numerical naming approach.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/8/2026
First Seen
Valid until: 10/6/2026(expired)
Sources
GPT-5.6 Sol对决Fable 5：半价能否媲美旗舰？
bilibiliYoutube力工7/6/2026
Related Claims
UnverifiedOpenAI does not have a celestial-body-named product line of Sol/Terra/Luna.80% similarUnverifiedOpenAI改变命名逻辑，数字标识代际，Sol、Terra、Luna标识持久的能力层级，每层可独立迭代72% similarUnverifiedOpenAI uses the semantic codenames "Sol" (sun) and "Luna" (moon) to differentiate between variants of the same model generation.71% similarUnverifiedOpenAI has launched a three-tier product line consisting of the flagship Astra, the balanced Sol, and the lightweight Luna.70% similarUnverified过去OpenAI的模型命名体系包括O系列、4O、Mini、High等，命名混杂让用户难以分辨68% similar
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