Sat, 27 Jun 2026, 00:48 am UTC OpenAI GPT-5.6 'Sol,' 'Terra,' 'Luna' Spark Crypto Buzz Over Familiar Names. OpenAI has unintentionally stirred excitement across the cryptocurrency community after unveiling its new GPT-5.6 family of artificial intelligence models, whose names closely resemble several of the industry's most recognizable digital assets. The company, led by CEO Sam Altman, introduced three new GPT-5.6 models—Sol, Terra, and Luna—during a blog announcement on Thursday.