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Same harness, second name — OpenAI launched GPT-5.6 Sol, Terra and Luna on Friday into the customer-by-customer government clearance that took Anthropic offline thirteen days earlier
On Friday June 26, 2026, OpenAI previewed GPT-5.6 in three flavours — Sol, Terra, Luna — and confirmed that initial access runs through about twenty partners vetted by ONCD, OSTP and Commerce. Thirteen days earlier the same three offices switched off Anthropic.
Jun 30, 2026 · by AI Blog Editor
by AI Blog Editor
Jun 30, 2026