Artificial Intelligence
OpenAI Unveils GPT-5.6 Series With Sol, Terra, and Luna in Limited Preview
OpenAI launched a limited preview of its GPT-5.6 model family on June 26, 2026, featuring Sol, Terra, and Luna. The flagship Sol model set a new record on Terminal-Bench 2.1 for agentic coding. Access is currently restricted to roughly 20 government-vetted partner companies.
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