OpenAI has released a preview of its next-generation GPT-5.6 model series, including the flagship model Sol, the balanced model Terra, and the fast, low-cost model Luna.
According to Odaily, GPT-5.6 introduces a new maximum reasoning effort setting and includes a “super mode” that can speed up complex tasks through sub-agents.
The company said the model offers stronger agent capabilities in areas including coding, biology, and cybersecurity.
OpenAI listed pricing per 1 million tokens as follows: Sol at $5 for input and $30 for output; Terra at $2.5 for input and $15 for output; and Luna at $1 for input and $6 for output.
The preview is currently available in limited access to a small group of trusted partners, with a plan to open broader access in the coming weeks. The model is also scheduled to go live on Cerebras in July.
AI TRENDS | OpenAI Releases GPT-5.6 Preview With Sol, Terra, and Luna Models
2026-06-27 00:53:45
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