OpenAI unveils GPT-5.6 Sol, Terra, and Luna but almost no one can use them yet: Here’s why

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Summary

OpenAI has introduced the GPT-5.6 family, including Sol, Terra, and Luna, but access is currently restricted to a small group of pre-approved customers. Sol is the flagship model, while Terra and Luna target balanced and lower-cost use cases. OpenAI says the models improve coding, agentic work, biology, and cybersecurity performance, and it has built stronger safety safeguards into the core model behavior. The company plans broader access through ChatGPT, Codex, and the OpenAI API once government review requirements ease.

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Web and Content Management

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Artificial Intelligence Software Development SaaS

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OpenAI
$25M to $50M