AI summarized from verified sources
Use different strengths for chat, work, and safety
Choose the right mix of power, speed, and cost.
SOURCE CHECK
35 sources
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Primary / openai.com
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Key Points
- 1Three tiers: Sol, Terra, and Luna
- 2Limited preview for trusted partners
- 3Pricing and safety were explained together
- 4Broader access is expected in weeks
OpenAI started a limited preview of GPT-5.6 Sol, Terra, and Luna. Sol is the flagship model, Terra targets everyday work, and Luna focuses on lower cost. Safety protections were also strengthened, with broader availability planned soon.
What happened
OpenAI began a limited preview of the GPT-5.6 family: Sol, Terra, and Luna. Sol is the flagship model, Terra is aimed at everyday work, and Luna is optimized for lower cost.
Why it matters
Instead of one model name, users can choose by capability, speed, and cost. OpenAI also said it strengthened safety and is rolling out access in stages.
What it means for users
That makes it easier to pick the right model for coding, research, or lighter tasks. The preview is limited for now, but broader access should follow soon.