New Delhi, July 10 -- SAN FRANCISCO - When OpenAI first released GPT-5.6 Sol in late June, only about 20 companies with White House clearance could actually use it. That gating lifted Thursday when the company released its full GPT-5.6 model family - Sol, Terra, and Luna - to developers and enterprises worldwide, dropping tiered pricing into an AI market that is moving faster than most regulators had anticipated. TechCrunch reported the launch covers three variants pitched at distinct enterprise needs and budgets.

The three-variant structure is a clean competitive signal. Sol, billed as the workhorse, costs $5 per million input tokens and $30 per million output tokens. Terra, described as an intermediate option, comes in at $2.50 and $15...