Analytics Vidhya
7/10/2026

OpenAI Launches GPT-5.6 Models (Sol, Terra, Luna) with Free Public Access
Original: GPT-5.6 Is Here: Sol, Terra, and Luna
Short summary
OpenAI launched three GPT-5.6 variants—Sol, Terra, and Luna—publicly today with free access to all users. Models were previously available only to select users; tiered pricing options now available alongside free tier.
- •GPT-5.6 released in three model variants: Sol, Terra, Luna
- •Free public access for all users (no subscription required initially)
- •Tiered pricing structure introduced; details partially truncated
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