ChatGPT News 07/29/2026 Read AI Rating: High
OpenAI Unveils GPT-5.6, a Three-Tier Model Family Balancing Frontier Intelligence and Efficiency
OpenAI has announced GPT-5.6, its next-generation model family, offered in three tiers: the flagship Sol, the balanced Terra, and the lightweight Luna. The lineup raises both performance and cost efficiency together, built for agentic workloads like Codex and ChatGPT Work.