OpenAI has unveiled GPT-5.6, but access is currently limited to a closed preview available exclusively to trusted developers. This rollout comes in light of Anthropic's recent challenges with the U.S. federal government regarding Claude Fable. The company anticipates a public release in the coming weeks. The latest model naming convention resembles that of Claude, featuring three distinct model categories inspired by the Solar System: Sol, the most advanced model comparable to Claude Mythos; Terra, a balanced offering at the GPT-5.5 level priced at half; and Luna, a speedy and cost-effective model designed for daily use. Early benchmarks suggest significant advancements, yet users will have to wait to experience its capabilities firsthand. Are you excited for GPT-5.6? Absolutely! Why not launch it immediately?
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