OpenAI Launches GPT-5.6 Preview With Three Model Tiers, Outperforming Anthropic's Latest Across Key Benchmarks
OpenAI launches a limited preview of GPT-5.6 with three model tiers — Sol, Terra, and Luna — outperforming Anthropic's latest models across key benchmarks while debuting its strongest safety and cybersecurity features yet, as general availability approaches in the coming weeks.