OpenAI Retires o3 and GPT-4.5: What It Means for Your AI Stack in 2026
In a landmark announcement that reverberates across the AI development ecosystem, OpenAI has declared the official retirement of two cornerstone models: o3 and GPT-4.5. These models, which have powered countless enterprise applications, chatbots, and intelligent agents, will be sunset on August 26, 2026 for the o3 model and June 27,…
