Earlier this month, OpenAI CEO Sam Altman announced that the company would be reinstating its GPT-4o model, just over 24 hours after declaring that its newfangled GPT-5 would be accompanied by the "deprecating" of all previous models.

"GPT-5 gets more value out of less thinking time. In our evaluations, GPT-5 — with thinking — performs better than OpenAI o3 with 50-80 percent less output tokens across capabilities, including visual reasoning, agentic coding, and graduate-level scientific problem solving," the company wrote in a blog post.