OpenAI is experiencing challenges with the rollout of its latest model, GPT-4.5, as CEO Sam Altman confirmed the company is currently out of GPU chips. The shortage of hardware is delaying the release of GPT-4.5, which has been described as expensive and not significantly improved over its predecessor, GPT-4. Community tests have shown that GPT-4.5 often underperforms in creative tasks compared to GPT-4. This situation highlights the difficulties OpenAI faces in scaling its innovations amid growing demand for processing power. Altman noted that more GPUs are on the way, but the current lack of resources has forced the company to limit access to Pro users. The overall sentiment surrounding GPT-4.5 has been mixed, with some users expressing disappointment in its creative capabilities and performance.