OpenAI's recent launch of GPT-5 aims to penetrate the enterprise market, despite a rocky rollout that saw the reinstatement of the earlier GPT-4 model due to user feedback. Early adopters report significant improvements in performance and cost-effectiveness, with companies like Cursor and Vercel integrating GPT-5 into their products, suggesting a shift in loyalty from competitors like Anthropic. However, OpenAI faces substantial operational costs as it competes for enterprise customers in a rapidly evolving AI landscape.

OpenAI has launched GPT-5 along with three variants—GPT-5 Pro, GPT-5 mini, and GPT-5 nano—now accessible to all ChatGPT users, including free tiers. The new model boasts improved coding capabilities, reduced confabulations, and a novel approach to handling sensitive requests, while also introducing simulated reasoning for better accuracy in complex queries. Although the advancements are notable, some perceive GPT-5 as an incremental upgrade compared to previous models in the series.

OpenAI's GPT-5 offers a significant upgrade in speed and usability, featuring an auto-switcher that optimally routes queries to enhance user experience. While it's an excellent tool for everyday tasks and coding assistance, it may not yet surpass advanced models like Claude Code for seasoned programmers. Importantly, GPT-5 is priced competitively, making it an accessible choice for a wide audience.

OpenAI is considering reintroducing the older ChatGPT model 4o for Plus subscribers after user backlash against the newly released GPT-5 model, which many found less friendly and conversational. CEO Sam Altman acknowledged the feedback during a Reddit AMA and noted the rollout of GPT-5 faced unexpected issues.