Cost too high? OpenAI pushes forward the GPT-4.5 API deprecation plan, causing anxiety and confusion among developers

On June 18th, news spread quickly in the machine learning and artificial intelligence community that OpenAI is about to remove one of its most parameter-rich and high-performance large language models - - the GPT-4.5 preview version. It is reported that OpenAI has sent email notifications to developers, planning to remove the GPT-4.5 preview version from the official API on July 14th, 2025. However, an OpenAI spokesperson confirmed that individual users can still select and use this model through the dropdown menu at the top of ChatGPT. This means that all third-party developers who have built applications or workflows based on the GPT-4.5 preview version must transition to the approximately 40 other models still available in the OpenAI API. The news quickly sparked discussions on social platforms, with developer and AI enthusiast reactions ranging from disappointment to confusion. Some users stated that the GPT-4.5 preview version was a crucial tool in their daily workflow, praising its tone and reliability. However, some developers questioned why OpenAI would introduce a model with such a short lifecycle. X user @BumrahBachi wrote: "What a a pity,T4.5 preview version of my favorite Monitoring platform Raindrop.AI's co-founder Ben Hyak bluntthis move a "", adding: "o3 and GPT-4.5 preview version are the models I use most most most every day." Another user @flowersslop raised a sharp question: "What is the significance of launching this model?" In fact, OpenAI had already announced plans to phase out the GPT-4.5 preview version when releasing GPT-4.1 in April 2025. At that time, OpenAI stated they would provide developers with a three-month transition period and viewed the GPGPT-4.5 preview version as an "experimental product providing insights for future development", promising to incorporate its experiences experiences in creativity and writing into future model iterations. OpenAI emphasized that the recent email is merely a reminder of the earlier announcementment and currently has no plans to remove-.5fromGversion. Nevertheless, eliminating the GPT-4.5 preview version from the API will still impact some users, especially developers developers who rely on its specific features to build workflows workflows. The developer community speculates that highAthat computational costs might be the primary reason for OpenAI's decision to abandon the GP4.5 preview version, with similar adjustadjustments having occurred with other models. Some users also noted recent recent API pricing changes, particularly an 80% price drop for GPT-3.5 (internal codeAo3). X user @chatgpt21 believed the GP.T5 .preview version the was best-performing non-reasoning model in all OpenAI benchbenchmarks" and predicted it would easily outperform o3 with more test computational resources (TTC). However, these speculations have now ended with the news of GPT-4.5 API termination:.Adevelopers to their online forum to help understand how to other modelsT like GPT-4.1 the4.version5API closure date approaching in mid-July 2025, developer teams dependent on this model have less than a month left for migration. This article isEncauthorized by 36kr.