OpenAI said on Monday that it would soon wind down the availability of GPT-4.5, its largest-ever AI model, via its API. GPT-4.5 was released only in late February. Developers will have access to ...

At the same time, the pricing for GPT-4.5 through OpenAI’s API for third-party developers looking to build applications on the model appears shockingly high, at $75/$180 per million input/output ...

Despite the strong reaction, OpenAI had in fact already announced the plan to deprecate GPT-4.5 Preview back in April 2025.

GPT-4 is the newest language model created by OpenAI that can generate text that is similar to human speech. It advances the technology used by ChatGPT, which was previously based on GPT-3.5 but ...

OpenAI has unveiled GPT 4.1, the latest advancement in its AI model series, designed to empower developers and optimize workflows. This release introduces three distinct versions—GPT 4.1, GPT 4. ...

In addition, with the advent of GPT-4.1, the previous 'GPT-4.5 Preview' model has been decided to be discontinued on the API on July 14, 2025, and developers are being given a transition period.

The model is also available through OpenAI’s Chat Completions API, Assistants API, and Batch API. However, OpenAI cautions that GPT-4.5 may not remain in APIs for long due to its high cost and ...

OpenAI also plans to deprectate the GPT-4.5 preview in the API on July 14th, as “GPT‑4.1 offers improved or similar performance on many key capabilities at much lower cost and latency.

As if 4.1's launch wasn't confusing enough, the release also roughly coincides with OpenAI's July 2025 deadline for retiring the GPT-4.5 Preview from the API, a model one AI expert called a "lemon." ...

OpenAI said on Monday that it would soon wind down the availability of GPT-4.5, its largest-ever AI model, via its API.GPT-4.5 was released only in late February. Developers will have access to ...