OpenAI Phases Out GPT-4.5 API Access in Favor of GPT-4.1

OpenAI will phase out GPT-4.5 API access by July 14, recommending developers switch to GPT-4.1, which offers similar or improved performance at a lower cost. GPT-4.5 remains available in ChatGPT's research preview. This shift highlights OpenAI's focus on innovation and cost management, ensuring developers access cutting-edge AI technology.

OpenAI has announced that it will discontinue the availability of its GPT-4.5 model via its API by July 14, urging developers to transition to GPT-4.1, which was recently launched. GPT-4.5, known as Orion, was introduced in late February and marked OpenAI's largest AI model to date, utilizing extensive computing power and data. Despite its advancements in writing and persuasiveness over its predecessor, GPT-4o, GPT-4.5 has not reached the 'frontier level' on several industry benchmarks and is notably expensive to operate. The cost of GPT-4.5 is $75 per million input tokens and $150 per million output tokens, making it one of OpenAI's priciest offerings. The decision to phase out GPT-4.5 from the API is driven by the desire to focus on developing future models that are more cost-effective and efficient.

GPT-4.1, the proposed replacement, promises similar or improved performance at a reduced cost, making it a more viable option for developers. While GPT-4.5 will no longer be available through the API, it remains accessible to paying customers within ChatGPT's research preview. This strategic move by OpenAI underscores its commitment to innovation and cost management, ensuring that developers have access to cutting-edge AI technology without prohibitive expenses.

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