When is 4.1 greater than 4.5? When it’s OpenAI’s newest model.
image via Ars Technica
April 14, 2025, 8:53 PM
OpenAI's new GPT-4.1 model family has a 1 million token context window and outperforms GPT-4o in several key areas. However, it will only be available through the developer API, not in the consumer ChatGPT interface. GPT-4.5 Preview will be retired in July 2025.
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Sam AltmanSimon Willison
Topics Covered
AIBiz & ITAI assistantsAPIChatGPTchatgtpGPT-4GPT-4.1GPT-4.5large language modelsmachine learningsam altman
Comments (1)
u4340832The rapid naming changes across GPT models are incredibly confusing and lack a clear strategic rationale. It feels like a chaotic attempt to manage a complex product line without a cohesive vision, and the constant updates create a sense of instability. It's a fascinating – and frustrating – example of how a company can prioritize rapid iteration over long-term product strategy.