OpenAI CEO Sam Altman宣布GPT-4.5将分批向ChatGPT Plus用户推出，而非一次性全部上线。这是由于GPU资源的限制，为了保证用户能够进行长时间的对话，避免服务器压力过大。GPT-4.5是OpenAI最新的大型语言模型，更擅长理解用户意图，拥有更广阔的知识库和更高的“情商”，在写作、编程和解决实际问题方面表现更佳。OpenAI表示，早期测试表明，GPT-4.5的交互感觉更加自然，且预计幻觉现象会减少。尽管如此，Altman也试图降低人们的期望，强调GPT-4.5并非推理模型，不会在基准测试中取得压倒性优势。

🚀 GPT-4.5将分批向ChatGPT Plus用户推出，旨在确保用户体验，避免因服务器压力过大而影响对话质量。Altman表示，尽管希望一次性推出，但为了让用户进行长时间的对话，不得不采取分批上线的方式。

🧠 GPT-4.5是OpenAI最新的大型语言模型，拥有更广阔的知识库、更强的用户意图理解能力和更高的“情商”，使其在写作、编程和解决实际问题等方面表现更出色。OpenAI认为，GPT-4.5的交互体验更自然，且幻觉现象有望减少。

💻 GPT-4.5的发布受到GPU资源限制的影响。OpenAI原计划同时向ChatGPT Plus和Pro用户推出，但由于GPU不足，Pro用户率先体验。Altman表示，下周将增加数万个GPU，并逐步向Plus用户开放。

OpenAI CEO Sam Altman has announced that GPT-4.5 will "likely" begin rolling out to ChatGPT Plus subscribers "over a few days" rather than all at once. You'll just have to continue being patient.

"there is no perfect way to do this; we wanted to do it for everyone tomorrow, but it would have meant we had to launch with a very low rate limit," Altman posted to X on Tuesday. "we think people are gonna use this a lot and love it. so we think it's better to let people have real, long conversations with it, but that means we have to stagger people in rather than have everyone hit it hard a [sic] the same time."

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Announced last Thursday, GPT-4.5 is the latest version of OpenAI's large language model (LLM), and will apparently be the last which doesn't use chain-of-thought prompting. Chain-of-thought models strive to simulate human reasoning by breaking down complex tasks into manageable, logical steps, which are followed to ultimately reach an answer.

Though GPT-4.5 isn't quite there yet, OpenAI asserts that early testing indicates that interaction with it "feels more natural."

"Its broader knowledge base, improved ability to follow user intent, and greater 'EQ' make it useful for tasks like improving writing, programming, and solving practical problems," OpenAI said last week. "We also expect it to hallucinate less."

Even so, Altman has attempted to temper expectations, noting that GPT-4.5 "isn’t a reasoning model and won’t crush benchmarks."

The rolling, staggered release of GPT-4.5 doesn't come as a surprise. Altman previously stated that though OpenAI had initially wanted to launch the "giant, expensive model" to ChatGPT Plus and Pro subscribers simultaneously, a lack of graphics processing units (GPUs) prevented this. As such, ChatGPT Pro subscribers got their hands on it first. A ChatGPT Pro subscription costs $200 per month, while a Plus subscription is $20 per month.

"we will add tens of thousands of GPUs next week and roll it out to the plus tier then," Altman wrote on Thursday. "(hundreds of thousands coming soon, and i'm pretty sure y'all will use every one we can rack up.)"