内容来源：https://www.theverge.com/news/802653/openai-gpt-5-1-upgrade-personality-presets

内容总结：

北京时间9月25日，人工智能公司OpenAI正式发布GPT-5.1版本，这是继今年8月推出GPT-5后的一次重要升级。新版本在对话智能度与用户体验方面实现突破，并首次推出多风格人格化交互功能。

本次升级包含两大核心模型：GPT-5.1即时版与GPT-5.1思考版。前者在指令遵循和响应亲和力方面显著提升，后者则针对复杂任务展现出更强的问题解决能力。系统将自动为用户匹配最优处理模型，现有GPT-5模型将继续保留三个月过渡期。

值得关注的是，新版ChatGPT新增八种对话风格选项。用户可根据场景需要在“默认模式”“专业严谨”“亲切友好”“直言不讳”“奇思妙想”“简洁高效”“学术极客”及“犀利批判”等模式间自由切换。OpenAI应用业务首席执行官费吉·西莫在公开声明中强调：“随着ChatGPT用户突破8亿，个性化定制已成为必然需求。”

此次更新恰逢OpenAI面临市场考验的关键时期。此前发布的GPT-5因创新幅度未达预期引发用户争议，甚至出现要求重新启用GPT-4o的声浪。主要合作伙伴微软也开始引入Anthropic等竞争对手的模型，应用于Copilot研究员、GitHub Copilot等多款产品。

在推出新模型的同时，OpenAI近期还上线了AI浏览器ChatGPT Atlas的智能代理模式。该功能目前仅向付费用户开放，可模拟人类操作执行网页端任务，展现出向操作系统级应用发展的战略布局。

中文翻译：

OpenAI今日正式发布GPT-5.1版本，这是对今年8月推出的旗舰模型进行的重大升级。官方称此次更新将"显著提升ChatGPT的智能水平与对话趣味性"，使人工智能助手"更具温度与个性色彩"。

全新GPT-5.1版本新增八种对话风格选项：默认模式、专业严谨、亲切友善、直言不讳、古怪创意、简洁高效、书呆子模式、犀利批判。用户可根据场景需求自由切换这些个性化设定。

本次升级包含GPT-5.1即时版与GPT-5.1思考版两个子版本。据官方公告，即时版"在响应速度、指令遵循与情感温度方面均超越前代"；思考版则"在简单任务中反应更迅捷，复杂任务中表现更坚韧"。系统将自动为大多数查询匹配最优处理模型。两款新模型将于本周向ChatGPT用户逐步推送，旧版GPT-5模型将在"历史模型"菜单中保留三个月后正式退役。

作为升级的重要部分，OpenAI同步扩展了对话语气预设系统。根据技术博客说明，现有选项已涵盖默认模式、专业严谨、亲切友善、直言不讳、古怪创意、简洁高效、书呆子模式、犀利批判八种风格。公司还透露正在开发"通过设置直接微调ChatGPT风格"的实验功能，部分用户本周即可体验。

"面对超8亿用户群体，通用型解决方案早已无法满足多元化需求。"应用业务首席执行官菲吉·西莫在周三的Substack动态中强调。

尽管首席执行官萨姆·奥尔特曼曾在8月为GPT-5大力造势，实际发布却未达预期。众多用户对有限的性能提升表示失望，更对强制设为默认模型的做法提出质疑。舆论压力之下，OpenAI在GPT-5上线次日便宣布重新开放GPT-4o模型选项。

战略合作伙伴微软在GPT-5未达技术突破后，已加速引入Anthropic公司的竞争模型。目前Anthropic技术正逐步赋能Copilot Researcher、GitHub Copilot、Copilot Studio等产品，最新开发的Office代理程序更能通过Copilot聊天界面直接生成Word与PPT文档。

此次版本更新距OpenAI推出AI浏览器ChatGPT Atlas仅数周之隔。该浏览器的"代理模式"目前仅向ChatGPT Plus和Pro用户开放，其运作机制类似Operator工具，可代表用户在浏览器中执行操作指令。

英文来源：

OpenAI is releasing GPT-5.1 today, an update to the flagship model it released in August. OpenAI calls it an “upgrade” to GPT-5 that “makes ChatGPT smarter and more enjoyable to talk to.”
OpenAI says the brand-new GPT-5.1 is ‘warmer’ and has more ‘personality’ options
You can now toggle between Default, Professional, Friendly, Candid, Quirky, Efficient, Nerdy, and Cynical.
You can now toggle between Default, Professional, Friendly, Candid, Quirky, Efficient, Nerdy, and Cynical.
The new models include GPT-5.1 Instant and GPT-5.1 Thinking. The former is “warmer, more intelligent, and better at following your instructions” than its predecessor, per an OpenAI release, and the latter is “now easier to understand and faster on simple tasks, and more persistent on complex ones.” Queries will, in most cases, be auto-matched to the models that may best be able to answer them. The two new models will start rolling out to ChatGPT users this week, and the old GPT-5 models will be available for three months in ChatGPT’s legacy models dropdown menu before they disappear.
As part of the update, OpenAI also said it would expand its personality presets for the conversational tone of the models. The total list of options now includes Default, Professional, Friendly, Candid, Quirky, Efficient, Nerdy, and Cynical, per the company’s blog post. OpenAI also said in a release that it would also debut an “experiment for new ways to fine-tune ChatGPT’s style directly from settings,” which some users will begin to be able to access this week.
“With more than 800 million people using ChatGPT, we’re well past the point of one-size-fits-all,” Fidji Simo, the company’s CEO of Applications, wrote in a Wednesday Substack post.
While OpenAI CEO Sam Altman hyped up the announce of GPT-5 in August, the release failed the hype test. Many ChatGPT users were left unimpressed, particularly at the incremental improvements, and expressed frustration over OpenAI’s choice to make it the default model for ChatGPT. There was so much pressure that OpenAI decided it would bring back GPT-4o as an option, a day after the launch of GPT-5.
Microsoft, OpenAI’s strategic AI partner, has also increasingly been looking at rival models from Anthropic after GPT-5 failed to raise the bar enough. Anthropic’s models are now helping power Copilot Researcher, GitHub Copilot, Copilot Studio, and a new Office Agent that is able to produce Word and PowerPoint documents from Microsoft’s own Copilot chat interface.
The announcement of GPT-5.1 comes just weeks after OpenAI launched its AI-powered web browser, ChatGPT Atlas. It has an “agent mode” that’s currently only available to ChatGPT Plus and Pro users, and it works much like the company’s Operator tool to take actions in the browser on behalf of users.