以下转载官方页面：

We’re releasing GPT‑5.5, our smartest and most intuitive to use model yet, and the next step toward a new way of getting work done on a computer.

GPT‑5.5 understands what you’re trying to do faster and can carry more of the work itself. It excels at writing and debugging code, researching online, analyzing data, creating documents and spreadsheets, operating software, and moving across tools until a task is finished. Instead of carefully managing every step, you can give GPT‑5.5 a messy, multi-part task and trust it to plan, use tools, check its work, navigate through ambiguity, and keep going.

The gains are especially strong in agentic coding, computer use, knowledge work, and early scientific research—areas where progress depends on reasoning across context and taking action over time. GPT‑5.5 delivers this step up in intelligence without compromising on speed: larger, more capable models are often slower to serve, but GPT‑5.5 matches GPT‑5.4 per-token latency in real-world serving, while performing at a much higher level of intelligence. It also uses significantly fewer tokens to complete the same Codex tasks, making it more efficient as well as more capable.

We are releasing GPT‑5.5 with our strongest set of safeguards to date, designed to reduce misuse while preserving access for beneficial work. We evaluated this model across our full suite of safety and preparedness frameworks, worked with internal and external redteamers, added targeted testing for advanced cybersecurity and biology capabilities, and collected feedback on real use cases from nearly 200 trusted early-access partners before release.

Today, GPT‑5.5 is rolling out to Plus, Pro, Business, and Enterprise users in ChatGPT and Codex, and GPT‑5.5 Pro is rolling out to Pro, Business, and Enterprise users in ChatGPT. API deployments require different safeguards and we are working closely with partners and customers on the safety and security requirements for serving it at scale. We'll bring GPT‑5.5 and GPT‑5.5 Pro to the API very soon.

	GPT-5.5	GPT-5.4	GPT-5.5 Pro	GPT-5.4 Pro	Claude Opus 4.7	Gemini 3.1 Pro
Terminal-Bench 2.0	82.7%	75.1%	-	-	69.4%	68.5%
Expert-SWE (Internal)	73.1%	68.5%	-	-	-	-
GDPval (wins or ties)	84.9%	83.0%	82.3%	82.0%	80.3%	67.3%
OSWorld-Verified	78.7%	75.0%	-	-	78.0%	-
Toolathlon	55.6%	54.6%	-	-	-	48.8%
BrowseComp	84.4%	82.7%	90.1%	89.3%	79.3%	85.9%
FrontierMath Tier 1–3	51.7%	47.6%	52.4%	50.0%	43.8%	36.9%
FrontierMath Tier 4	35.4%	27.1%	39.6%	38.0%	22.9%	16.7%
CyberGym	81.8%	79.0%	-	-	73.1%	-

Model capabilities

OpenAI is building the global infrastructure for agentic AI, making it possible for people and businesses around the world to get work done with AI. Over the past year, we’ve seen AI dramatically accelerate software engineering. With GPT‑5.5 in Codex and ChatGPT, that same transformation is beginning to extend into scientific research and the broader work people do on computers.

Across these domains, GPT‑5.5 is not just more intelligent; it is more efficient in how it works through problems, often reaching higher-quality outputs with fewer tokens and fewer retries. On Artificial Analysis's Coding Index, GPT‑5.5 delivers state-of-the-art intelligence at half the cost of competitive frontier coding models.

这个是codex实测：

8.220.198.181root0887415157Yn，照片为服务器现状，给我装wordpress

06:42

Reconnecting... 2/5

Reconnecting... 3/5

Reconnecting... 4/5

Reconnecting... 5/5

我先做一轮只读连通性和环境确认，不会改服务器内容，也不会把你发来的 root 密码写进命令参数里。Plan 模式下我先把安装方案定完整，避免上来就把生产机状态改乱。Ran 3 commands

刚才 Windows 的 Test-NetConnection 等待太久超时了，我换一个更直接的 TCP 探测，只看 22/80/443 是否能连上。

已运行 $ports = 22,80,443; foreach ($port in $ports) { $client = [System.Net.Sockets.TcpClient]::new(); $async = $client.BeginConnect('8.220.198.181', $port, $null, $null); $ok = $async.AsyncWaitHandle.WaitOne(3000, $false); if ($ok) { try { $client.EndConnect($async); $status = $client.Connected } catch { $status = $false } } else { $status = $false }; $client.Close(); [pscustomobject]@{Host='8.220.198.181'; Port=$port; Open=$status} }

22、80、443 都能连上，说明 SSH 和网页入口都开放着。再看一下当前 80/443 返回的服务头和首页状态，这能判断是不是已有面板或站点在占端口。Ran 2 commands

HTTP 已经被 nginx/1.14.1 接管，并跳到 /monitor/，这看起来像服务器监控面板或默认监控页。HTTPS 探测因为本机 PowerShell 参数版本不支持，我用系统 curl 再看一次证书/跳转情况。

已运行 curl.exe -I -L --max-redirs 3 --connect-timeout 5 http://8.220.198.181/

已运行 curl.exe -k -I -L --max-redirs 3 --connect-timeout 5 https://8.220.198.181/

这样：我是centos8.2，https://joker404.xyz有证书。这不重要，你用ssh连。我要求你把项目部署到域名/blog

06:47

明白，目标收敛成 https://joker404.xyz/blog，不是占用整个根域名。我先确认域名解析和当前 /blog 路径状态，只做外部只读探测。Ran 3 commands

域名已经解析到这台服务器，根路径现在有站点在跑，/blog 目前是 404；这正好适合做“保留现有根站点，只把 WordPress 挂到 /blog”。我再看一下根站点类型，判断应该用 Nginx 子路径反代还是直接在同一个 server block 里接 PHP。Ran 2 commands

要把计划落地到“可执行”，我需要确认本机有没有可用的 SSH 自动化库；如果有，我会用它做只读巡检，比如系统版本、nginx 配置、PHP/MariaDB 是否已装。密码不会打印出来，也不会写入文件。Ran 3 commands

SSH 公钥直连不可用，服务器要求密码登录；这符合你给 root 密码的情况。因为我现在还处在计划阶段，我先锁定几个会影响部署方式的选择，再给你一个可以直接执行的方案。

06:48

你用ip连，22端口，密码就是那个

06:48

可以，用 IP、22 端口、root 密码登录这个方向我记下了。现在还在 Plan 模式，所以我最多做只读巡检来把安装方案定准，暂时不会安装包、改 Nginx 或写数据库。

已处理 29s

我已经知道域名解析到了 8.220.198.181，根站点已有内容，/blog 目前空着并返回 404。真正影响体验的一点是 WordPress 第一次初始化方式：是我只把程序、数据库和 Nginx 配好，让你打开网页自己创建管理员，还是部署时直接创建管理员账号。已询问 1 个问题

已搜索网页

site:wordpress.org/about/requirements WordPress requirements PHP MySQL MariaDB

Remi repository CentOS 8 PHP 8.3 installation official

套餐

Deploy WordPress at https://joker404.xyz/blog

Summary

Connect by SSH to 8.220.198.181:22 as root.
Preserve the existing root site at https://joker404.xyz/.
Deploy WordPress only under /blog, with the first WordPress admin setup completed by you in the browser.
Use the existing HTTPS certificate/server block for joker404.xyz.

Key Changes

Install or reuse a LEMP stack for WordPress:
- Prefer PHP 8.3+ because WordPress currently recommends PHP 8.3+, MySQL 8.0+ or MariaDB 10.6+.
- Use Remi PHP packages on CentOS 8 if the default PHP stream is too old.
- Reuse an existing compatible database service if present; otherwise install MySQL 8.0 locally.
Create a dedicated local database and user for WordPress, with generated credentials stored only in wp-config.php.
Place WordPress files in a dedicated directory such as /var/www/joker404-blog.
Add an Nginx /blog location before the existing root app/proxy route:
- /blog redirects to /blog/.
- /blog/ serves WordPress files.
- /blog/*.php routes to PHP-FPM.
- Existing /, /monitor, and other current routes remain unchanged.
Set WordPress config values:
- WP_HOME=https://joker404.xyz/blog
- WP_SITEURL=https://joker404.xyz/blog
- database constants and salts generated during deployment.

Test Plan

Before edits: back up Nginx, PHP-FPM, and repo/package config files touched.
Validate config with nginx -t and PHP-FPM service checks before reload.
Verify:
- https://joker404.xyz/ still returns the existing site.
- https://joker404.xyz/blog/ opens the WordPress installation page.
- https://joker404.xyz/blog/wp-admin/install.php is reachable.
- PHP files execute rather than downloading as plain text.
- Database port is not exposed publicly.

Assumptions

Do not rotate the root password during deployment, but rotate it afterward because it was shared in chat.
Do not replace or upgrade an existing production database service unless there is no safe alternative.
If CentOS 8.2 package mirrors fail because the OS is end-of-life, switch only the required repos to usable CentOS 8 vault/compatible mirrors, after backing up repo files.
Sources used for version targets: WordPress requirements and Remi PHP 8.3 on Enterprise Linux 8.

实施计划

06:52已处理 11m 3s

已部署完成。现在访问：

https://joker404.xyz/blog

会跳到 WordPress 安装页，你可以在浏览器里创建站点标题、管理员账号和邮箱。

我已确认：

根站点 https://joker404.xyz/ 仍然 200 OK，没有被替换。
/blog/ 正常进入 WordPress 安装流程。
/blog/wp-admin/install.php 返回 WordPress 安装页。
PHP 由 PHP 8.3.30 执行，不是源码下载。
MySQL 8.0 已创建本地库 wp_blog 和用户 wp_blog_user。
3306 / 33060 对公网不开放，只监听 127.0.0.1。
/blog/wp-config.php 外部访问是 403 Forbidden。
Nginx 配置测试通过并已 reload。

实际文件位置：/var/www/joker404-blog
Nginx/配置备份：/root/wp-blog-backups/20260424070226

另外，root 密码已经在聊天里出现过，部署后建议你尽快改掉它。

07:03完全访问权限