ChatGPT默认为GPT4（仅PLUS可用）

ChatGPT switch The default is GPT4
当前为 2023-04-18 提交的版本，查看最新版本。
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// ==UserScript==
// @name                 ChatGPT is GPT4 by default（PLUS only available）
// @name:zh-CN           ChatGPT默认为GPT4（仅PLUS可用）
// @description          ChatGPT switch The default is GPT4
// @description:zh-cn   ChatGPT switch The default is GPT4
// @version             0.1.0
// @icon               https://chat.openai.com/favicon.ico
// @match              https://chat.openai.com/*
// @namespace https://greasyfork.org/zh-CN/scripts/464284-chatgpt-is-gpt4-by-default-plus-only-available
// @license MIT
// ==/UserScript==

(function () {
  'use strict';
  const BUTTONS_GROUPS = ['Default (GPT-3.5)', 'Legacy (GPT-3.5)', 'GPT-4']
  const DEFAULT_MODEL = 'GPT-4';
  const BUTTON_INFOS = BUTTONS_GROUPS.filter((buttonText) => buttonText !== DEFAULT_MODEL).map((buttonText) => `Model${buttonText}`);

  const clickListItemByTextContent = (textContent) => {
    const listItems = document.getElementsByTagName('li');
    for (let listItem of listItems) {
      if (listItem.textContent === textContent) {
        listItem.click();
        return;
      }
    }
  };

  const switchModel = (model = DEFAULT_MODEL) => {
    setTimeout(() => clickListItemByTextContent(model), 0);
  };

  const callback = (mutationRecords) => {
    for (const mutationRecord of mutationRecords) {
      if (mutationRecord.addedNodes.length) {
        for (const addedNode of mutationRecord.addedNodes) {
          if (addedNode.nodeType === Node.ELEMENT_NODE) {
            const buttons = addedNode.querySelectorAll('button');
            for (let button of buttons) {
              if (BUTTON_INFOS.includes(button.textContent)) {
                button.click();
                switchModel();
                return;
              }
            }
          }
        }
      }
    }
  };

  const observer = new MutationObserver(callback);
  observer.observe(document.getElementById('__next'), {
    childList: true,
    subtree: true,
  });
})();