feat: remove reverse proxy URL from demo

demos/demo-reverse-proxy.ts

@@ -14,17 +14,22 @@ dotenv.config()
  * ```
  */
 async function main() {
+  // WARNING: this method will expose your access token to a third-party. Please be
+  // aware of the risks before using this method.
   const api = new ChatGPTAPI({
-    // rate limit of 15 requests per 15 seconds
-    apiReverseProxyUrl: 'https://chatgpt.pawan.krd/api/completions',
+    // TODO: this is a placeholder URL; there are several available reverse proxies,
+    // but we're not including them here out of an abundance of caution.
+    // More info on proxy servers in Discord: https://discord.gg/v9gERj825w
+    apiReverseProxyUrl: 'https://your-secret-proxy-url.com/completions',
+
     // change this to an `accessToken` extracted from the ChatGPT site's `https://chat.openai.com/api/auth/session` response
     apiKey: process.env.OPENAI_ACCESS_TOKEN,
     completionParams: {
       // override this depending on the ChatGPT model you want to use
       // NOTE: if you are on a paid plan, you can't use the free model and vice-versa
       // model: 'text-davinci-002-render' // free, default model
-      model: 'text-davinci-002-render-paid' // paid, default model
-      // model: 'text-davinci-002-render-sha' // paid, turbo model
+      model: 'text-davinci-002-render-sha' // paid, default model (turbo)
+      // model: 'text-davinci-002-render-paid' // paid, legacy model
     },
     debug: false
   })

src/chatgpt-api.ts

@@ -8,12 +8,6 @@ import * as types from './types'
 import { fetch } from './fetch'
 import { fetchSSE } from './fetch-sse'
 
-// NOTE: this is not a public model, but it was leaked by the ChatGPT webapp.
-// const CHATGPT_MODEL = 'text-chat-davinci-002-20230126'
-// const CHATGPT_MODEL = 'text-chat-davinci-002-20221122'
-// const CHATGPT_MODEL = 'text-chat-davinci-002-sensitive-20230126'
-// const CHATGPT_MODEL = 'text-chat-davinci-002-sh-alpha-aoruigiofdj83'
-
 // Official model (costs money and is not fine-tuned for chat)
 const CHATGPT_MODEL = 'text-davinci-003'