ChatGPT Error in Message Stream Too Many Concurrent Requests Fix

This error usually means you have multiple tabs open that are trying to generate text at the same time, or your browser has “stuck” sessions running in the background.

Since you also just saw a “Gateway Time-Out,” OpenAI’s servers are likely struggling, but this specific error is often fixable on your end.

Quick Fixes (try first)

1. Refresh the page
   Temporary connection hiccup is the most common cause.

2. Wait 30–60 seconds and retry
   The system rate-limits concurrent message streams.

3. Close extra ChatGPT tabs
   Multiple open chats can trigger concurrent stream limits.

4. Log out → log back in

Detailed Fix:

1. The “Too Many Tabs” Fix (Most Common Cause)

OpenAI limits how many conversations you can generate simultaneously.

• Action: Look at your browser tabs. Do you have other ChatGPT windows open? Close them all except one.

• Action: If you share your account with someone else, ask them if they are using it right now. If two people try to type at once, this error triggers immediately.

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2. The “Ghost” Request Fix

Sometimes a previous request didn’t finish properly (it got stuck), and the server thinks you are still generating text.

• Refresh: Press F5 or Ctrl + R.

• Stop Generating: If you see a square “Stop” button above the chat box, click it.

• Start a New Chat: Click “New Chat” in the top left. Old chats with stream errors often stay broken until you leave them.

3. Clear “Local” Data (If it won’t go away)

If the error persists even with only one tab open, your browser is holding onto a bad session token.

• Chrome/Edge:

  1. Click the Lock icon 🔒 in the address bar (next to chatgpt.com).

  2. Select Cookies and site data.

  3. Click Manage cookies and site data.

  4. Click the Trash can icon next to openai.com and chatgpt.com.

  5. Reload the page and log in again.

4. Are you using a VPN?

• If many people on the same VPN server are using ChatGPT, OpenAI groups you all together and thinks one person is sending 1,000 requests at once.

• Fix: Turn off your VPN or switch to a different location (e.g., from “US East” to “US West”).

Summary:

This is different from the “Gateway” error. The Gateway error is their fault (server dead). This error is usually your browser trying to do too much at once. Close the extra tabs!