Copilot Not Working

Why Is Microsoft Copilot Chat Character Limit Reduced to 8,000?

Maira Mehtab Sep 22, 2026 868 views

Question details

Users are experiencing an unexpected reduction in the Microsoft Copilot chat input limit, dropping from approximately 128,000 characters to just 8,000 characters.

Product: Microsoft Copilot
Device & OS: not provided
Scenario: Attempting to submit large prompts or analyze large documents within the Copilot chat interface.
Observed behavior: The chat input restricts the user to 8,000 characters, making it impossible to process large prompts or full documents in a single request as previously allowed.

Before you start

Verify your current Microsoft 365 subscription tier and check if you are signed into the correct premium account, as character limits can sometimes be restricted on free or unauthenticated accounts.

Solution 1Recommended

Check Microsoft Copilot Service Status and Account Type

Confirm if the sudden limit change is due to a temporary service rollout, server capacity adjustment, or an account-specific restriction.

Microsoft occasionally adjusts system limits to manage server capacity or during staged product updates. Checking the service status can confirm if this is a known, temporary change affecting your region.

Check service health

Navigate to the Microsoft 365 admin center or the official Microsoft service health page to check for any active advisories regarding Copilot capacity limitations.

Verify account sign-in

Ensure you are logged into the Microsoft account associated with your premium Microsoft 365 Copilot subscription, as different account types may face stricter chat limits.

Solution 2

Report the Issue to the Copilot Community Hub

Escalate the unexpected limit reduction to specialized experts for further investigation.

Free Microsoft Office alternative

Try WPS Office for Seamless AI Document Processing

If you are frustrated by Microsoft Copilot's sudden character limits or unexpected server capacity restrictions, consider switching to WPS Office. It is a free, lightweight, and highly compatible Office suite that includes built-in WPS AI to help you summarize, analyze, and write documents efficiently without heavy overhead.

1. Download the installer: Visit the official WPS Office website and click the free download button for your operating system.
2. Install the software: Run the downloaded installation file and follow the on-screen instructions to set up the suite on your device.
3. Explore WPS AI: Open a document and click on the WPS AI icon in the toolbar to start summarizing and generating text without strict prompt limits.

Highly compatible with Microsoft Office formats, ensuring seamless handling of Word, Excel, and PowerPoint files.Built-in WPS AI to help you effortlessly summarize, rewrite, and generate content for long documents.Free and lightweight software that runs smoothly on most devices without excessive resource consumption.Familiar and intuitive user interface that allows for an easy migration from Microsoft Office.

Frequently Asked Questions

Why did my Microsoft Copilot character limit drop from 128,000 to 8,000?

Character limits can fluctuate due to backend product updates, temporary rollout changes, server capacity management during peak times, or shifts in your specific account type and region.

Can I manually increase the Microsoft Copilot chat limit?

Currently, users cannot manually override or increase the chat character limit. You must wait for Microsoft to restore capacity or ensure you are logged into a premium subscription account that supports higher limits.

How can I process large documents if the Copilot limit is restricted?

If the limit is strictly capped at 8,000 characters, you will need to break your large prompts or documents into smaller, separate sections before pasting them into the chat, or utilize other AI-integrated tools like WPS AI.

Microsoft Copilot Issues