Cannot Send Large Messages (65k tokens) to Gemini 2.5 Pro MAX "Message Too Long" Error

Describe the Bug

I’m using Cursor IDE v1.2.2 with the Gemini-2.5-pro MAX model (which should support up to 1 million tokens). When I try to paste and send a chat message containing ~65,000 tokens, I get a “Your message is too long” error.

The same input works perfectly in Google’s AI Studio, so this appears to be an artificial limit in Cursor, not a model limitation. Please clarify if there’s a setting or workaround, or increase the allowed message size to match the model’s capabilities.

Steps to Reproduce

Use Cursor IDE v1.2.2

Set the chat model to Gemini-2.5-pro MAX

Paste a message with ~65k tokens

Try to send – observe the error

Expected Behavior

Messages up to 1 million tokens should be accepted (as supported by the model).

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Cursor IDE v1.2.2
Cursor IDE v1.2.2

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

This topic was automatically closed 22 days after the last reply. New replies are no longer allowed.