Describe the bug
Hello,
I was building a simple CV page using copilot-cli and got this error few times.
✘ Model call failed: "413 413 Request Entity Too Large\n" (Request ID: 2819:3BE38A:5FAFA1:6A5EBE:6967C340)
Affected version
0.0.362 Commit: 0c95944
Steps to reproduce the behavior
- Take a screenshot - full window on Macbook M3
- Image should have at least 1.3 MB
- Paste it into chat (one is enough)
- Send a message that will have to use the image for reasoning such fix some UI issues
Expected behavior
1.Screenshot in chat (larger than 1.3MB)
2.Message refers to image and use it for reasoning
3.Chat goes normally without issues
Additional context
Error Logs
From ~/.copilot/logs/session-f5e99ddf-05aa-46db-8183-9438c1a94123.log:
2026-01-14T16:25:11.342Z [INFO] post https://api.individual.githubcopilot.com/chat/completions failed with status 413 in 37069ms - error; not retryable
2026-01-14T16:25:11.359Z [ERROR] error (Request-ID 2819:3BE38A:5FAFA1:6A5EBE:6967C340)
2026-01-14T16:25:11.359Z [ERROR] {
"status": 413,
"name": "CAPIError",
"message": "413 413 Request Entity Too Large\n"
}
2026-01-14T16:32:03.634Z [INFO] post https://api.individual.githubcopilot.com/chat/completions failed with status 413 in 8085ms - error; not retryable
2026-01-14T16:32:03.651Z [ERROR] error (Request-ID 2270:255483:62715D:6E0D41:6967C4FA)
2026-01-14T16:32:03.651Z [ERROR] {
"status": 413,
"name": "CAPIError",
"message": "413 413 Request Entity Too Large\n"
}
Describe the bug
Hello,
I was building a simple CV page using copilot-cli and got this error few times.
✘ Model call failed: "413 413 Request Entity Too Large\n" (Request ID: 2819:3BE38A:5FAFA1:6A5EBE:6967C340)
Affected version
0.0.362 Commit: 0c95944
Steps to reproduce the behavior
Expected behavior
1.Screenshot in chat (larger than 1.3MB)
2.Message refers to image and use it for reasoning
3.Chat goes normally without issues
Additional context
Error Logs
From ~/.copilot/logs/session-f5e99ddf-05aa-46db-8183-9438c1a94123.log: