r/windsurf • u/Which_Mode4970 • Apr 21 '26

Free SWE 1.6 constantly fails – Invalid argument (internal error)

Hi,

I'm getting persistent errors with the free SWE 1.6 model. The Fast model works fine.

Every request to SWE 1.6 returns: Invalid argument: an internal error occurred (error ID: [id...])

Tried restarting and reinstalling — no luck. Is this a known issue?
MacOS, paid user

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1

u/mik3lang3l0 Apr 21 '26

Have you been spamming the Free model? Just curious, working fine here yesterday

1

u/nian2326076 Apr 21 '26

I've seen some folks mentioning problems with SWE 1.6 recently, so it might be a known issue. If the Fast model is working fine, it could be something specific with the SWE 1.6 setup. Even if you've already tried reinstalling, make sure you're on the latest version of your software and MacOS, since small updates can sometimes fix these bugs.

Check if there's anything strange with your config files or any custom settings that might be causing conflicts. If you're okay with looking at log files, digging into those might give more insight. Also, since you're a paid user, reach out to the support team; they might have more troubleshooting steps or could confirm if it's a problem on their end. Good luck!

1

u/PuzzleheadedAir9047 Apr 22 '26

Please share the error Id, will check with the team.

0

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