We're having trouble connecting to the model provider. After using premium model

[carlospravia]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Request ID: de1b8aaf-c053-4d33-a962-ff66ac5894b1
{“error”:“ERROR_PROVIDER_ERROR”,“details”:{“title”:“Provider Error”,“detail”:“We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.”,“isRetryable”:false,“additionalInfo”:{},“buttons”:,“planChoices”:},“isExpected”:true}
Provider Error We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.
aBi: Provider Error We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.
at Fnw (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:43963:24394)
at Nnw (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:43963:23385)
at Jnw (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:43964:6487)
at A9u.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:43964:11286)
at async JIn.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:56307:11753)
at async k0d.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:56377:11221)
at async k0d.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:56377:17325)
at async XOe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:44075:19892)
at async NGa.acceptPlan (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:44114:28242)
at async _e (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:56882:3009)

Steps to Reproduce

After setting an implementation plan using Premium model, the Build wont be able to start due the error. I have no custom API keys set on my IDE

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 3.0.16 (Universal)
VSCode Version: 1.105.1
Commit: 475871d112608994deb2e3065dfb7c6b0baa0c50
Date: 2026-04-09T05:33:51.767Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.4.0

Does this stop you from using Cursor

Yes - Cursor is unusable

[carlospravia]

After several minutes the problem persist, however a new agent window with other set of tasks worked as expected. No provider error found.

[carlospravia]

The workaround was to copy/paste the plan to another agent conversation and plan again. From there it was able to execute the plan.

[deanrie]

Hey, thanks for the report with details and the Request ID.

This is a known bug. In long Auto mode sessions, the request data gets serialized incorrectly, which causes a provider-side error. The team is aware, but there’s no ETA for a fix yet.

The workaround you found (copy the plan into a new chat) is exactly what we recommend right now. You can also try manually picking a specific model instead of Auto.

Let me know if there’s anything else.