Security Agents Automatically fix fails: AI Model Not Found "grok-4.5" — Cloud Agent never starts

Where does the bug appear (feature/product)?

Bugbot / Security Review Agent

Describe the Bug

When clicking “Automatically fix” on a Security Agent vulnerability finding (web Automations / Security Agents UI), the Cloud Agent does not start. The run fails immediately with:

AI Model Not Found: Model name is not valid: “grok-4.5”

Changing the Default model in Cloud Agents dashboard settings does not help — the Automatically fix flow still tries to use the invalid internal model id “grok-4.5”.

Steps to Reproduce

  1. Open Security Agents / Automations findings for a GitHub repo (reproduced on riccardopandolfi/bb_tracker).
  2. Open a High severity vulnerability finding.
  3. Click Automatically fix (web).
  4. Observe the error; Cloud Agent never starts.

Expected Behavior

Cloud Agent should start using a valid model from the Cloud Agents Default model dropdown (or allow selecting one), then apply the fix / open a PR.

Operating System

MacOS

Version Information

Cursor IDE
Version: 3.15.6
OS: macOS 26.2 (darwin 25.2.0)

For AI issues: which model did you use?

Invalid model id used by Security Agents Automatically fix: grok-4.5
(Dashboard default model changes ignored)

For AI issues: add Request ID with privacy disabled

Not available from Automatically fix web error UI (no chat Request ID exposed). Happy to provide one if told where to find it for Security Agent / Automation runs.

Additional Information

Related known issue: forum reports that approximate/invalid model slug “grok-4.5” is rejected by Cloud Agents.
Workaround: fixed the vulnerabilities manually via local IDE agent.
Also emailed [email protected] with the same report.
Please human-review — this blocks the Security Agents remediation path.

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

Hi @Riccardo_Pandolfi Thanks for the bug report! I see you also reached out to [email protected] so I’m going to leave this thread here so we can centralize everything on your email message.