### Check for existing issues

- [x] I have searched the existing issues and checked that my issue is not a duplicate.

### What happened?

On our proxy, users are given access to models by tier (e.g., "economy", "standard", "premium") rather than by listing each model.

For those users, the Models + Endpoints page in the UI says "No models found".

The same users see the full model list in the Playground and in the model dropdown when creating a key, and their requests to those models work fine. So the access is there, just that one page is blank.

If I change a user so they list the model names individually instead of the tier, the page starts working for them.

Users are internal users (w write) and are not in any team.

Version: v1.91.0.

### Steps to Reproduce

1. Set up models in your proxy with different groups (e.g. `economy`) 2. Create a new internal user with write and no team, assign it to that model list 3. Log in with the user, go to the "_Models + Endpoints_" page. No model is available

### Relevant log output

```shell N/A ```

### What part of LiteLLM is this about?

UI Dashboard

### What LiteLLM version are you on ?

v1.91.0

### Twitter / LinkedIn details

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