> ## Documentation Index
> Fetch the complete documentation index at: https://braintrust.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Playground timeout with long-running model requests

export const plans_0 = "Any"

export const deployments_0 = "Braintrust-hosted"

export const data_plane_version_0 = undefined

export const use_case_0 = "Use case - Playground runs with long-running models (85+ seconds execution time)"

<Note>
  **Applies to:**

  * Plan - {plans_0}
  * Deployment - {deployments_0}
  * {data_plane_version_0}
  * {use_case_0}
</Note>

## Summary

**Issue:** Playground runs with long-running models like `gpt-5-mini` (85+ seconds) appear to hang or timeout, showing no progress updates in the UI even though the request completes successfully in the background.

**Cause:** Server-Side Events (SSE) connection drops before the job completes, preventing the UI from receiving completion updates.

**Resolution:** Refresh the page to view completed results

## Resolution Steps

### Workaround for current issue

#### Step 1: Wait for expected completion time

Allow sufficient time for the model to complete processing (typically 85+ seconds for `gpt-5-mini`).

#### Step 2: Refresh the browser page

Reload the page to display the completed results that processed in the background.