diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 36ad06017..9a23e72aa 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -36,13 +36,14 @@ jobs:
         uses: anthropics/claude-code-action@v1
         with:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
+          model: opus
 
           # This is an optional setting that allows Claude to read CI results on PRs
           additional_permissions: |
             actions: read
 
           # When triggered by Claude label, provide default prompt to work on the issue
-          prompt: ${{ github.event.action == 'labeled' && 'Please analyze this issue and implement a solution. Follow the project guidelines in CLAUDE.md.' || '' }}
+          prompt: ${{ github.event.action == 'labeled' && 'ultrathink Please analyze this issue and implement a solution. Follow the project guidelines in CLAUDE.md.' || '' }}
 
           # Optional: Add claude_args to customize behavior and configuration
           # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md