[Bug] Claude Code fails to recognize MAX subscription tier - defaults to Pro restrictions

Environment

• Platform (select one):
• [ ] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [x] Other: Claude Code CLI
• Claude CLI version: 1.0.43 (Claude Code) (also tested with v1.0.98)
• Operating System: macOS 15.6.1 (Build 24G90)
• Terminal: <!-- Please specify your terminal app if you know it -->

Bug Description

MAX x20 subscription is not recognized in Claude Code despite being active and working in Claude Desktop. The system incorrectly identifies me as a "Claude Pro" user and restricts access to Opus model. Login sessions show a new "user:profile" attribute that wasn't present in older sessions, suggesting a change in the authentication flow.

Steps to Reproduce

1. Have an active MAX x20 subscription (Org ID: 55456c2e-de81-4166-bc9b-1f113c39d7af)
2. Login to Claude Code using claude login --subscription
3. Run /status command - shows "Login Method: Claude API Account" and model restricted to Sonnet
4. Try to switch to Opus model using claude --model opus
5. Receive error message: "Claude Pro users are not currently able to use Opus in Claude Code"

Expected Behavior

• MAX x20 subscription should be recognized upon login
• Should have access to Opus model as per MAX subscription benefits
• Status should reflect correct subscription tier
• Should be able to use same features as in Claude Desktop

Actual Behavior

• Subscription not recognized - stuck with Sonnet model only
• Error message incorrectly identifies user as "Claude Pro" instead of MAX subscriber
• /status shows:
• Login Method: Claude API Account
• Model: Sonnet Sonnet 4 for daily use
• Cannot access Opus model despite MAX subscription

Additional Context

• Session ID: 70c4a2ea-9234-4382-ac10-bcd5a9b75665
• Org ID: 55456c2e-de81-4166-bc9b-1f113c39d7af
• Troubleshooting attempted:
• Switched between API and subscription login methods - no change
• Uninstalled and reinstalled Claude Code - no change
• Downgraded Claude Code versions - no change
• Observable difference in Claude Desktop: Login sessions now show two attributes:
• New sessions: user:inference AND user:profile
• Old sessions: Only user:inference
• Note: MAX subscription works correctly in Claude Desktop application, issue is isolated to Claude Code CLI