**Bug Description**
I have an active Claude Pro subscription.

Claude.ai web works normally and I can use Opus 5 there.

However, Claude Code cannot access any model.

Models tested:

* claude-opus-5
* claude-sonnet-5
* claude-haiku-4-5-20251001

All return:

"There's an issue with the selected model. It may not exist or you may not have access to it."

My authentication status shows:

* loggedIn: true
* authMethod: claude.ai
* apiProvider: firstParty
* subscriptionType: pro

My ~/.claude.json also shows:

organizationType: "claude_pro"

There are no ANTHROPIC_* or CLAUDE_* environment variables set.

I reproduced the issue in:

* normal macOS terminal
* VS Code
* Claude Code 2.1.272
* Claude Code 2.1.236

Claude.ai continues to work normally with Opus 5 using the same account.

Please check the server-side Claude Code entitlement / organization provisioning for my account. It appears the account is recognized locally as Pro but model inference requests are being rejected by the Claude Code backend.

**Environment Info**
- Platform: darwin
- Terminal: Apple_Terminal
- Version: 2.1.236
- Feedback ID: 6e302244-af6c-4452-bd1b-8417dda3545d

**Errors**
```json
[{"error":"Error: 404

404 Not Found

\n at generate (/$bunfs/root/cli:39:39448)\n at makeRequest (/$bunfs/root/cli:90:8063)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-09-15T06:12:48.141Z"},{"error":"Error: 404

404 Not Found

\n at generate (/$bunfs/root/cli:39:39448)\n at makeRequest (/$bunfs/root/cli:90:8063)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-09-15T06:15:44.570Z"},{"error":"Error: 404

404 Not Found

\n at generate (/$bunfs/root/cli:39:39448)\n at makeRequest (/$bunfs/root/cli:90:8063)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-09-15T06:15:51.071Z"},{"error":"Error: 404

404 Not Found

\n at generate (/$bunfs/root/cli:39:39448)\n at makeRequest (/$bunfs/root/cli:90:8063)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-09-15T06:15:58.470Z"},{"error":"Error: 404

404 Not Found

\n at generate (/$bunfs/root/cli:39:39448)\n at makeRequest (/$bunfs/root/cli:90:8063)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-09-15T06:16:15.514Z"}]
```