[BUG] /stats Models tab shows unexpected models (kimi-k2.5, deepseek_v3_1) that user never configured

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The /stats > Models tab displays usage for kimi-k2.5 (80.5%) and deepseek_v3_1 (2.9%) as the top models, but I have only ever used
claude-sonnet-4-6 and claude-opus-4-6 in Claude Code. I never configured or intentionally used Kimi or DeepSeek models.

What Should Happen?

Only claude-sonnet-4-6 and claude-opus-4-6 should appear in the stats,
as these are the only models I have used.

Error Messages/Logs

No error messages. The stats display silently shows incorrect model attribution.

Steps to Reproduce

1. Use Claude Code only with claude-sonnet-4-6 and claude-opus-4-6
2. Run /stats command
3. Click on the "Models" tab
4. Observe that kimi-k2.5 and deepseek_v3_1 appear with significant usage

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.84

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_