What's New
⚡ Max Badge — Always Know Your Billing Mode
A new ⚡ Max badge appears in the session bar whenever your session runs on the Subscription engine (Claude Max / tmux). No more guessing which billing mode is active — the indicator is always in view.
Engine Tooltips — Clear Before You Switch
Hover over the API or Subscription buttons in the chat toolbar to see exactly what each engine does, what's required, and how you're billed — before you commit to switching.
| Engine | How it runs | Billing |
|---|---|---|
| API | Headless claude -p subprocess |
Per-token (Claude Pro / API key) |
| Subscription | Persistent tmux session (Claude Max) | Claude Max subscription — zero API credits consumed |
Fable Model
Fable is now documented and selectable — Claude's most creative and reasoning-intensive model. Use it for complex planning, deep analysis, and multi-step reasoning chains.
Full changelog: v5.52.0...v5.53.0