[BUG] Fable 5 promotional notice compares against "Opus 4.8" - should be Opus 5 (current Opus)

Summary

The in-product "Fable 5 is now a standard part of your Max plan" notice compares Fable 5's usage draw-down against Opus 4.8, which is no longer the current Opus model. It should reference Opus 5.

Message text (verbatim, as shown in the Claude Code VS Code extension)

Fable 5 is now a standard part of your Max plan You can use up to 50% of your weekly usage limit on Fable 5. If you hit your limit, you can continue on Fable 5 with usage credits. Fable 5 draws down usage faster than Opus 4.8. Run /model and select Fable to use it. Learn more: https://support.claude.com/en/articles/15424964-claude-fable-5-promotional-access

Why this is stale

• Opus 5 (claude-opus-5) is the current Opus-tier model; Opus 4.8 (claude-opus-4-8) is previous-generation.
• Opus 5 is the active model in this session, so the notice compares Fable 5 against a model the user is not running.
• Opus 5 and Opus 4.8 sit in the same API price tier ($5/$25 per MTok), so the ratio the sentence implies is not wrong, but naming the older model makes the comparison ambiguous. A user on Opus 5 cannot tell whether the line is (a) simply out of date, (b) implying Opus 5 draws down differently from Opus 4.8, or (c) implying they would be switched to 4.8.

Expected

The notice names the current Opus model, i.e. "Fable 5 draws down usage faster than Opus 5", and ideally resolves the model name dynamically so it does not drift again on the next Opus release.

Environment

• Claude Code VS Code extension, v2.1.220
• Windows 11 Pro 10.0.26200
• Plan: Max
• Active model: Opus 5

Notes

Scope is copy only, no functional impact observed. Filing because the same string will keep going stale on each Opus release unless it reads the current model name.