Observed arrival · 2026-11-04
Swapvera tests whether an AI model switch breaks your app
A command-line scanner finds retiring models in your code, while a migration workflow compares replacement models on real requests.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Developers maintaining LLM-powered applications
- Worth noticing
- A displayed Catalan worksheet-correction test shows Haiku missing “d’averiguar → d’esbrinar” in all 15 comparisons.
Field notes
The repository scanner is invoked with `npx swapvera-scan .`; it reports a retiring model, shutdown date, replacement, and source location. The migration example uses the site's own Catalan worksheet-correction app: its displayed run compares 115 cases across 1,496 generations, but the homepage says testing so far covers Anthropic models and the verdict applies only to the cases compared.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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