Model lists you can read

The chat's model picker shows name, context window (CTX 131K) and an eye
for vision, on shared column tracks; the capability tags are gone from it.
Settings -> Models gives the name its own row and wraps the tags beneath.
The picker's tick now follows an in-place choice.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/lembas/web/templating.py

@@ -63,6 +63,26 @@ def stable_hue(value: str) -> int:
 
 templates.env.filters["stable_hue"] = stable_hue
 
+
+def context_size(tokens: int | None) -> str:
+    """A context window as a model list shows it: 131072 -> "131K".
+
+    Decimal thousands, because that is how the number is quoted everywhere a
+    person reads it, and a picker that said "128K" for a 131072-token model
+    would disagree with the admin page's own figure. Empty for an unknown size,
+    so the column slot is still emitted and the next row does not shift.
+    """
+    if not tokens or tokens <= 0:
+        return ""
+    if tokens < 1000:
+        return str(tokens)
+    if tokens < 1_000_000:
+        return f"{round(tokens / 1000)}K"
+    return f"{tokens / 1_000_000:.1f}".removesuffix(".0") + "M"
+
+
+templates.env.filters["context_size"] = context_size
+
 # A user's own message: escaped here and marked up, so `@mentions` read as
 # references rather than as punctuation. A filter rather than a context value
 # because the message templates are included from four different handlers and