diff --git a/web/src/components/ModelPickerDialog.tsx b/web/src/components/ModelPickerDialog.tsx
index b05e389bdb40..e73c959e6f8e 100644
--- a/web/src/components/ModelPickerDialog.tsx
+++ b/web/src/components/ModelPickerDialog.tsx
@@ -11,6 +11,7 @@ import { useEffect, useMemo, useRef, useState } from "react";
 import { createPortal } from "react-dom";
 import { cn, themedBody } from "@/lib/utils";
 import { fuzzyRank } from "@/lib/fuzzy";
+import { queryMatchesProviderOnly } from "@/lib/model-picker-filter";
 
 /**
  * Two-stage model picker modal.
@@ -226,15 +227,30 @@ export function ModelPickerDialog(props: Props) {
     [providers, trimmedQuery],
   );
 
+  // A query that matched the SELECTED provider by name/slug (not its models)
+  // located that provider — it shouldn't also hide that provider's models
+  // just because their ids don't share a substring with the provider name
+  // (e.g. typing "aws" to find "AWS Build" then finding zero of its Claude
+  // model ids contain "aws"). Fall back to an unfiltered model list in that
+  // case; a query that also matches a model id keeps filtering normally.
+  const queryMatchesSelectedProviderOnly = useMemo(
+    () => queryMatchesProviderOnly(selectedProvider, models, trimmedQuery),
+    [trimmedQuery, selectedProvider, models],
+  );
+
   // Fuzzy-ranked models carrying the matched character positions so the model
   // list can highlight why each entry matched.
   const filteredModels = useMemo(
     () =>
-      fuzzyRank(models, trimmedQuery, (m) => m).map((r) => ({
+      fuzzyRank(
+        models,
+        queryMatchesSelectedProviderOnly ? "" : trimmedQuery,
+        (m) => m,
+      ).map((r) => ({
         model: r.item,
         positions: r.positions,
       })),
-    [models, trimmedQuery],
+    [models, trimmedQuery, queryMatchesSelectedProviderOnly],
   );
 
   const canConfirm = !!selectedProvider && !!selectedModel && !applying;
diff --git a/web/src/lib/model-picker-filter.test.ts b/web/src/lib/model-picker-filter.test.ts
new file mode 100644
index 000000000000..4163d0782487
--- /dev/null
+++ b/web/src/lib/model-picker-filter.test.ts
@@ -0,0 +1,38 @@
+import { describe, it, expect } from "vitest";
+import { queryMatchesProviderOnly } from "./model-picker-filter";
+
+describe("queryMatchesProviderOnly", () => {
+  it("returns true when the query finds the provider but no model id (issue #65374)", () => {
+    // Reproduces the exact case from the issue: typing "aws" locates the
+    // "AWS Build" provider, but none of its Claude model ids contain "aws".
+    const provider = { name: "AWS Build", slug: "aws-build" };
+    const models = ["claude-sonnet-4.5", "claude-sonnet-4", "claude-haiku-4.5"];
+
+    expect(queryMatchesProviderOnly(provider, models, "aws")).toBe(true);
+  });
+
+  it("returns false when the query also matches a model id — keeps normal filtering", () => {
+    const provider = { name: "AWS Build", slug: "aws-build" };
+    const models = ["claude-sonnet-4.5", "claude-sonnet-4", "claude-haiku-4.5"];
+
+    expect(queryMatchesProviderOnly(provider, models, "sonnet")).toBe(false);
+  });
+
+  it("returns false when the query does not match the provider at all", () => {
+    const provider = { name: "AWS Build", slug: "aws-build" };
+    const models = ["claude-sonnet-4.5"];
+
+    expect(queryMatchesProviderOnly(provider, models, "openrouter")).toBe(false);
+  });
+
+  it("returns false for an empty query", () => {
+    const provider = { name: "AWS Build", slug: "aws-build" };
+    const models = ["claude-sonnet-4.5"];
+
+    expect(queryMatchesProviderOnly(provider, models, "")).toBe(false);
+  });
+
+  it("returns false when there is no selected provider", () => {
+    expect(queryMatchesProviderOnly(null, ["claude-sonnet-4.5"], "aws")).toBe(false);
+  });
+});
diff --git a/web/src/lib/model-picker-filter.ts b/web/src/lib/model-picker-filter.ts
new file mode 100644
index 000000000000..6d173f8e694f
--- /dev/null
+++ b/web/src/lib/model-picker-filter.ts
@@ -0,0 +1,23 @@
+import { fuzzyScoreMulti } from "@/lib/fuzzy";
+
+/**
+ * True when `trimmedQuery` located the selected provider by name/slug but
+ * matches none of its models by id — the case where a single search box
+ * filtering both the provider and model columns would otherwise leave the
+ * model pane empty even though the user just successfully found the
+ * provider they were looking for.
+ */
+export function queryMatchesProviderOnly(
+  selectedProvider: { name: string; slug: string } | null,
+  models: readonly string[],
+  trimmedQuery: string,
+): boolean {
+  if (!trimmedQuery || !selectedProvider) return false;
+
+  const matchesProvider =
+    fuzzyScoreMulti(`${selectedProvider.name} ${selectedProvider.slug}`, trimmedQuery) !=
+    null;
+  const matchesAnyModel = models.some((m) => fuzzyScoreMulti(m, trimmedQuery) != null);
+
+  return matchesProvider && !matchesAnyModel;
+}