diff --git a/ui/src/markdownNormalization.ts b/ui/src/markdownNormalization.ts
index 5267a2624..6102a1f92 100644
--- a/ui/src/markdownNormalization.ts
+++ b/ui/src/markdownNormalization.ts
@@ -232,17 +232,23 @@ export function normalizeCurrencyDollars(
 
 function normalizeProse(text: string, options: NormalizationOptions): string {
   let normalizedMath = text
+    .replace(/\uE200cite\uE202([^\uE200\uE201]*)\uE201/g, (_, sources: string) =>
+      sources.split("\uE202")
+        .filter((source) => /^https?:\/\/[^\s<>]+$/i.test(source))
+        .map((source) => `<${source}>`)
+        .join(" "))
     .replace(/\\\[([\s\S]+?)\\\]/g, (_, inner: string) => `$$${inner}$$`)
     .replace(/\\\(([\s\S]+?)\\\)/g, (_, inner: string) => `$$${inner}$$`);
   if (options.predictMath) {
     normalizedMath = normalizedMath
+      .replace(/\uE200(?:c(?:i(?:t(?:e(?:\uE202[^\uE200\uE201]*)?)?)?)?)?$/, "")
       .replace(/\\\[([\s\S]*)$/, (_, inner: string) => `$$${inner}`)
       .replace(/\\\(([\s\S]*)$/, (_, inner: string) => `$$${inner}`);
   }
   return normalizeCurrencyDollars(normalizedMath, options);
 }
 
-/** Normalize math and legacy currency while leaving code and mention tags opaque. */
+/** Normalize citations, math, and legacy currency while leaving code and mention tags opaque. */
 export function normalizeMarkdownForRendering(
   text: string,
   options: NormalizationOptions = {},
diff --git a/ui/tests/markdownNormalization.test.mjs b/ui/tests/markdownNormalization.test.mjs
new file mode 100644
index 000000000..b7d04840d
--- /dev/null
+++ b/ui/tests/markdownNormalization.test.mjs
@@ -0,0 +1,33 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import { normalizeMarkdownForRendering } from "../src/markdownNormalization.ts";
+
+test("renders citation URLs and removes unresolved internal references", () => {
+  assert.equal(
+    normalizeMarkdownForRendering("结果。\uE200cite\uE202turn421719view1\uE201"),
+    "结果。",
+  );
+  assert.equal(
+    normalizeMarkdownForRendering("Result. \uE200cite\uE202https://www.alphaxiv.org/pdf/2604.26417\uE201"),
+    "Result. <https://www.alphaxiv.org/pdf/2604.26417>",
+  );
+  assert.equal(
+    normalizeMarkdownForRendering("\uE200cite\uE202turn1view0\uE202https://example.org/a\uE202https://example.org/b\uE201"),
+    "<https://example.org/a> <https://example.org/b>",
+  );
+});
+
+test("hides incomplete citation markers while streaming", () => {
+  const citation = "\uE200cite\uE202https://example.org/paper\uE201";
+  for (let end = 1; end < citation.length; end += 1) {
+    assert.equal(normalizeMarkdownForRendering(`Result. ${citation.slice(0, end)}`, { predictMath: true }), "Result. ");
+  }
+  assert.equal(normalizeMarkdownForRendering(`Result. ${citation}`, { predictMath: true }), "Result. <https://example.org/paper>");
+  assert.equal(normalizeMarkdownForRendering("\uE200cider", { predictMath: true }), "\uE200cider");
+});
+
+test("leaves citation syntax in code and mention tags untouched", () => {
+  const citation = "\uE200cite\uE202turn1view0\uE201";
+  const markdown = `\`${citation}\`\n\n\`\`\`\n${citation}\n\`\`\`\n\n<file path="${citation}">`;
+  assert.equal(normalizeMarkdownForRendering(markdown), markdown);
+});