diff --git a/.changeset/late-timers-yell.md b/.changeset/late-timers-yell.md
new file mode 100644
index 000000000..4ddb59a9e
--- /dev/null
+++ b/.changeset/late-timers-yell.md
@@ -0,0 +1,5 @@
+---
+"@assistant-ui/react": patch
+---
+
+fix: useDangerousInBrowserRuntime correct options forwarding
diff --git a/packages/react/src/runtimes/dangerous-in-browser/useDangerousInBrowserRuntime.ts b/packages/react/src/runtimes/dangerous-in-browser/useDangerousInBrowserRuntime.ts
index e06949b20..c18f78a35 100644
--- a/packages/react/src/runtimes/dangerous-in-browser/useDangerousInBrowserRuntime.ts
+++ b/packages/react/src/runtimes/dangerous-in-browser/useDangerousInBrowserRuntime.ts
@@ -4,14 +4,16 @@ import {
   DangerousInBrowserAdapter,
   DangerousInBrowserAdapterOptions,
 } from "./DangerousInBrowserAdapter";
+import { splitLocalRuntimeOptions } from "../local/LocalRuntimeOptions";
 
 export type DangerousInBrowserRuntimeOptions =
   DangerousInBrowserAdapterOptions & LocalRuntimeOptions;
 
-export const useDangerousInBrowserRuntime = ({
-  initialMessages,
-  ...options
-}: DangerousInBrowserRuntimeOptions) => {
-  const [adapter] = useState(() => new DangerousInBrowserAdapter(options));
-  return useLocalRuntime(adapter, { initialMessages });
+export const useDangerousInBrowserRuntime = (
+  options: DangerousInBrowserRuntimeOptions,
+) => {
+  const { localRuntimeOptions, otherOptions } =
+    splitLocalRuntimeOptions(options);
+  const [adapter] = useState(() => new DangerousInBrowserAdapter(otherOptions));
+  return useLocalRuntime(adapter, localRuntimeOptions);
 };
diff --git a/packages/react/src/runtimes/edge/useEdgeRuntime.ts b/packages/react/src/runtimes/edge/useEdgeRuntime.ts
index 78f3741ec..7e717d1ce 100644
--- a/packages/react/src/runtimes/edge/useEdgeRuntime.ts
+++ b/packages/react/src/runtimes/edge/useEdgeRuntime.ts
@@ -1,19 +1,13 @@
 import { LocalRuntimeOptions, useLocalRuntime } from "..";
 import { useState } from "react";
 import { EdgeChatAdapterOptions, EdgeChatAdapter } from "./EdgeChatAdapter";
+import { splitLocalRuntimeOptions } from "../local/LocalRuntimeOptions";
 
 export type EdgeRuntimeOptions = EdgeChatAdapterOptions & LocalRuntimeOptions;
 
-export const useEdgeRuntime = ({
-  initialMessages,
-  maxToolRoundtrips,
-  adapters,
-  ...options
-}: EdgeRuntimeOptions) => {
-  const [adapter] = useState(() => new EdgeChatAdapter(options));
-  return useLocalRuntime(adapter, {
-    initialMessages,
-    maxToolRoundtrips,
-    adapters,
-  });
+export const useEdgeRuntime = (options: EdgeRuntimeOptions) => {
+  const { localRuntimeOptions, otherOptions } =
+    splitLocalRuntimeOptions(options);
+  const [adapter] = useState(() => new EdgeChatAdapter(otherOptions));
+  return useLocalRuntime(adapter, localRuntimeOptions);
 };
diff --git a/packages/react/src/runtimes/local/LocalRuntimeOptions.tsx b/packages/react/src/runtimes/local/LocalRuntimeOptions.tsx
index 90ca9aae3..a695418f9 100644
--- a/packages/react/src/runtimes/local/LocalRuntimeOptions.tsx
+++ b/packages/react/src/runtimes/local/LocalRuntimeOptions.tsx
@@ -14,3 +14,13 @@ export type LocalRuntimeOptions = {
       }
     | undefined;
 };
+
+export const splitLocalRuntimeOptions = <T extends LocalRuntimeOptions>(
+  options: T,
+) => {
+  const { initialMessages, maxToolRoundtrips, adapters, ...rest } = options;
+  return {
+    localRuntimeOptions: { initialMessages, maxToolRoundtrips, adapters },
+    otherOptions: rest,
+  };
+};