diff --git a/api/server/cleanup.js b/api/server/cleanup.js
index 6a9abb8180..6d5b77196a 100644
--- a/api/server/cleanup.js
+++ b/api/server/cleanup.js
@@ -238,6 +238,9 @@ function disposeClient(client) {
         client.run.Graph.streamBuffer = null;
         client.run.Graph.clientOptions = null;
         client.run.Graph.graphState = null;
+        if (client.run.Graph.boundModel?.client) {
+          client.run.Graph.boundModel.client = null;
+        }
         client.run.Graph.boundModel = null;
         client.run.Graph.systemMessage = null;
         client.run.Graph.reasoningKey = null;
diff --git a/api/server/controllers/agents/client.js b/api/server/controllers/agents/client.js
index a0de98c5f1..8a128bcdba 100644
--- a/api/server/controllers/agents/client.js
+++ b/api/server/controllers/agents/client.js
@@ -787,6 +787,8 @@ class AgentClient extends BaseClient {
             [Callback.TOOL_ERROR]: logToolError,
           },
         });
+
+        config.signal = null;
       };
 
       await runAgent(this.options.agent, initialMessages);