diff --git a/.changeset/wicked-masks-tell.md b/.changeset/wicked-masks-tell.md
new file mode 100644
index 00000000..644f9035
--- /dev/null
+++ b/.changeset/wicked-masks-tell.md
@@ -0,0 +1,5 @@
+---
+'@openai/agents-openai': minor
+---
+
+Fix incorrect handling of chat completions mode for handoff
diff --git a/packages/agents-openai/src/openaiChatCompletionsModel.ts b/packages/agents-openai/src/openaiChatCompletionsModel.ts
index 0770fc96..a9b7c775 100644
--- a/packages/agents-openai/src/openaiChatCompletionsModel.ts
+++ b/packages/agents-openai/src/openaiChatCompletionsModel.ts
@@ -67,7 +67,7 @@ export class OpenAIChatCompletionsModel implements Model {
     const output: protocol.OutputModelItem[] = [];
     if (response.choices && response.choices[0]) {
       const message = response.choices[0].message;
-      if (message.content !== undefined) {
+      if (message.content !== undefined && message.content !== null) {
         const { content, ...rest } = message;
         output.push({
           id: response.id,