diff --git a/x-pack/plugins/actions/server/lib/get_token_count_from_openai_stream.ts b/x-pack/plugins/actions/server/lib/get_token_count_from_openai_stream.ts
index 0aa5fca22d0ff..790a59fe6097a 100644
--- a/x-pack/plugins/actions/server/lib/get_token_count_from_openai_stream.ts
+++ b/x-pack/plugins/actions/server/lib/get_token_count_from_openai_stream.ts
@@ -90,7 +90,9 @@ export async function getTokenCountFromOpenAIStream({
           delta: { content?: string; function_call?: { name?: string; arguments: string } };
         }>;
       } => {
-        return 'object' in line && line.object === 'chat.completion.chunk';
+        return (
+          'object' in line && line.object === 'chat.completion.chunk' && line.choices.length > 0
+        );
       }
     )
     .reduce(
diff --git a/x-pack/plugins/inference/server/chat_complete/adapters/openai/openai_adapter.ts b/x-pack/plugins/inference/server/chat_complete/adapters/openai/openai_adapter.ts
index 3a89f100f2879..62af864a6037d 100644
--- a/x-pack/plugins/inference/server/chat_complete/adapters/openai/openai_adapter.ts
+++ b/x-pack/plugins/inference/server/chat_complete/adapters/openai/openai_adapter.ts
@@ -74,7 +74,7 @@ export const openAIAdapter: InferenceConnectorAdapter = {
       }),
       filter(
         (line): line is OpenAI.ChatCompletionChunk =>
-          'object' in line && line.object === 'chat.completion.chunk'
+          'object' in line && line.object === 'chat.completion.chunk' && line.choices.length > 0
       ),
       map((chunk): ChatCompletionChunkEvent => {
         const delta = chunk.choices[0].delta;
diff --git a/x-pack/plugins/observability_solution/observability_ai_assistant/server/service/client/adapters/process_openai_stream.ts b/x-pack/plugins/observability_solution/observability_ai_assistant/server/service/client/adapters/process_openai_stream.ts
index 59dbd24451c09..e9dbd259182ba 100644
--- a/x-pack/plugins/observability_solution/observability_ai_assistant/server/service/client/adapters/process_openai_stream.ts
+++ b/x-pack/plugins/observability_solution/observability_ai_assistant/server/service/client/adapters/process_openai_stream.ts
@@ -98,7 +98,7 @@ export function processOpenAiStream({
         }),
         filter(
           (line): line is CreateChatCompletionResponseChunk =>
-            'object' in line && line.object === 'chat.completion.chunk'
+            'object' in line && line.object === 'chat.completion.chunk' && line.choices.length > 0
         ),
         map((chunk): ChatCompletionChunkEvent => {
           const delta = chunk.choices[0].delta;