openai[patch]: Properly dedupe system fingerprint (#6638)

langchain-ai · Aug 26, 2024 · 56b0d04 · 56b0d04
1 parent a64cf77
commit 56b0d04
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libs/langchain-openai/src/chat_models.ts b/libs/langchain-openai/src/chat_models.ts
@@ -1255,7 +1255,7 @@ export class ChatOpenAI<
       }
       // eslint-disable-next-line @typescript-eslint/no-explicit-any
       const generationInfo: Record<string, any> = { ...newTokenIndices };
-      if (choice.finish_reason !== undefined) {
+      if (choice.finish_reason != null) {
         generationInfo.finish_reason = choice.finish_reason;
         // Only include system fingerprint in the last chunk for now
         // to avoid concatenation issues