Fix streaming

Author: Sg312

apps/sim/app/api/wand/route.ts

@@ -377,7 +377,15 @@ Use this context to calculate relative dates like "yesterday", "last week", "beg
                     }
 
                     if (eventType === 'response.output_text.delta') {
-                      const content = parsed.delta
+                      let content = ''
+                      if (typeof parsed.delta === 'string') {
+                        content = parsed.delta
+                      } else if (parsed.delta && typeof parsed.delta.text === 'string') {
+                        content = parsed.delta.text
+                      } else if (typeof parsed.text === 'string') {
+                        content = parsed.text
+                      }
+
                       if (content) {
                         chunkCount++
                         if (chunkCount === 1) {

apps/sim/providers/responses-utils.ts

@@ -359,9 +359,18 @@ export function createReadableStreamFromResponses(
             }
 
             if (eventType === 'response.output_text.delta') {
-              if (typeof event.delta === 'string' && event.delta.length > 0) {
-                fullContent += event.delta
-                controller.enqueue(encoder.encode(event.delta))
+              let deltaText = ''
+              if (typeof event.delta === 'string') {
+                deltaText = event.delta
+              } else if (event.delta && typeof event.delta.text === 'string') {
+                deltaText = event.delta.text
+              } else if (typeof event.text === 'string') {
+                deltaText = event.text
+              }
+
+              if (deltaText.length > 0) {
+                fullContent += deltaText
+                controller.enqueue(encoder.encode(deltaText))
               }
             }