ok

app/api/v1/embeddings.py

@@ -27,8 +27,13 @@ _MAX_IMAGE_BYTES = 15 * 1024 * 1024
 
 
 def _validate_image(raw: bytes, source: str) -> Image.Image:
+    # FIX: Check if the file is completely empty (0 bytes)
+    if not raw:
+        raise ValueError(f"File {source} is empty (0 bytes).")
+        
     if len(raw) > _MAX_IMAGE_BYTES:
         raise ValueError(f"Image {source} exceeds 15 MB limit")
+        
     try:
         img = Image.open(io.BytesIO(raw))
         img.load()
@@ -149,7 +154,10 @@ async def create_vision_embeddings_file(
     for f in files:
         t0 = time.perf_counter()
         try:
+            # FIX: Guarantee the file cursor is at the beginning before reading!
+            await f.seek(0)
             raw = await f.read()
+            
             img = await asyncio.get_running_loop().run_in_executor(_thread_pool, _validate_image, raw, f.filename or "unknown")
             images.append(img)
         except Exception as exc:
@@ -299,4 +307,4 @@ async def create_vision_embeddings_url(
         success_count=success_count,
         failed_count=failed_count,
         results=item_results,
-    )
+    )