Update pages/generative-apis/how-to/use-batch-processing.mdx

Co-authored-by: fpagny <franckpagny@hotmail.fr>

Author: bene2k1

pages/generative-apis/how-to/use-batch-processing.mdx

@@ -8,7 +8,7 @@ dates:
 ---
 import Requirements from '@macros/iam/requirements.mdx'
 
-Batch processing allows you to submit large volumes of requests to Generative APIs asynchronously.
+Batch processing allows you to submit large volumes of requests to Generative APIs asynchronously, at a discounted price.
 Instead of sending requests one by one, you upload an input file to Object Storage and create a batch job. The service processes the requests in the background and writes the results to an output file.
 
 Batch processing is designed for: