diff --git a/langchain/callbacks/openai_info.py b/langchain/callbacks/openai_info.py
index c66ec7ce873..549720e7c4d 100644
--- a/langchain/callbacks/openai_info.py
+++ b/langchain/callbacks/openai_info.py
@@ -32,6 +32,7 @@ MODEL_COST_PER_1K_TOKENS = {
     "gpt-3.5-turbo-16k-completion": 0.004,
     "gpt-3.5-turbo-16k-0613-completion": 0.004,
     # Others
+    "gpt-35-turbo": 0.002,  # Azure OpenAI version of ChatGPT
     "text-ada-001": 0.0004,
     "ada": 0.0004,
     "text-babbage-001": 0.0005,