diff --git a/src/agents/extensions/models/litellm_model.py b/src/agents/extensions/models/litellm_model.py
index 3fb0c20ea1..fd80151afb 100644
--- a/src/agents/extensions/models/litellm_model.py
+++ b/src/agents/extensions/models/litellm_model.py
@@ -234,8 +234,12 @@ async def get_response(
                     [message.model_dump()] if message is not None else []
                 )
             span_generation.span_data.usage = {
+                "requests": usage.requests,
                 "input_tokens": usage.input_tokens,
                 "output_tokens": usage.output_tokens,
+                "total_tokens": usage.total_tokens,
+                "input_tokens_details": usage.input_tokens_details.model_dump(),
+                "output_tokens_details": usage.output_tokens_details.model_dump(),
             }
 
             # Build provider_data for provider specific fields
@@ -304,8 +308,20 @@ async def stream_response(
 
             if final_response and final_response.usage:
                 span_generation.span_data.usage = {
+                    "requests": 1,
                     "input_tokens": final_response.usage.input_tokens,
                     "output_tokens": final_response.usage.output_tokens,
+                    "total_tokens": final_response.usage.total_tokens,
+                    "input_tokens_details": (
+                        final_response.usage.input_tokens_details.model_dump()
+                        if final_response.usage.input_tokens_details
+                        else {"cached_tokens": 0}
+                    ),
+                    "output_tokens_details": (
+                        final_response.usage.output_tokens_details.model_dump()
+                        if final_response.usage.output_tokens_details
+                        else {"reasoning_tokens": 0}
+                    ),
                 }
 
     @overload
diff --git a/src/agents/models/openai_chatcompletions.py b/src/agents/models/openai_chatcompletions.py
index 2ca4c11979..560fb3fe6a 100644
--- a/src/agents/models/openai_chatcompletions.py
+++ b/src/agents/models/openai_chatcompletions.py
@@ -119,8 +119,12 @@ async def get_response(
                     [message.model_dump()] if message is not None else []
                 )
             span_generation.span_data.usage = {
+                "requests": usage.requests,
                 "input_tokens": usage.input_tokens,
                 "output_tokens": usage.output_tokens,
+                "total_tokens": usage.total_tokens,
+                "input_tokens_details": usage.input_tokens_details.model_dump(),
+                "output_tokens_details": usage.output_tokens_details.model_dump(),
             }
 
             # Build provider_data for provider_specific_fields
@@ -209,8 +213,20 @@ async def stream_response(
 
             if final_response and final_response.usage:
                 span_generation.span_data.usage = {
+                    "requests": 1,
                     "input_tokens": final_response.usage.input_tokens,
                     "output_tokens": final_response.usage.output_tokens,
+                    "total_tokens": final_response.usage.total_tokens,
+                    "input_tokens_details": (
+                        final_response.usage.input_tokens_details.model_dump()
+                        if final_response.usage.input_tokens_details
+                        else {"cached_tokens": 0}
+                    ),
+                    "output_tokens_details": (
+                        final_response.usage.output_tokens_details.model_dump()
+                        if final_response.usage.output_tokens_details
+                        else {"reasoning_tokens": 0}
+                    ),
                 }
 
     @overload