diff --git a/kong/llm/drivers/anthropic.lua b/kong/llm/drivers/anthropic.lua
index c9b46525fb5..f873ce454e0 100644
--- a/kong/llm/drivers/anthropic.lua
+++ b/kong/llm/drivers/anthropic.lua
@@ -93,8 +93,8 @@ local transformers_to = {
       return nil, nil, err
     end
 
-    messages.temperature = request_table.temperature or (model.options and model.options.temperature) or nil
-    messages.max_tokens = request_table.max_tokens or (model.options and model.options.max_tokens) or nil
+    messages.temperature = (model.options and model.options.temperature) or request_table.temperature or nil
+    messages.max_tokens = (model.options and model.options.max_tokens) or request_table.max_tokens or nil
     messages.model = model.name or request_table.model
     messages.stream = request_table.stream or false  -- explicitly set this if nil
 
@@ -110,9 +110,8 @@ local transformers_to = {
       return nil, nil, err
     end
 
-    prompt.temperature = request_table.temperature or (model.options and model.options.temperature) or nil
-    prompt.max_tokens_to_sample = request_table.max_tokens or (model.options and model.options.max_tokens) or nil
-    prompt.model = model.name
+    prompt.temperature = (model.options and model.options.temperature) or request_table.temperature or nil
+    prompt.max_tokens_to_sample = (model.options and model.options.max_tokens) or request_table.max_tokens or nil
     prompt.model = model.name or request_table.model
     prompt.stream = request_table.stream or false  -- explicitly set this if nil
 
diff --git a/kong/llm/drivers/openai.lua b/kong/llm/drivers/openai.lua
index b08f29bc325..1c592e5ef60 100644
--- a/kong/llm/drivers/openai.lua
+++ b/kong/llm/drivers/openai.lua
@@ -18,7 +18,7 @@ end
 
 local transformers_to = {
   ["llm/v1/chat"] = function(request_table, model_info, route_type)
-    request_table.model = request_table.model or model_info.name
+    request_table.model = model_info.name or request_table.model
     request_table.stream = request_table.stream or false  -- explicitly set this
     request_table.top_k = nil  -- explicitly remove unsupported default
 
@@ -26,7 +26,7 @@ local transformers_to = {
   end,
 
   ["llm/v1/completions"] = function(request_table, model_info, route_type)
-    request_table.model = model_info.name
+    request_table.model = model_info.name or request_table.model
     request_table.stream = request_table.stream or false -- explicitly set this
     request_table.top_k = nil  -- explicitly remove unsupported default
 
diff --git a/kong/llm/drivers/shared.lua b/kong/llm/drivers/shared.lua
index 0e60f89ae4f..b41841ef0fd 100644
--- a/kong/llm/drivers/shared.lua
+++ b/kong/llm/drivers/shared.lua
@@ -265,7 +265,7 @@ function _M.to_ollama(request_table, model)
 
   -- common parameters
   input.stream = request_table.stream or false -- for future capability
-  input.model = model.name
+  input.model = model.name or request_table.name
 
   if model.options then
     input.options = {}