diff --git a/.changeset/great-students-turn.md b/.changeset/great-students-turn.md
new file mode 100644
index 000000000000..af2a95e7123a
--- /dev/null
+++ b/.changeset/great-students-turn.md
@@ -0,0 +1,5 @@
+---
+'ai': patch
+---
+
+ai/core: Fix openai provider streamObject for gpt-4-turbo
diff --git a/packages/core/openai/openai-chat-language-model.ts b/packages/core/openai/openai-chat-language-model.ts
index a741f8ed74ab..1e3a5bf0c390 100644
--- a/packages/core/openai/openai-chat-language-model.ts
+++ b/packages/core/openai/openai-chat-language-model.ts
@@ -126,7 +126,16 @@ export class OpenAIChatLanguageModel implements LanguageModelV1 {
         return {
           ...baseArgs,
           tool_choice: { type: 'function', function: { name: mode.tool.name } },
-          tools: [{ type: 'function', function: mode.tool }],
+          tools: [
+            {
+              type: 'function',
+              function: {
+                name: mode.tool.name,
+                description: mode.tool.description,
+                parameters: mode.tool.parameters,
+              },
+            },
+          ],
         };
       }
 
diff --git a/packages/core/openai/openai-chat-settings.ts b/packages/core/openai/openai-chat-settings.ts
index 62f064664fa0..3fe94c05ed10 100644
--- a/packages/core/openai/openai-chat-settings.ts
+++ b/packages/core/openai/openai-chat-settings.ts
@@ -1,21 +1,20 @@
 // https://platform.openai.com/docs/models
 export type OpenAIChatModelId =
-  | 'gpt-4'
-  | 'gpt-4-0314'
-  | 'gpt-4-0613'
+  | 'gpt-4-turbo'
+  | 'gpt-4-turbo-2024-04-09'
   | 'gpt-4-turbo-preview'
-  | 'gpt-4-1106-preview'
   | 'gpt-4-0125-preview'
+  | 'gpt-4-1106-preview'
   | 'gpt-4-vision-preview'
+  | 'gpt-4'
+  | 'gpt-4-0613'
   | 'gpt-4-32k'
-  | 'gpt-4-32k-0314'
   | 'gpt-4-32k-0613'
-  | 'gpt-3.5-turbo'
   | 'gpt-3.5-turbo-0125'
+  | 'gpt-3.5-turbo'
   | 'gpt-3.5-turbo-1106'
-  | 'gpt-3.5-turbo-0301'
-  | 'gpt-3.5-turbo-0613'
   | 'gpt-3.5-turbo-16k'
+  | 'gpt-3.5-turbo-0613'
   | 'gpt-3.5-turbo-16k-0613'
   | (string & {});