diff --git a/marker/services/azureopenai.py b/marker/services/azureopenai.py
new file mode 100644
index 00000000..52e9e42d
--- /dev/null
+++ b/marker/services/azureopenai.py
@@ -0,0 +1,154 @@
+import time
+import json
+import base64
+from io import BytesIO
+from typing import Annotated, List, Union
+
+import openai
+import PIL
+from openai import AzureOpenAI
+from openai.types.chat import ChatCompletion
+from openai import RateLimitError, OpenAIError
+
+from PIL import Image
+from pydantic import BaseModel
+
+from marker.services import BaseService
+from marker.schema.blocks import Block
+
+
+class AzureOpenAIService(BaseService):
+    """
+    A service that calls Azure OpenAI for ChatCompletion with images + text prompts.
+    Uses the new openai.Client() format for compatibility with openai>=1.0.0.
+    """
+
+    def __init__(
+        self,
+        azure_api_key: str,
+        azure_base_url: str,
+        azure_api_version: str = "2023-03-15-preview",
+        azure_deployment_name: str = "gpt-4o",
+        max_retries: int = 3,
+        timeout: int = 60,
+    ):
+        self.azure_api_key = azure_api_key
+        self.azure_base_url = azure_base_url
+        self.azure_api_version = azure_api_version
+        self.azure_deployment_name = azure_deployment_name
+        self.max_retries = max_retries
+        self.timeout = timeout
+
+        # Call parent class's constructor if needed
+        super().__init__()
+
+    # Azure OpenAI configuration
+    azure_base_url: Annotated[
+        str, "The base URL for your Azure OpenAI resource (no trailing slash)."
+    ] = "https://YOUR-RESOURCE-NAME.openai.azure.com"
+    azure_api_key: Annotated[str, "Your Azure OpenAI key"] = None
+    azure_api_version: Annotated[str, "Azure OpenAI API version."] = (
+        "2023-03-15-preview"
+    )
+    azure_deployment_name: Annotated[
+        str, "The deployment name for your model in Azure."
+    ] = "gpt-4o"  # Example deployment name
+
+    # Standard fallback if not provided
+    max_retries: int = 3
+    timeout: int = 60
+
+    def image_to_base64(self, image: Image.Image) -> str:
+        image_bytes = BytesIO()
+        image.save(image_bytes, format="WEBP")
+        return base64.b64encode(image_bytes.getvalue()).decode("utf-8")
+
+    def prepare_images(
+        self, images: Union[Image.Image, List[Image.Image]]
+    ) -> List[dict]:
+        if isinstance(images, Image.Image):
+            images = [images]
+        return [
+            {
+                "type": "image_url",
+                "image_url": f"data:image/webp;base64,{self.image_to_base64(img)}",
+            }
+            for img in images
+        ]
+
+    def get_client(self) -> AzureOpenAI:
+        """
+        Returns an OpenAI client configured for Azure OpenAI.
+        """
+        return AzureOpenAI(
+            api_key=self.azure_api_key,
+            azure_endpoint=f"{self.azure_base_url}",
+            api_version=self.azure_api_version,
+            timeout=self.timeout,
+        )
+
+    def __call__(
+        self,
+        prompt: str,
+        image: Union[Image.Image, List[Image.Image]],
+        block: Block,
+        response_schema: type[BaseModel],
+        max_retries: int | None = None,
+        timeout: int | None = None,
+    ):
+        """
+        Make a ChatCompletion request to Azure OpenAI with a text+image prompt.
+        Parses the model's output as JSON and validates it against the provided schema.
+        """
+        if max_retries is None:
+            max_retries = self.max_retries
+        if timeout is None:
+            timeout = self.timeout
+
+        if not isinstance(image, list):
+            image = [image]
+
+        image_data = self.prepare_images(image)
+        messages = [
+            {
+                "role": "user",
+                "content": json.dumps(
+                    [
+                        *image_data,
+                        {"type": "text", "text": prompt},
+                    ]
+                ),
+            }
+        ]
+
+        client = self.get_client()
+
+        tries = 0
+        while tries < max_retries:
+            try:
+                response: ChatCompletion = client.chat.completions.create(
+                    model=self.azure_deployment_name,
+                    messages=messages,
+                )
+
+                response_text = response.choices[0].message.content
+                usage = response.usage
+                total_tokens = usage.total_tokens if usage else 0
+                block.update_metadata(llm_tokens_used=total_tokens, llm_request_count=1)
+
+                parsed_json = json.loads(response_text)
+                return response_schema.model_validate(parsed_json)
+
+            except (OpenAIError, RateLimitError) as e:
+                tries += 1
+                wait_time = tries * 3
+                print(
+                    f"Azure OpenAI rate-limit/timeout error: {e}. "
+                    f"Retrying in {wait_time}s... (Attempt {tries}/{max_retries})"
+                )
+                time.sleep(wait_time)
+            except Exception as e:
+                print(f"Azure OpenAI error: {e}")
+                break
+
+        return {}
diff --git a/pyproject.toml b/pyproject.toml
index d2342860..0737e6f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,6 +36,7 @@ filetype = "^1.2.0"
 scikit-learn = "^1.6.1"
 google-genai = "^1.0.0"
 anthropic = "^0.46.0"
+openai = "^1.65.2"
 
 # Optional dependencies for documents
 mammoth = {version = "^1.9.0", optional = true}