diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
index a2d0cdfe0..f7f3e4b05 100644
--- a/.buildkite/pipeline.yml
+++ b/.buildkite/pipeline.yml
@@ -305,3 +305,38 @@ steps:
                 hostPath:
                   path: /mnt/hf-cache
                   type: DirectoryOrCreate
+
+  - label: "Bagel Text2Img Model Test with H100"
+    timeout_in_minutes: 30
+    depends_on: image-build
+    commands:
+      - export VLLM_WORKER_MULTIPROC_METHOD=spawn
+      - pytest -s -v tests/e2e/offline_inference/test_bagel_text2img.py
+    agents:
+      queue: "mithril-h100-pool"
+    plugins:
+      - kubernetes:
+          podSpec:
+            containers:
+              - image: public.ecr.aws/q9t5s3a7/vllm-ci-test-repo:$BUILDKITE_COMMIT
+                resources:
+                  limits:
+                    nvidia.com/gpu: 1
+                volumeMounts:
+                  - name: devshm
+                    mountPath: /dev/shm
+                  - name: hf-cache
+                    mountPath: /root/.cache/huggingface
+                env:
+                  - name: HF_HOME
+                    value: /root/.cache/huggingface
+            nodeSelector:
+              node.kubernetes.io/instance-type: gpu-h100-sxm
+            volumes:
+              - name: devshm
+                emptyDir:
+                  medium: Memory
+              - name: hf-cache
+                hostPath:
+                  path: /mnt/hf-cache
+                  type: DirectoryOrCreate
diff --git a/pyproject.toml b/pyproject.toml
index 3e1149099..e1fafa606 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,8 @@ dev = [
     "psutil>=7.2.0",
     "soundfile>=0.13.1",
     "imageio[ffmpeg]>=0.6.0",
-    "opencv-python>=4.12.0.88"
+    "opencv-python>=4.12.0.88",
+    "mooncake-transfer-engine==0.3.8.post1"
 ]
 
 docs = [
diff --git a/tests/e2e/offline_inference/stage_configs/bagel_mooncake_ci.yaml b/tests/e2e/offline_inference/stage_configs/bagel_mooncake_ci.yaml
new file mode 100644
index 000000000..4c6a67e8b
--- /dev/null
+++ b/tests/e2e/offline_inference/stage_configs/bagel_mooncake_ci.yaml
@@ -0,0 +1,85 @@
+# stage config for running BAGEL with Mooncake connector for CI e2e tests.
+# This config is optimized for single GPU tests with Mooncake inter-stage communication.
+
+stage_args:
+  - stage_id: 0
+    stage_type: llm
+    runtime:
+      devices: "0"
+      max_batch_size: 1
+    engine_args:
+      model_stage: thinker
+      model_arch: BagelForConditionalGeneration
+      worker_type: ar
+      scheduler_cls: vllm_omni.core.sched.omni_ar_scheduler.OmniARScheduler
+      gpu_memory_utilization: 0.60
+      enforce_eager: true
+      trust_remote_code: true
+      engine_output_type: text
+      distributed_executor_backend: mp
+      enable_prefix_caching: false
+      max_num_batched_tokens: 32768
+      tensor_parallel_size: 1
+      omni_kv_config:
+        need_send_cache: true
+        kv_transfer_criteria:
+          type: prefill_finished
+    final_output: true
+    final_output_type: text
+    is_comprehension: true
+    default_sampling_params:
+      temperature: 0.4
+      top_p: 0.9
+      top_k: 1
+      max_tokens: 2048
+      seed: 52
+      detokenize: true
+      repetition_penalty: 1.05
+    output_connectors:
+      to_stage_1: mooncake_connector
+  - stage_id: 1
+    stage_type: diffusion
+    runtime:
+      devices: "0"
+      max_batch_size: 1
+    engine_args:
+      model_stage: dit
+      gpu_memory_utilization: 0.4
+      enforce_eager: true
+      trust_remote_code: true
+      engine_output_type: image
+      distributed_executor_backend: mp
+      enable_prefix_caching: false
+      max_num_batched_tokens: 32768
+      tensor_parallel_size: 1
+      omni_kv_config:
+        need_recv_cache: true
+    engine_input_source: [0]
+    final_output: true
+    final_output_type: image
+    is_comprehension: false
+    default_sampling_params:
+      seed: 52
+    input_connectors:
+      from_stage_0: mooncake_connector
+
+# Top-level runtime config with Mooncake connector
+runtime:
+  enabled: true
+  defaults:
+    window_size: -1
+    max_inflight: 1
+  connectors:
+    mooncake_connector:
+      name: MooncakeConnector
+      extra:
+        host: "${MOONCAKE_HOST}"
+        metadata_server: "http://${MOONCAKE_HOST}:${MOONCAKE_HTTP_PORT}/metadata"
+        master: "${MOONCAKE_HOST}:${MOONCAKE_RPC_PORT}"
+        segment: 64000000
+        localbuf: 64000000
+        proto: tcp
+  edges:
+    - from: 0
+      to: 1
+      window_size: -1
diff --git a/tests/e2e/offline_inference/stage_configs/bagel_sharedmemory_ci.yaml b/tests/e2e/offline_inference/stage_configs/bagel_sharedmemory_ci.yaml
new file mode 100644
index 000000000..67ff7309f
--- /dev/null
+++ b/tests/e2e/offline_inference/stage_configs/bagel_sharedmemory_ci.yaml
@@ -0,0 +1,83 @@
+# stage config for running BAGEL with SharedMemory connector for CI e2e tests.
+# This config is optimized for single GPU tests with SharedMemory inter-stage communication.
+
+stage_args:
+  - stage_id: 0
+    stage_type: llm
+    runtime:
+      devices: "0"
+      max_batch_size: 1
+    engine_args:
+      model_stage: thinker
+      model_arch: BagelForConditionalGeneration
+      worker_type: ar
+      scheduler_cls: vllm_omni.core.sched.omni_ar_scheduler.OmniARScheduler
+      gpu_memory_utilization: 0.65
+      enforce_eager: true
+      trust_remote_code: true
+      engine_output_type: text
+      distributed_executor_backend: "mp"
+      enable_prefix_caching: false
+      max_num_batched_tokens: 32768
+      tensor_parallel_size: 1
+      omni_kv_config:
+        need_send_cache: true
+        kv_transfer_criteria:
+          type: prefill_finished #or special token generated
+    final_output: true
+    final_output_type: text
+    is_comprehension: true
+    default_sampling_params:
+      temperature: 0.4
+      top_p: 0.9
+      top_k: 1
+      max_tokens: 2048
+      seed: 52
+      detokenize: True
+      repetition_penalty: 1.05
+
+  - stage_id: 1
+    stage_type: diffusion
+    runtime:
+      devices: "0"
+      max_batch_size: 1
+    engine_args:
+      model_stage: dit
+      gpu_memory_utilization: 0.4
+      enforce_eager: true
+      trust_remote_code: true
+      engine_output_type: image
+      distributed_executor_backend: "mp"
+      enable_prefix_caching: false
+      max_num_batched_tokens: 32768
+      tensor_parallel_size: 1
+      omni_kv_config:
+        need_recv_cache: true
+    engine_input_source: [0]
+
+    final_output: true
+    final_output_type: image
+    is_comprehension: false
+    default_sampling_params:
+      seed: 52
+
+# Runtime edges
+runtime:
+  enabled: true
+  defaults:
+    window_size: -1
+    max_inflight: 1
+
+  # Distributed connectors configuration (optional)
+  # More connectors will be supported in the future.
+  connectors:
+    shared_memory_connector:
+      name: SharedMemoryConnector
+      extra:
+        shm_threshold_bytes: 65536 # 64KB threshold
+
+
+  edges:
+    - from: 0
+      to: 1
+      window_size: -1
diff --git a/tests/e2e/offline_inference/test_bagel_text2img.py b/tests/e2e/offline_inference/test_bagel_text2img.py
new file mode 100644
index 000000000..777af52a7
--- /dev/null
+++ b/tests/e2e/offline_inference/test_bagel_text2img.py
@@ -0,0 +1,308 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+"""
+End-to-end test for Bagel text2img generation.
+
+This test validates that the Bagel model generates images that match
+expected reference pixel values within a ±5 tolerance.
+
+Equivalent to running:
+    python3 examples/offline_inference/bagel/end2end.py \
+        --prompts "A futuristic city skyline at twilight, cyberpunk style" \
+        --modality text2img --step 15
+"""
+
+import os
+
+os.environ["VLLM_WORKER_MULTIPROC_METHOD"] = "spawn"
+os.environ["VLLM_TEST_CLEAN_GPU_MEMORY"] = "1"
+
+import signal
+import socket
+import subprocess
+import tempfile
+import time
+from pathlib import Path
+from typing import Any
+
+import pytest
+from PIL import Image
+
+from tests.utils import hardware_test
+from vllm_omni.entrypoints.omni import Omni
+
+# Reference pixel data extracted from the known-good output image
+# Each entry contains (x, y) position and expected (R, G, B) values
+# "Generated with seed=52, num_inference_steps=15,
+# prompt='A futuristic city skyline at twilight, cyberpunk style'"
+REFERENCE_PIXELS = [
+    {"position": (100, 100), "rgb": (68, 107, 134)},
+    {"position": (400, 50), "rgb": (95, 139, 166)},
+    {"position": (700, 100), "rgb": (99, 122, 151)},
+    {"position": (150, 400), "rgb": (111, 125, 153)},
+    {"position": (512, 512), "rgb": (97, 107, 131)},
+    {"position": (700, 400), "rgb": (48, 64, 98)},
+    {"position": (100, 700), "rgb": (79, 63, 84)},
+    {"position": (400, 700), "rgb": (40, 58, 79)},
+    {"position": (700, 700), "rgb": (60, 75, 103)},
+    {"position": (256, 256), "rgb": (97, 128, 156)},
+]
+
+# Maximum allowed difference per color channel
+PIXEL_TOLERANCE = 5
+
+# Default test prompt
+DEFAULT_PROMPT = "<|im_start|>A futuristic city skyline at twilight, cyberpunk style<|im_end|>"
+
+
+def _find_free_port() -> int:
+    """Find and return a free ephemeral port by binding to port 0."""
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.bind(("127.0.0.1", 0))
+        s.listen(1)
+        port = s.getsockname()[1]
+    return port
+
+
+def _configure_sampling_params(omni: Omni, max_tokens: int = 1, num_inference_steps: int = 15) -> list:
+    """Configure sampling parameters for Bagel text2img generation.
+
+    Args:
+        omni: The Omni instance to get default params from.
+        max_tokens: Maximum tokens for the first stage.
+        num_inference_steps: Number of inference steps for the diffusion stage.
+
+    Returns:
+        Configured sampling params list.
+    """
+    params_list = omni.default_sampling_params_list
+    params_list[0].max_tokens = max_tokens  # type: ignore
+    if len(params_list) > 1:
+        params_list[1].num_inference_steps = num_inference_steps  # type: ignore
+    return params_list
+
+
+def _extract_generated_image(omni_outputs: list) -> Image.Image | None:
+    """Extract the generated image from Omni outputs.
+
+    Args:
+        omni_outputs: List of outputs from omni.generate().
+
+    Returns:
+        The first generated PIL Image, or None if no image found.
+    """
+    for req_output in omni_outputs:
+        if images := getattr(req_output, "images", None):
+            return images[0]
+        if hasattr(req_output, "request_output") and req_output.request_output:
+            for stage_out in req_output.request_output:
+                if hasattr(stage_out, "images") and stage_out.images:
+                    return stage_out.images[0]
+    return None
+
+
+def _validate_pixels(
+    image: Image.Image,
+    reference_pixels: list[dict[str, Any]] = REFERENCE_PIXELS,
+    tolerance: int = PIXEL_TOLERANCE,
+) -> None:
+    """Validate that image pixels match expected reference values.
+
+    Args:
+        image: The PIL Image to validate.
+        reference_pixels: List of dicts with 'position' (x, y) and 'rgb' (R, G, B).
+        tolerance: Maximum allowed difference per color channel.
+
+    Raises:
+        AssertionError: If any pixel differs beyond tolerance.
+    """
+    for ref in reference_pixels:
+        x, y = ref["position"]
+        expected = ref["rgb"]
+        actual = image.getpixel((x, y))[:3]
+        assert all(abs(a - e) <= tolerance for a, e in zip(actual, expected)), (
+            f"Pixel mismatch at ({x}, {y}): expected {expected}, got {actual}"
+        )
+
+
+def _generate_bagel_image(omni: Omni, prompt: str = DEFAULT_PROMPT) -> Image.Image:
+    """Generate an image using Bagel model with configured parameters.
+
+    Args:
+        omni: The Omni instance to use for generation.
+        prompt: The text prompt for image generation.
+
+    Returns:
+        The generated PIL Image.
+
+    Raises:
+        AssertionError: If no image is generated or size is incorrect.
+    """
+    params_list = _configure_sampling_params(omni)
+
+    omni_outputs = list(
+        omni.generate(
+            prompts=[{"prompt": prompt, "modalities": ["image"]}],
+            sampling_params_list=params_list,
+        )
+    )
+
+    generated_image = _extract_generated_image(omni_outputs)
+    assert generated_image is not None, "No images generated"
+    assert generated_image.size == (1024, 1024), f"Expected 1024x1024, got {generated_image.size}"
+
+    return generated_image
+
+
+@pytest.mark.core_model
+@pytest.mark.diffusion
+@hardware_test(res={"cuda": "H100"})
+def test_bagel_text2img_shared_memory_connector():
+    """Test Bagel text2img with shared memory connector."""
+    config_path = str(Path(__file__).parent / "stage_configs" / "bagel_sharedmemory_ci.yaml")
+    omni = Omni(model="ByteDance-Seed/BAGEL-7B-MoT", stage_configs_path=config_path)
+
+    try:
+        generated_image = _generate_bagel_image(omni)
+        _validate_pixels(generated_image)
+    finally:
+        omni.close()
+
+
+def _wait_for_port(host: str, port: int, timeout: int = 30) -> bool:
+    """Wait for a port to become available.
+
+    Args:
+        host: The host address.
+        port: The port number.
+        timeout: Maximum seconds to wait.
+
+    Returns:
+        True if port becomes available, False otherwise.
+    """
+    for _ in range(timeout):
+        try:
+            with socket.create_connection((host, port), timeout=1):
+                return True
+        except (TimeoutError, ConnectionRefusedError):
+            time.sleep(1)
+    return False
+
+
+def _cleanup_mooncake_processes(timeout_secs: int = 5) -> None:
+    """Clean up any existing mooncake_master processes.
+
+    Args:
+        timeout_secs: Maximum seconds to wait for graceful termination.
+    """
+    subprocess.run(
+        ["pkill", "-f", "mooncake_master"],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+    )
+    start_time = time.time()
+    while time.time() - start_time < timeout_secs:
+        result = subprocess.run(
+            ["pgrep", "-f", "mooncake_master"],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+        )
+        if result.returncode != 0:
+            break
+        time.sleep(0.5)
+    else:
+        subprocess.run(
+            ["pkill", "-9", "-f", "mooncake_master"],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+        )
+    time.sleep(1)
+
+
+def _load_mooncake_config(host: str, rpc_port: int, http_port: int) -> str:
+    """Load Mooncake config from YAML and substitute placeholders.
+
+    Args:
+        host: Mooncake host address.
+        rpc_port: RPC port for Mooncake master.
+        http_port: HTTP metadata server port.
+
+    Returns:
+        Path to the temporary config file with substituted values.
+    """
+    config_path = str(Path(__file__).parent / "stage_configs" / "bagel_mooncake_ci.yaml")
+    with open(config_path) as f:
+        config_content = f.read()
+
+    # Substitute placeholders
+    config_content = config_content.replace("${MOONCAKE_HOST}", host)
+    config_content = config_content.replace("${MOONCAKE_RPC_PORT}", str(rpc_port))
+    config_content = config_content.replace("${MOONCAKE_HTTP_PORT}", str(http_port))
+
+    # Write to temp file
+    temp_file = tempfile.NamedTemporaryFile(mode="w", suffix=".yaml", delete=False)
+    temp_file.write(config_content)
+    temp_file.close()
+    return temp_file.name
+
+
+@pytest.mark.core_model
+@pytest.mark.diffusion
+@hardware_test(res={"cuda": "H100"})
+def test_bagel_text2img_mooncake_connector():
+    """Test Bagel text2img with Mooncake connector for inter-stage communication."""
+    MOONCAKE_HOST = "127.0.0.1"
+    MOONCAKE_RPC_PORT = _find_free_port()
+    MOONCAKE_HTTP_PORT = _find_free_port()
+    MOONCAKE_METRICS_PORT = _find_free_port()
+
+    mooncake_master_proc = None
+    temp_config_file = None
+    omni = None
+
+    try:
+        _cleanup_mooncake_processes()
+
+        # Start mooncake_master
+        mooncake_master_proc = subprocess.Popen(
+            [
+                "mooncake_master",
+                f"--rpc_port={MOONCAKE_RPC_PORT}",
+                "--enable_http_metadata_server=true",
+                "--http_metadata_server_host=0.0.0.0",
+                f"--http_metadata_server_port={MOONCAKE_HTTP_PORT}",
+                f"--metrics_port={MOONCAKE_METRICS_PORT}",
+            ],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+            preexec_fn=os.setsid,
+        )
+
+        assert _wait_for_port(MOONCAKE_HOST, MOONCAKE_RPC_PORT), "mooncake_master failed to start"
+
+        # Create temp config and initialize Omni
+        temp_config_file = _load_mooncake_config(
+            host=MOONCAKE_HOST,
+            rpc_port=MOONCAKE_RPC_PORT,
+            http_port=MOONCAKE_HTTP_PORT,
+        )
+
+        omni = Omni(model="ByteDance-Seed/BAGEL-7B-MoT", stage_configs_path=temp_config_file)
+
+        generated_image = _generate_bagel_image(omni)
+        _validate_pixels(generated_image)
+
+    finally:
+        if omni:
+            omni.close()
+        if temp_config_file:
+            try:
+                os.unlink(temp_config_file)
+            except OSError:
+                pass
+        if mooncake_master_proc:
+            try:
+                os.killpg(os.getpgid(mooncake_master_proc.pid), signal.SIGKILL)
+            except OSError:
+                pass
diff --git a/vllm_omni/model_executor/stage_configs/bagel.yaml b/vllm_omni/model_executor/stage_configs/bagel.yaml
index ee2b17729..c60f3b700 100644
--- a/vllm_omni/model_executor/stage_configs/bagel.yaml
+++ b/vllm_omni/model_executor/stage_configs/bagel.yaml
@@ -11,7 +11,7 @@ stage_args:
       model_arch: BagelForConditionalGeneration
       worker_type: ar
       scheduler_cls: vllm_omni.core.sched.omni_ar_scheduler.OmniARScheduler
-      gpu_memory_utilization: 0.4
+      gpu_memory_utilization: 0.35
       enforce_eager: true
       trust_remote_code: true
       engine_output_type: text
@@ -42,7 +42,7 @@ stage_args:
       max_batch_size: 1
     engine_args:
       model_stage: dit
-      gpu_memory_utilization: 0.4
+      gpu_memory_utilization: 0.55
       enforce_eager: true
       trust_remote_code: true
       engine_output_type: image
diff --git a/vllm_omni/model_executor/stage_configs/bagel_multiconnector.yaml b/vllm_omni/model_executor/stage_configs/bagel_multiconnector.yaml
index eddc844d5..c19302c76 100644
--- a/vllm_omni/model_executor/stage_configs/bagel_multiconnector.yaml
+++ b/vllm_omni/model_executor/stage_configs/bagel_multiconnector.yaml
@@ -11,7 +11,7 @@ stage_args:
       model_arch: BagelForConditionalGeneration
       worker_type: ar
       scheduler_cls: vllm_omni.core.sched.omni_ar_scheduler.OmniARScheduler
-      gpu_memory_utilization: 0.4
+      gpu_memory_utilization: 0.35
       enforce_eager: true
       trust_remote_code: true
       engine_output_type: text
@@ -41,11 +41,11 @@ stage_args:
   - stage_id: 1
     stage_type: diffusion
     runtime:
-      devices: "1"
+      devices: "0"
       max_batch_size: 1
     engine_args:
       model_stage: dit
-      gpu_memory_utilization: 0.4
+      gpu_memory_utilization: 0.55
       enforce_eager: true
       trust_remote_code: true
       engine_output_type: image