diff --git a/README.md b/README.md
index 71b3eaa..51883c2 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ SnapForm 是一个 Blender 扩展，可以把一张照片、一段视频或一
 2. 打开 Blender，进入 `Preferences > Extensions`
 3. 点击 `Install from Disk`，选择下载的压缩包
 4. 在扩展偏好设置中确认 Storage Root 与 Device（保持默认即可）；Device 默认取本机
-   最快的 DirectML/CoreML provider，否则 CPU
+   最快的 DirectML provider；Apple M4 或更新芯片可选 MPS/CoreML，其他 Mac 只提供 CPU
 5. 打开 3D 视图右侧的 `SnapForm` 面板：使用官方源点击 `Install Environment`，使用国内镜像点击 `Install Environment (Mirror)`
 
 扩展不内置 uv 或 AI 运行库。首次使用会先下载并校验固定版本的 uv，随后自动安装轻量的 ONNX Runtime 环境，再下载 `MoGe-2 ViT-S Normal` 和
@@ -68,7 +68,7 @@ Bump 合并；网格本身不写入 custom normal，因此重拓扑降低顶点
 当前此功能仅支持单张图片。
 
 MoGe-2 ViT-S、ViT-B、ViT-L、DA3 Small、DA3 Base 与 BEN2 全部使用 ONNX。模型执行、相机与深度恢复、
-点云重投影和网格生成均不依赖 PyTorch。Windows 使用 DirectML 加速，macOS 使用 CoreML 的 `MLProgram` 模型格式；provider 不可用时会回退到 ONNX Runtime CPU，
+点云重投影和网格生成均不依赖 PyTorch。Windows 使用 DirectML 加速；Apple M4 或更新芯片可使用 CoreML 的 `MLProgram` 模型格式，较早或无法识别的 Mac 只提供 CPU；provider 不可用时会回退到 ONNX Runtime CPU，
 并在任务状态中显示实际 provider。
 
 转换对话框提供模型与 `Create Matching Camera`、`Remove Background`、`Shadeless`；DA3 显示
diff --git a/docs/server.md b/docs/server.md
index a5b9d33..87c7f78 100644
--- a/docs/server.md
+++ b/docs/server.md
@@ -66,7 +66,7 @@ ONNX 实现位于 `models/`；纯投影、网格与唯一 Surface Builder 位于
 
 运行环境不安装 PyTorch、TorchVision、xFormers，也不安装 DA3、MoGe、BEN2 或 utils3d 的 Python 源码包。模型推理和 SnapForm 所需的相机、点云、网格后处理均由 ONNX Runtime、NumPy 与内部实现完成。
 
-Windows 当前发行环境提供 DirectML 与 CPU；`Auto` 优先使用 `DmlExecutionProvider`。显式指定不可用设备时会安全回退到 CPU。其他平台安装标准 ONNX Runtime，并按可用 provider 选择 CoreML、OpenVINO 或 CPU。macOS 的 CoreML Session 使用 `MLProgram` 模型格式与全部可用计算单元，允许动态输入 Shape；未被 CoreML 接管的节点继续由 CPU 执行。
+Windows 当前发行环境提供 DirectML 与 CPU；`Auto` 优先使用 `DmlExecutionProvider`。显式指定不可用设备时会安全回退到 CPU。其他平台安装标准 ONNX Runtime，并按可用 provider 选择 CoreML、OpenVINO 或 CPU。Blender 侧通过 `sysctl` 识别 Apple Silicon 代际，只有 M4 或更新芯片才提供 MPS 选项；其他 Mac 只提供 CPU。M4 或更新芯片的 CoreML Session 使用 `MLProgram` 模型格式、全部可用计算单元并允许动态输入 Shape。
 
 `environment.json` 保存规范化后的声明，`manifest.json` 保存该声明与基础 Server packages 的 Hash。Python、packages、平台 packages、基础 Server packages 或 Environment Schema 改变后需要重新执行 `Install Environment`，不再维护手工 Manifest Revision。BlendJob 直接随 Extension 更新，不参与 Environment Hash。
 
diff --git a/pyproject.toml b/pyproject.toml
index b61d7d2..2ddcca2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "snapform"
-version = "0.12.14"
+version = "0.12.15"
 description = "Fast image-guided structure building tools for Blender"
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/src/snapform/blender_manifest.toml b/src/snapform/blender_manifest.toml
index 0d4db20..c2ec8bc 100644
--- a/src/snapform/blender_manifest.toml
+++ b/src/snapform/blender_manifest.toml
@@ -1,7 +1,7 @@
 schema_version = "1.0.0"
 
 id = "snapform"
-version = "0.12.14"
+version = "0.12.15"
 name = "SnapForm"
 tagline = "Build spatial structures from images, fast"
 maintainer = "OmooLab"
diff --git a/src/snapform/properties.py b/src/snapform/properties.py
index c9980ae..faae138 100644
--- a/src/snapform/properties.py
+++ b/src/snapform/properties.py
@@ -1,4 +1,7 @@
+import functools
 import platform
+import re
+import subprocess
 import sys
 
 import bpy
@@ -21,18 +24,50 @@ DEVICE_LABELS = {
 }
 
 
-def supported_devices():
-    devices = runtime.environment_manifest().get("devices")
-    if isinstance(devices, list) and devices:
-        return [str(device).lower() for device in devices]
-    if sys.platform == "win32":
-        return ["directml", "cpu"]
-    if sys.platform == "darwin" and platform.machine().lower() in {
+APPLE_SILICON_PATTERN = re.compile(r"\bApple M(\d+)\b", re.IGNORECASE)
+
+
+def parse_apple_silicon_generation(brand):
+    match = APPLE_SILICON_PATTERN.search(str(brand))
+    return int(match.group(1)) if match else None
+
+
+@functools.lru_cache(maxsize=1)
+def apple_silicon_generation():
+    if sys.platform != "darwin" or platform.machine().lower() not in {
         "arm64",
         "aarch64",
     }:
-        return ["mps", "cpu"]
-    return ["cpu"]
+        return None
+    try:
+        result = subprocess.run(
+            ("sysctl", "-n", "machdep.cpu.brand_string"),
+            check=True,
+            capture_output=True,
+            text=True,
+            timeout=2,
+        )
+    except (OSError, subprocess.SubprocessError):
+        return None
+    return parse_apple_silicon_generation(result.stdout)
+
+
+def supports_mps(generation=None):
+    if generation is None:
+        generation = apple_silicon_generation()
+    return generation is not None and generation >= 4
+
+
+def supported_devices():
+    devices = runtime.environment_manifest().get("devices")
+    if isinstance(devices, list) and devices:
+        names = [str(device).lower() for device in devices]
+        if not supports_mps():
+            names = [name for name in names if name != "mps"]
+        return names or ["cpu"]
+    if sys.platform == "win32":
+        return ["directml", "cpu"]
+    return ["mps", "cpu"] if supports_mps() else ["cpu"]
 
 
 def device_enum_items(_owner, _context):
diff --git a/tests/test_addon.py b/tests/test_addon.py
index 7a53d39..fead88c 100644
--- a/tests/test_addon.py
+++ b/tests/test_addon.py
@@ -124,6 +124,53 @@ class AddonTest(unittest.TestCase):
             self.assertFalse((SOURCE_ROOT / "snapform" / name).exists(), name)
         self.assertFalse(hasattr(self.addon, "client"))
 
+    def test_mps_requires_m4_or_newer(self):
+        properties = self.addon.properties
+        parse = properties.parse_apple_silicon_generation
+        self.assertEqual(parse("Apple M2"), 2)
+        self.assertEqual(parse("Apple M4 Pro"), 4)
+        self.assertEqual(parse("Apple M10 Max"), 10)
+        self.assertIsNone(parse("Intel(R) Core(TM) i9"))
+        self.assertFalse(properties.supports_mps(3))
+        self.assertTrue(properties.supports_mps(4))
+
+    def test_unsupported_mac_hides_manifest_mps_device(self):
+        properties = self.addon.properties
+        manifest = {"devices": ["mps", "cpu"]}
+        with (
+            patch.object(
+                self.addon.runtime,
+                "environment_manifest",
+                return_value=manifest,
+            ),
+            patch.object(properties, "supports_mps", return_value=False),
+        ):
+            self.assertEqual(properties.supported_devices(), ["cpu"])
+        with (
+            patch.object(
+                self.addon.runtime,
+                "environment_manifest",
+                return_value=manifest,
+            ),
+            patch.object(properties, "supports_mps", return_value=True),
+        ):
+            self.assertEqual(properties.supported_devices(), ["mps", "cpu"])
+
+    def test_windows_keeps_default_directml_device(self):
+        properties = self.addon.properties
+        with (
+            patch.object(
+                self.addon.runtime,
+                "environment_manifest",
+                return_value={},
+            ),
+            patch.object(properties.sys, "platform", "win32"),
+        ):
+            self.assertEqual(
+                properties.supported_devices(),
+                ["directml", "cpu"],
+            )
+
     def test_import_does_not_add_addon_directories_to_sys_path(self):
         self.assertEqual(self.paths_after_import, self.paths_before_import)
         self.assertFalse(
diff --git a/uv.lock b/uv.lock
index 82d1cfc..b909a91 100644
--- a/uv.lock
+++ b/uv.lock
@@ -858,7 +858,7 @@ wheels = [
 
 [[package]]
 name = "snapform"
-version = "0.12.14"
+version = "0.12.15"
 source = { virtual = "." }
 dependencies = [
     { name = "blendjob" },