diff --git a/pkgs/development/python-modules/lm-eval/default.nix b/pkgs/development/python-modules/lm-eval/default.nix
index 5346109286e1..3bbaae0ce9e6 100644
--- a/pkgs/development/python-modules/lm-eval/default.nix
+++ b/pkgs/development/python-modules/lm-eval/default.nix
@@ -34,6 +34,8 @@
   tenacity,
   tiktoken,
   tqdm,
+  # dscrim_eval
+  statsmodels,
   # hf_transfer
   hf-transfer,
   # ifeval
@@ -62,16 +64,16 @@
   writableTmpDirAsHomeHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "lm-eval";
-  version = "0.4.9.1";
+  version = "0.4.9.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "EleutherAI";
     repo = "lm-evaluation-harness";
-    tag = "v${version}";
-    hash = "sha256-N5NRRabjWxPchwOIkjqYTCKInCmVSY6T5cAmdxNbCkU=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-Foz49XfIIzGJkgzjBu9P1J9cwYjl3fjAAJG9GKRwfq8=";
   };
 
   build-system = [
@@ -108,6 +110,7 @@ buildPythonPackage rec {
       tiktoken
       tqdm
     ];
+    discrim_eval = [ statsmodels ];
     hf_transfer = [ hf-transfer ];
     ifeval = [
       immutabledict
@@ -144,7 +147,7 @@ buildPythonPackage rec {
     pytestCheckHook
     writableTmpDirAsHomeHook
   ]
-  ++ optional-dependencies.api;
+  ++ finalAttrs.passthru.optional-dependencies.api;
 
   disabledTests = [
     "test_deepsparse" # deepsparse is not available
@@ -156,6 +159,7 @@ buildPythonPackage rec {
 
   disabledTestPaths = [
     # attempts to download models
+    "tests/models/test_bos_handling.py"
     "tests/models/test_huggingface.py"
     "tests/test_evaluator.py"
     "tests/test_include_path.py"
@@ -172,10 +176,10 @@ buildPythonPackage rec {
   ];
 
   meta = {
-    changelog = "https://github.com/EleutherAI/lm-evaluation-harness/releases/tag/${src.tag}";
+    changelog = "https://github.com/EleutherAI/lm-evaluation-harness/releases/tag/${finalAttrs.src.tag}";
     description = "Framework for few-shot evaluation of language models";
     homepage = "https://github.com/EleutherAI/lm-evaluation-harness";
     license = [ lib.licenses.mit ];
     maintainers = [ lib.maintainers.booxter ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/mlx-lm/default.nix b/pkgs/development/python-modules/mlx-lm/default.nix
index 91ffec0c3650..25809fb16869 100644
--- a/pkgs/development/python-modules/mlx-lm/default.nix
+++ b/pkgs/development/python-modules/mlx-lm/default.nix
@@ -15,22 +15,23 @@
   transformers,
 
   # tests
+  aiohttp,
   lm-eval,
-  sentencepiece,
   pytestCheckHook,
+  sentencepiece,
   writableTmpDirAsHomeHook,
 }:
 
 buildPythonPackage (finalAttrs: {
   pname = "mlx-lm";
-  version = "0.30.2";
+  version = "0.30.4";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "ml-explore";
     repo = "mlx-lm";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-6WlKAchze5B724XYwzpVHy+17HlMcGSYjJw0aOdm5yw=";
+    hash = "sha256-ncDg7C84d1tAgk1300N7wY6kD1BocNNIqDUl0xBLhqY=";
   };
 
   build-system = [
@@ -50,6 +51,7 @@ buildPythonPackage (finalAttrs: {
   ];
 
   nativeCheckInputs = [
+    aiohttp
     lm-eval
     pytestCheckHook
     sentencepiece
diff --git a/pkgs/development/python-modules/mlx/default.nix b/pkgs/development/python-modules/mlx/default.nix
index 054bd57dcfbd..f146911a9974 100644
--- a/pkgs/development/python-modules/mlx/default.nix
+++ b/pkgs/development/python-modules/mlx/default.nix
@@ -4,17 +4,16 @@
   buildPythonPackage,
   fetchFromGitHub,
   replaceVars,
+  nanobind,
 
   # build-system
-  setuptools,
-
-  # nativeBuildInputs
   cmake,
+  setuptools,
+  typing-extensions,
 
   # buildInputs
   apple-sdk,
   fmt,
-  nanobind,
   nlohmann_json,
   pybind11,
   # linux-only
@@ -42,26 +41,27 @@ let
 in
 buildPythonPackage (finalAttrs: {
   pname = "mlx";
-  version = "0.30.1";
+  version = "0.30.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "ml-explore";
     repo = "mlx";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-Vt0RH+70VBwUjXSfPTsNdRS3g0ookJHhzf2kvgEtgH8=";
+    hash = "sha256-Y4RTkGcDCZ9HLyflN0qYhPt/oVOsBhF1mHnKM4n1/ys=";
   };
 
-  patches = lib.optionals stdenv.hostPlatform.isDarwin [
+  patches = [
+    # Use system nanobind instead of fetching its sources
+    ./dont-fetch-nanobind.patch
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isDarwin [
     (replaceVars ./darwin-build-fixes.patch {
       sdkVersion = apple-sdk.version;
     })
   ];
 
   postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace-fail "nanobind==2.10.2" "nanobind"
-
     substituteInPlace mlx/backend/cpu/jit_compiler.cpp \
       --replace-fail "g++" "${lib.getExe' stdenv.cc "c++"}"
   '';
@@ -79,7 +79,7 @@ buildPythonPackage (finalAttrs: {
   passthru.skipBulkUpdate = true;
 
   env = {
-    DEV_RELEASE = 1;
+    PYPI_RELEASE = 1;
     CMAKE_ARGS = toString [
       # NOTE The `metal` command-line utility used to build the Metal kernels is not open-source.
       # To build mlx with Metal support in Nix, you'd need to use one of the sandbox escape
@@ -89,21 +89,21 @@ buildPythonPackage (finalAttrs: {
       (lib.cmakeBool "USE_SYSTEM_FMT" true)
       (lib.cmakeOptionType "filepath" "FETCHCONTENT_SOURCE_DIR_GGUFLIB" "${gguf-tools}")
       (lib.cmakeOptionType "filepath" "FETCHCONTENT_SOURCE_DIR_JSON" "${nlohmann_json.src}")
+
+      # Cmake cannot find nanobind-config.cmake by itself
+      (lib.cmakeFeature "nanobind_DIR" "${nanobind}/${python.sitePackages}/nanobind/cmake")
     ];
   };
 
   build-system = [
-    setuptools
-  ];
-
-  nativeBuildInputs = [
     cmake
+    setuptools
+    typing-extensions
   ];
 
   buildInputs = [
     fmt
     gguf-tools
-    nanobind
     nlohmann_json
     pybind11
   ]
diff --git a/pkgs/development/python-modules/mlx/dont-fetch-nanobind.patch b/pkgs/development/python-modules/mlx/dont-fetch-nanobind.patch
new file mode 100644
index 000000000000..f2858448a93b
--- /dev/null
+++ b/pkgs/development/python-modules/mlx/dont-fetch-nanobind.patch
@@ -0,0 +1,19 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0ed30932..e5842707 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -339,13 +339,7 @@ if(MLX_BUILD_PYTHON_BINDINGS)
+     Python 3.10
+     COMPONENTS Interpreter Development.Module
+     REQUIRED)
+-  FetchContent_Declare(
+-    nanobind
+-    GIT_REPOSITORY https://github.com/wjakob/nanobind.git
+-    GIT_TAG v2.10.2
+-    GIT_SHALLOW TRUE
+-    EXCLUDE_FROM_ALL)
+-  FetchContent_MakeAvailable(nanobind)
++  find_package(nanobind CONFIG REQUIRED)
+   add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/python/src)
+ endif()
+