diff --git a/pkgs/development/python-modules/genai-prices/default.nix b/pkgs/development/python-modules/genai-prices/default.nix
new file mode 100644
index 000000000000..777e35e4edf9
--- /dev/null
+++ b/pkgs/development/python-modules/genai-prices/default.nix
@@ -0,0 +1,49 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+
+  # build-system
+  uv-build,
+
+  # dependencies
+  httpx,
+  pydantic,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "genai-prices";
+  version = "0.0.55";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "pydantic";
+    repo = "genai-prices";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-FxHBVroKC9tgYJ+a429cnv7UVWMBoeTX+BEah7eD9Us=";
+  };
+
+  sourceRoot = "${finalAttrs.src.name}/packages/python";
+
+  build-system = [
+    uv-build
+  ];
+
+  dependencies = [
+    httpx
+    pydantic
+  ];
+
+  pythonImportsCheck = [
+    "genai_prices"
+  ];
+
+  doCheck = false; # no tests
+
+  meta = {
+    description = "Calculate prices for calling LLM inference APIs";
+    homepage = "https://github.com/pydantic/genai-prices";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ hexa ];
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 426268b1a572..50226bd2c521 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6088,6 +6088,8 @@ self: super: with self; {
     }
   );
 
+  genai-prices = callPackage ../development/python-modules/genai-prices { };
+
   genanki = callPackage ../development/python-modules/genanki { };
 
   general-sam = callPackage ../development/python-modules/general-sam { };