diff --git a/pkgs/development/python-modules/fschat/default.nix b/pkgs/development/python-modules/fschat/default.nix
new file mode 100644
index 000000000000..26f69132ed0c
--- /dev/null
+++ b/pkgs/development/python-modules/fschat/default.nix
@@ -0,0 +1,102 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, setuptools
+, aiohttp
+, fastapi
+, httpx
+, markdown2
+, nh3
+, numpy
+, prompt-toolkit
+, pydantic
+, requests
+, rich
+, shortuuid
+, tiktoken
+, uvicorn
+, anthropic
+, openai
+, ray
+, wandb
+, einops
+, gradio
+, accelerate
+, peft
+, sentencepiece
+, torch
+, transformers
+, protobuf
+}:
+let
+  version = "0.2.28";
+in
+buildPythonPackage {
+  pname = "fschat";
+  inherit version;
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "lm-sys";
+    repo = "FastChat";
+    rev = "v${version}";
+    hash = "sha256-nTP4zY6mJykzKb6LBWosg77mwE33vq9eiYSpAlZU5NI=";
+  };
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
+  propagatedBuildInputs = [
+    aiohttp
+    fastapi
+    httpx
+    markdown2
+    nh3
+    numpy
+    prompt-toolkit
+    pydantic
+    requests
+    rich
+    shortuuid
+    tiktoken
+    uvicorn
+  # ] ++ markdown2.optional-dependencies.all;
+  ];
+
+  passthru.optional-dependencies = {
+    llm_judge = [
+      anthropic
+      openai
+      ray
+    ];
+    train = [
+      # flash-attn
+      wandb
+      einops
+    ];
+    webui = [
+      gradio
+    ];
+    model_worker = [
+      accelerate
+      peft
+      sentencepiece
+      torch
+      transformers
+      protobuf
+    ];
+  };
+
+  pythonImportsCheck = [ "fastchat" ];
+
+  # tests require networking
+  doCheck = false;
+
+  meta = with lib; {
+    description = "An open platform for training, serving, and evaluating large language models. Release repo for Vicuna and Chatbot Arena";
+    homepage = "https://github.com/lm-sys/FastChat";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ happysalada ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9d630a26711d..3f187bb87986 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4122,6 +4122,8 @@ self: super: with self; {
 
   fs-s3fs = callPackage ../development/python-modules/fs-s3fs { };
 
+  fschat = callPackage ../development/python-modules/fschat { };
+
   fsspec = callPackage ../development/python-modules/fsspec { };
 
   fst-pso = callPackage ../development/python-modules/fst-pso { };