diff --git a/engine/controllers/command_line_parser.cc b/engine/controllers/command_line_parser.cc
index 8c0378abf..824f9dcc9 100644
--- a/engine/controllers/command_line_parser.cc
+++ b/engine/controllers/command_line_parser.cc
@@ -224,7 +224,10 @@ void CommandLineParser::EngineInstall(CLI::App* parent,
                                       std::string& version) {
   auto install_engine_cmd = parent->add_subcommand(engine_name, "");
 
-  install_engine_cmd->callback([engine_name, version] {
+  install_engine_cmd->add_option("-v, --version", version,
+                                 "Engine version to download");
+
+  install_engine_cmd->callback([engine_name, &version] {
     try {
       commands::EngineInstallCmd().Exec(engine_name, version);
     } catch (const std::exception& e) {
diff --git a/engine/e2e-test/test_cli_engine_install.py b/engine/e2e-test/test_cli_engine_install.py
index be23167be..15cd8deb3 100644
--- a/engine/e2e-test/test_cli_engine_install.py
+++ b/engine/e2e-test/test_cli_engine_install.py
@@ -28,3 +28,11 @@ def test_engines_install_onnx_on_tensorrt_should_be_failed(self):
         )
         assert "No variant found" in output, "Should display error message"
         assert exit_code == 0, f"Install engine failed with error: {error}"
+        
+    def test_engines_install_pre_release_llamacpp(self):
+        exit_code, output, error = run(
+            "Install Engine", ["engines", "install", "cortex.llamacpp", "-v", "v0.1.29"], timeout=60
+        )
+        assert "Start downloading" in output, "Should display downloading message"
+        assert exit_code == 0, f"Install engine failed with error: {error}"
+
diff --git a/engine/main.cc b/engine/main.cc
index 79f1aaa98..06513d638 100644
--- a/engine/main.cc
+++ b/engine/main.cc
@@ -206,12 +206,13 @@ int main(int argc, char* argv[]) {
           verbose = true;
         }
       }
+
+      trantor::FileLogger asyncFileLogger;
       if (!verbose) {
         auto config = file_manager_utils::GetCortexConfig();
         std::filesystem::create_directories(
             std::filesystem::path(config.logFolderPath) /
             std::filesystem::path(cortex_utils::logs_folder));
-        trantor::FileLogger asyncFileLogger;
         asyncFileLogger.setFileName(config.logFolderPath + "/" +
                                     cortex_utils::logs_cli_base_name);
         asyncFileLogger.setMaxLines(
diff --git a/engine/services/engine_service.cc b/engine/services/engine_service.cc
index 5691d728c..68368fe4a 100644
--- a/engine/services/engine_service.cc
+++ b/engine/services/engine_service.cc
@@ -76,16 +76,42 @@ std::vector<EngineInfo> EngineService::GetEngineInfoList() const {
 void EngineService::InstallEngine(const std::string& engine,
                                   const std::string& version) {
   auto system_info = system_info_utils::GetSystemInfo();
+  auto get_params = [&engine, &version]() -> std::vector<std::string> {
+    if (version == "latest") {
+      return {"repos", "janhq", engine, "releases", version};
+    } else {
+      return {"repos", "janhq", engine, "releases"};
+    }
+  };
+
   auto url_obj = url_parser::Url{
       .protocol = "https",
       .host = "api.github.com",
-      .pathParams = {"repos", "janhq", engine, "releases", version},
+      .pathParams = get_params(),
   };
 
   httplib::Client cli(url_obj.GetProtocolAndHost());
   if (auto res = cli.Get(url_obj.GetPathAndQuery());
       res->status == httplib::StatusCode::OK_200) {
     auto body = json::parse(res->body);
+    auto get_data =
+        [&version](const nlohmann::json& json_data) -> nlohmann::json {
+      for (auto& jr : json_data) {
+        // Get the latest or match version
+        if (auto tag = jr["tag_name"].get<std::string>(); tag == version) {
+          return jr;
+        }
+      }
+      return nlohmann::json();
+    };
+
+    if (version != "latest") {
+      body = get_data(body);
+    }
+    if (body.empty()) {
+      throw std::runtime_error("No release found for " + version);      
+    }
+
     auto assets = body["assets"];
     auto os_arch{system_info.os + "-" + system_info.arch};