diff --git a/server.js b/server.js
index 25c4b61..9f69c83 100644
--- a/server.js
+++ b/server.js
@@ -219,22 +219,33 @@ function runCodexEdit(jobDir, inputName, prompt) {
   const lastMessagePath = path.join(jobDir, "last_message.txt");
   const outputPath = path.join(jobDir, "output.jpg");
 
+  const args = [
+    "exec",
+    "-C", jobDir,
+    "--skip-git-repo-check",
+    "--ephemeral",
+    "--dangerously-bypass-approvals-and-sandbox"
+  ];
+
+  // Переопределение модели и уровня рассуждений (для тестов скорости):
+  // CODEX_MODEL=gpt-5.2-codex-mini CODEX_REASONING_EFFORT=low node server.js
+  if (process.env.CODEX_MODEL) {
+    args.push("-m", process.env.CODEX_MODEL);
+  }
+
+  if (process.env.CODEX_REASONING_EFFORT) {
+    args.push("--reasoning-effort", process.env.CODEX_REASONING_EFFORT);
+  }
+
+  args.push("-i", inputName, "-o", "last_message.txt", "-");
+
   return new Promise((resolve, reject) => {
     let child;
 
     try {
       child = spawn(
         CODEX_EXE,
-        [
-          "exec",
-          "-C", jobDir,
-          "--skip-git-repo-check",
-          "--ephemeral",
-          "--dangerously-bypass-approvals-and-sandbox",
-          "-i", inputName,
-          "-o", "last_message.txt",
-          "-"
-        ],
+        args,
         {
           cwd: jobDir,
           env: process.env,