diff --git a/packages/gateway/src/routes/completion.ts b/packages/gateway/src/routes/completion.ts
index 3e4fb2b..f52a966 100644
--- a/packages/gateway/src/routes/completion.ts
+++ b/packages/gateway/src/routes/completion.ts
@@ -449,7 +449,7 @@ async function executeCompletion(body: CompletionRequest, startMs: number, callI
     if (action === 'llm_judge') {
       try {
         const verdict = await llmJudge(body.input, {
-          model: 'qwen2.5:3b',
+          model: process.env['LLM_JUDGE_MODEL'] || 'qwen2.5:3b',
           callLLM: async (req) => {
             const resp = await callOllama(
               { model: req.model, prompt: req.prompt, system: req.system, stream: false, options: { temperature: 0, num_predict: 8, ...(req.options ?? {}) } },