diff --git a/README b/README
index 95696aa..01fe3db 100644
--- a/README
+++ b/README
@@ -9,6 +9,7 @@ SHARED_PROMPT: "Provide production-ready and maintainable JavaScript code. Apply
 The following models are included in the benchmark run.
 
 <!-- MODELS_START -->
+x-ai/grok-4.20-beta
 openrouter/hunter-alpha
 openai/gpt-5.4
 google/gemini-3.1-flash-lite-preview