Move model options to helper

app/controllers/admin/prompt_sandboxes_controller.rb

@@ -1,17 +1,7 @@
 class Admin::PromptSandboxesController < AdminController
   include DayTimelinesScoped
 
-  MODELS = %w[
-    chatgpt-4o-latest
-    gpt-4.1
-    gpt-3.5-turbo
-    gpt-4.1-mini
-    gpt-4.1-nano
-    gpt-4o-mini
-  ]
-
   def show
-    @llm_models = MODELS.map { |model| [ model, model ] }
     @llm_model = params[:llm_model] || Event::Summarizer::LLM_MODEL
 
     if @prompt = cookies[:prompt].presence

app/helpers/ai_helper.rb

@@ -0,0 +1,16 @@
+require "zlib"
+
+module AiHelper
+  LLM_MODELS = %w[
+    chatgpt-4o-latest
+    gpt-4.1
+    gpt-3.5-turbo
+    gpt-4.1-mini
+    gpt-4.1-nano
+    gpt-4o-mini
+  ]
+
+  def llm_model_options
+    LLM_MODELS.map { |model| [ model, model ] }
+  end
+end

app/views/admin/prompt_sandboxes/show.html.erb

@@ -15,7 +15,7 @@
     <div class="field">
       <%= form.label :llm_model, "LLM Model:" %>
       <%= form.select :llm_model,
-            options_for_select(@llm_models, @llm_model),
+            options_for_select(llm_model_options, @llm_model),
             {} %>
     </div>