fix: /model display name not use fallback

src/utils/model/model.ts

@@ -443,11 +443,17 @@ export function renderModelSetting(setting: ModelName | ModelAlias): string {
 }
 
 // @[MODEL LAUNCH]: Add display name cases for the new model (base + [1m] variant if applicable).
-/**
- * Returns a human-readable display name for known public models, or null
- * if the model is not recognized as a public model.
- */
 export function getPublicModelDisplayName(model: ModelName): string | null {
+  // Check OpenCode Zen models first (before getModelStrings() which maps them to aliases)
+  if (model === 'big-pickle') return 'Big Pickle'
+  if (model === 'gpt-5-nano') return 'GPT 5 Nano'
+  if (model === 'minimax-m2.5-free') return 'MiniMax M2.5 Free'
+  if (model === 'minimax-m2.5') return 'MiniMax M2.5'
+  if (model === 'hy3-preview-free') return 'HY3 Preview Free'
+  if (model === 'ling-2.6-flash-free') return 'Ling 2.6 Flash Free'
+  if (model === 'trinity-large-preview-free') return 'Trinity Large Preview Free'
+  if (model === 'nemotron-3-super-free') return 'Nemotron 3 Super Free'
+
   switch (model) {
     case getModelStrings().opus46:
       return 'Opus 4.6'
@@ -479,22 +485,6 @@ export function getPublicModelDisplayName(model: ModelName): string | null {
       return 'Haiku 4.5'
     case getModelStrings().haiku35:
       return 'Haiku 3.5'
-    case 'big-pickle':
-      return 'Big Pickle'
-    case 'gpt-5-nano':
-      return 'GPT 5 Nano'
-    case 'minimax-m2.5-free':
-      return 'MiniMax M2.5 Free'
-    case 'minimax-m2.5':
-      return 'MiniMax M2.5'
-    case 'hy3-preview-free':
-      return 'HY3 Preview Free'
-    case 'ling-2.6-flash-free':
-      return 'Ling 2.6 Flash Free'
-    case 'trinity-large-preview-free':
-      return 'Trinity Large Preview Free'
-    case 'nemotron-3-super-free':
-      return 'Nemotron 3 Super Free'
     default:
       return null
   }