Remove Grok Code Fast 1 Optimized from recommended and indicate it's going away (#3139)

Author: chrarnoldus

apps/web/src/lib/ai-gateway/models.ts

@@ -40,9 +40,6 @@ export const PRIMARY_DEFAULT_MODEL = CLAUDE_SONNET_CURRENT_MODEL_ID;
 export const autoFreeModels = [
   'nvidia/nemotron-3-super-120b-a12b:free',
   'poolside/laguna-m.1:free',
-  grok_code_fast_1_optimized_free_model.status === 'public'
-    ? grok_code_fast_1_optimized_free_model.public_id
-    : null,
   stepfun_35_flash_free_model.status === 'public' ? stepfun_35_flash_free_model.public_id : null,
 ].filter(m => m !== null);
 

apps/web/src/lib/ai-gateway/providers/xai.ts

@@ -3,9 +3,9 @@ import type { GatewayRequest } from '@/lib/ai-gateway/providers/openrouter/types
 
 export const grok_code_fast_1_optimized_free_model: KiloExclusiveModel = {
   public_id: 'x-ai/grok-code-fast-1:optimized:free',
-  display_name: 'xAI: Grok Code Fast 1 Optimized (free)',
+  display_name: 'xAI: Grok Code Fast 1, retiring May 15 (free)',
   description:
-    'An optimized variant of Grok Code Fast 1, provided free of charge for a limited time. **Note:** All prompts and completions for this model are logged by the provider and may be used to improve their services.',
+    'An optimized variant of Grok Code Fast 1, provided free of charge for a limited time. Going away May 15, 2026. **Note:** All prompts and completions for this model are logged by the provider and may be used to improve their services.',
   context_length: 256_000,
   max_completion_tokens: 10_000,
   status: 'public',