Disable Grok Code Fast 1 Optimized

apps/web/src/lib/ai-gateway/AGENTS.md

@@ -6,4 +6,4 @@ Custom LLM models ([`custom-llm/`](./custom-llm)) and direct BYOK models ([`prov
 
 ## Forbidden free models
 
-When a free Kilo-exclusive model is removed, add its public ID to `forbiddenFreeModelIds` in [`forbidden-free-models.ts`](./forbidden-free-models.ts) so stale clients cannot keep invoking it directly.
+When a free Kilo-exclusive model is removed from the code base (not just disabled), add its public ID to `forbiddenFreeModelIds` in [`forbidden-free-models.ts`](./forbidden-free-models.ts) so stale clients get an appropriate error message.

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

@@ -36,9 +36,6 @@ describe('isFreeModel', () => {
         m => m.status === 'public' && !m.pricing
       );
 
-      // Should have at least some enabled free models
-      expect(enabledFreeModels.length).toBeGreaterThan(0);
-
       // All enabled free models should be detected as free
       for (const model of enabledFreeModels) {
         expect(await isFreeModel(model.public_id)).toBe(true);

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

@@ -8,7 +8,7 @@ export const grok_code_fast_1_optimized_free_model: KiloExclusiveModel = {
     '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',
+  status: 'disabled',
   flags: ['reasoning', 'stealth'],
   gateway: 'martian',
   internal_id: 'x-ai/grok-code-fast-1:optimized',