"kimi-for-coding": {                                                                                                                                 
     "cost": {                                                                                                                                          
       "input": 0,                                                                                                                                      
       "output": 0,                                                                                                                                     
       "cacheRead": 0,                                                                                                                                  
       "cacheWrite": 0   ← cache not using.
     }                                                                                                                                                  
   }