Minor update

Author: john-b-yang

configs/ablations/ladder/corewar.yaml

@@ -3,15 +3,14 @@ tournament:
 game:
   name: CoreWar
   sims_per_round: 2000
-players:
+player:
   agent: mini
   name: claude-sonnet-4-5-20250929
   branch_init: human/pspace
   config:
     agent: !include mini/default.yaml
     model:
-      model_name: '@anthropic/claude-sonnet-4-5-20250929'
-      model_class: portkey
+      model_name: anthropic/claude-sonnet-4-5-20250929
       model_kwargs:
         temperature: 0.2
         max_tokens: 4096

configs/ablations/ladder/robotrumble.yaml

@@ -12,8 +12,7 @@ player:
   config:
     agent: !include mini/default.yaml
     model:
-      model_name: '@anthropic/claude-sonnet-4-5-20250929'
-      model_class: portkey
+      model_name: anthropic/claude-sonnet-4-5-20250929
       model_kwargs:
         temperature: 0.2
         max_tokens: 4096