CI for Sandbox: IBM Granite 4.0 Micro

Author: ariya

.github/workflows/sandbox.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         model:
-          - google/gemma-3-4b-it                         # $0.0200/$0.0400 [ 128K]
+          - ibm-granite/granite-4.0-h-micro              # $0.0170/$0.1100 [ 128K]
     steps:
       - uses: actions/checkout@v4
 
@@ -34,7 +34,7 @@ jobs:
       fail-fast: false
       matrix:
         model:
-          - google/gemma-3-4b-it                         # $0.0200/$0.0400 [ 128K]
+          - ibm-granite/granite-4.0-h-micro              # $0.0170/$0.1100 [ 128K]
     steps:
       - uses: actions/checkout@v4
       - run: ./chat-llm.js tests/en/high-school-stem.txt
@@ -50,7 +50,7 @@ jobs:
       fail-fast: false
       matrix:
         model:
-          - google/gemma-3-4b-it                         # $0.0200/$0.0400 [ 128K]
+          - ibm-granite/granite-4.0-h-micro              # $0.0170/$0.1100 [ 128K]
     steps:
       - uses: actions/checkout@v4
       - run: ./chat-llm.js tests/en/general-knowledge.txt