Update openclaw.json

openclaw.json

@@ -6,6 +6,7 @@
         "apiKey": "${NVIDIA_API_KEY}",
         "api": "openai-completions",
         "models": [
+          { "id": "openai/gpt-oss-120b", "name": "openai/gpt-oss-120b", "input": ["text"], "contextWindow": 131072, "maxTokens": 32768 },
           { "id": "qwen/qwen3.5-397b-a17b", "name": "qwen/qwen3.5-397b-a17b", "input": ["text", "image"], "contextWindow": 128000, "maxTokens": 8192 },
           { "id": "stepfun-ai/step-3.5-flash", "name": "stepfun-ai/step-3.5-flash", "input": ["text", "image"], "contextWindow": 256000, "maxTokens": 8192 },
           { "id": "moonshotai/kimi-k2.5", "name": "moonshotai/kimi-k2.5", "input": ["text", "image"], "contextWindow": 256000, "maxTokens": 8192 },
@@ -35,7 +36,8 @@
   "agents": {
     "defaults": {
       "model": {
-        "primary": "${MODEL}"
+        "primary": "openai/gpt-oss-120b",
+        "fallbacks": ["z-ai/glm5", "minimaxai/minimax-m2.5"]
       }
     }
   },