diff --git a/scripts/e2e/parallels-linux-smoke.sh b/scripts/e2e/parallels-linux-smoke.sh
index 0ef8110b772..d56a3a96d27 100644
--- a/scripts/e2e/parallels-linux-smoke.sh
+++ b/scripts/e2e/parallels-linux-smoke.sh
@@ -106,7 +106,7 @@ Options:
   --provider <openai|anthropic|minimax>
                              Provider auth/model lane. Default: openai
   --model <provider/model>    Override the model used for the agent-turn smoke.
-                             Default: openai/gpt-5.4 for the OpenAI lane
+                             Default: openai/gpt-5.5 for the OpenAI lane
   --api-key-env <var>        Host env var name for provider API key.
                              Default: OPENAI_API_KEY for openai, ANTHROPIC_API_KEY for anthropic
   --openai-api-key-env <var> Alias for --api-key-env (backward compatible)
@@ -209,7 +209,7 @@ case "$PROVIDER" in
   openai)
     AUTH_CHOICE="openai-api-key"
     AUTH_KEY_FLAG="openai-api-key"
-    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.4}"
+    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.5}"
     [[ -n "$API_KEY_ENV" ]] || API_KEY_ENV="OPENAI_API_KEY"
     ;;
   anthropic)
diff --git a/scripts/e2e/parallels-macos-smoke.sh b/scripts/e2e/parallels-macos-smoke.sh
index b515d69e3aa..d40201e7809 100644
--- a/scripts/e2e/parallels-macos-smoke.sh
+++ b/scripts/e2e/parallels-macos-smoke.sh
@@ -144,7 +144,7 @@ Options:
   --provider <openai|anthropic|minimax>
                              Provider auth/model lane. Default: openai
   --model <provider/model>    Override the model used for the agent-turn smoke.
-                             Default: openai/gpt-5.4 for the OpenAI lane
+                             Default: openai/gpt-5.5 for the OpenAI lane
   --api-key-env <var>        Host env var name for provider API key.
                              Default: OPENAI_API_KEY for openai, ANTHROPIC_API_KEY for anthropic
   --openai-api-key-env <var> Alias for --api-key-env (backward compatible)
@@ -266,7 +266,7 @@ case "$PROVIDER" in
   openai)
     AUTH_CHOICE="openai-api-key"
     AUTH_KEY_FLAG="openai-api-key"
-    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.4}"
+    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.5}"
     [[ -n "$API_KEY_ENV" ]] || API_KEY_ENV="OPENAI_API_KEY"
     ;;
   anthropic)
diff --git a/scripts/e2e/parallels-npm-update-smoke.sh b/scripts/e2e/parallels-npm-update-smoke.sh
index b5c89681ad7..aa5b0be5b1b 100755
--- a/scripts/e2e/parallels-npm-update-smoke.sh
+++ b/scripts/e2e/parallels-npm-update-smoke.sh
@@ -122,7 +122,7 @@ Options:
   --provider <openai|anthropic|minimax>
                              Provider auth/model lane. Default: openai
   --model <provider/model>    Override the model used for agent-turn smoke checks.
-                             Default: openai/gpt-5.4 for the OpenAI lane
+                             Default: openai/gpt-5.5 for the OpenAI lane
   --api-key-env <var>        Host env var name for provider API key.
                              Default: OPENAI_API_KEY for openai, ANTHROPIC_API_KEY for anthropic
   --openai-api-key-env <var> Alias for --api-key-env (backward compatible)
@@ -214,7 +214,7 @@ case "$PROVIDER" in
   openai)
     AUTH_CHOICE="openai-api-key"
     AUTH_KEY_FLAG="openai-api-key"
-    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.4}"
+    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.5}"
     [[ -n "$API_KEY_ENV" ]] || API_KEY_ENV="OPENAI_API_KEY"
     ;;
   anthropic)
diff --git a/scripts/e2e/parallels-windows-smoke.sh b/scripts/e2e/parallels-windows-smoke.sh
index 30685c18cd5..dbea1ee15de 100644
--- a/scripts/e2e/parallels-windows-smoke.sh
+++ b/scripts/e2e/parallels-windows-smoke.sh
@@ -140,7 +140,7 @@ Options:
   --provider <openai|anthropic|minimax>
                              Provider auth/model lane. Default: openai
   --model <provider/model>    Override the model used for the agent-turn smoke.
-                             Default: openai/gpt-5.4 for the OpenAI lane
+                             Default: openai/gpt-5.5 for the OpenAI lane
   --api-key-env <var>        Host env var name for provider API key.
                              Default: OPENAI_API_KEY for openai, ANTHROPIC_API_KEY for anthropic
   --openai-api-key-env <var> Alias for --api-key-env (backward compatible)
@@ -257,7 +257,7 @@ case "$PROVIDER" in
   openai)
     AUTH_CHOICE="openai-api-key"
     AUTH_KEY_FLAG="openai-api-key"
-    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.4}"
+    [[ "$MODEL_ID_EXPLICIT" -eq 1 ]] || MODEL_ID="${OPENCLAW_PARALLELS_OPENAI_MODEL:-openai/gpt-5.5}"
     [[ -n "$API_KEY_ENV" ]] || API_KEY_ENV="OPENAI_API_KEY"
     ;;
   anthropic)