diff --git a/README.en.md b/README.en.md
index ec2a870..1007589 100644
--- a/README.en.md
+++ b/README.en.md
@@ -34,7 +34,7 @@ One-shot LLM eval cases by NAGI STUDIO: same prompt, different model x harness x
| Claude Sonnet 4.6 | Anthropic | Cursor · High | 01 |
| GPT-5.5 Pro | OpenAI | ChatGPT Web · Extended Pro | 02 |
| GPT-5.5 | OpenAI | Codex CLI · xhigh | 02 |
-| GPT-5.4 | OpenAI | Cursor · xhigh | 02 |
+| GPT-5.4 | OpenAI | Cursor · xhigh
Codex CLI · xhigh | 04 |
| GPT-5.3 Codex | OpenAI | Cursor · xhigh | 02 |
| GPT-5.2 | OpenAI | Cursor · xhigh | 02 |
| Gemini 3.1 Pro | Google | AntiGravity · High
Cursor · Default
Google AI Studio · High | 04 |
diff --git a/README.md b/README.md
index e75dc53..87ba8eb 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ NAGI STUDIO 的 LLM 测评案例集:同一段提示词,不同「模型 × Ha
| Claude Sonnet 4.6 | Anthropic | Cursor · High | 01 |
| GPT-5.5 Pro | OpenAI | ChatGPT Web · Extended Pro | 02 |
| GPT-5.5 | OpenAI | Codex CLI · xhigh | 02 |
-| GPT-5.4 | OpenAI | Cursor · xhigh | 02 |
+| GPT-5.4 | OpenAI | Cursor · xhigh
Codex CLI · xhigh | 04 |
| GPT-5.3 Codex | OpenAI | Cursor · xhigh | 02 |
| GPT-5.2 | OpenAI | Cursor · xhigh | 02 |
| Gemini 3.1 Pro | Google | AntiGravity · High
Cursor · Default
Google AI Studio · High | 04 |
diff --git a/models/gpt-5-4-xhigh.json b/models/gpt-5-4-xhigh.json
new file mode 100644
index 0000000..d336b5c
--- /dev/null
+++ b/models/gpt-5-4-xhigh.json
@@ -0,0 +1,27 @@
+{
+ "label": "GPT-5.4",
+ "vendor": "OpenAI",
+ "harness": "Codex CLI",
+ "effort": "xhigh",
+ "artifactDir": "gpt-5-4/codex-xhigh",
+ "order": 31.5,
+ "runs": {
+ "pelican-cycling": [
+ {
+ "note": {
+ "zh": "在 Codex CLI 中以 GPT-5.4(xhigh 思考配额)一次生成;本页为未经修改的原始产出。",
+ "en": "Generated in one shot by GPT-5.4 (xhigh effort) inside Codex CLI; unmodified original output."
+ },
+ "contributor": "Nagi-ovo"
+ },
+ {
+ "file": "pelican-cycling-2.svg",
+ "note": {
+ "zh": "在 Codex CLI 中以 GPT-5.4(xhigh 思考配额)一次生成的第二个 SVG 版本;本页为未经修改的原始产出。",
+ "en": "Second SVG variant generated in one shot by GPT-5.4 (xhigh effort) inside Codex CLI; unmodified original output."
+ },
+ "contributor": "Nagi-ovo"
+ }
+ ]
+ }
+}
diff --git a/outputs/gpt-5-4/codex-xhigh/pelican-cycling-2.svg b/outputs/gpt-5-4/codex-xhigh/pelican-cycling-2.svg
new file mode 100644
index 0000000..5875adf
--- /dev/null
+++ b/outputs/gpt-5-4/codex-xhigh/pelican-cycling-2.svg
@@ -0,0 +1,243 @@
+
diff --git a/outputs/gpt-5-4/codex-xhigh/pelican-cycling.svg b/outputs/gpt-5-4/codex-xhigh/pelican-cycling.svg
new file mode 100644
index 0000000..05163cd
--- /dev/null
+++ b/outputs/gpt-5-4/codex-xhigh/pelican-cycling.svg
@@ -0,0 +1,217 @@
+