Add GPT-5.4 Codex mythos artifact

Co-authored-by: Codex <codex@openai.com>

README.en.md

@@ -37,7 +37,7 @@ 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<br>Codex CLI · xhigh | 04 |
+| GPT-5.4 | OpenAI | Cursor · xhigh<br>Codex CLI · xhigh | 05 |
 | GPT-5.3 Codex | OpenAI | Cursor · xhigh | 02 |
 | GPT-5.2 | OpenAI | Cursor · xhigh | 02 |
 | Gemini 3.1 Pro | Google | AntiGravity · High<br>Cursor · Default<br>Google AI Studio · High | 04 |

README.md

@@ -37,7 +37,7 @@ 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<br>Codex CLI · xhigh | 04 |
+| GPT-5.4 | OpenAI | Cursor · xhigh<br>Codex CLI · xhigh | 05 |
 | GPT-5.3 Codex | OpenAI | Cursor · xhigh | 02 |
 | GPT-5.2 | OpenAI | Cursor · xhigh | 02 |
 | Gemini 3.1 Pro | Google | AntiGravity · High<br>Cursor · Default<br>Google AI Studio · High | 04 |

models/gpt-5-4-xhigh.json

@@ -6,6 +6,13 @@
   "artifactDir": "gpt-5-4/codex-xhigh",
   "order": 31.5,
   "runs": {
+    "mythos-craft": {
+      "note": {
+        "zh": "在 Codex CLI 中以 GPT-5.4（xhigh 思考配额）生成并整理为单文件 HTML 产物。",
+        "en": "Generated by GPT-5.4 (xhigh effort) inside Codex CLI and packaged as a single-file HTML artifact."
+      },
+      "contributor": "Nagi-ovo"
+    },
     "pelican-cycling": [
       {
         "note": {