{
  "name": "Discontinued and broken AI detectors",
  "url": "https://human-only.com/data/ai-detectors/",
  "publisher": {
    "name": "Human-Only",
    "url": "https://human-only.com"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "checked": {
    "from": "2026-10-22",
    "to": "2026-10-22"
  },
  "detectors": [
    {
      "id": "content-at-scale-ai-detector",
      "name": "AI Content Detector",
      "operator": "Content at Scale",
      "kind": "company-tool",
      "status": "redirected",
      "launched": null,
      "endedOn": null,
      "urls": [
        "https://contentatscale.ai/ai-content-detector/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20240826133959/https://contentatscale.ai/ai-content-detector/",
        "date": "2024-08-26"
      },
      "statement": null,
      "sources": [
        {
          "title": "Wayback Machine capture, 26 Jan 2023 (page title: Free AI Detector - AI Content Detection for GPT-3 + ChatGPT)",
          "url": "https://web.archive.org/web/20230126175208/https://contentatscale.ai/ai-content-detector/",
          "date": "2023-01-26"
        },
        {
          "title": "Wayback Machine capture, 26 Aug 2024 (last capture with HTTP 200)",
          "url": "https://web.archive.org/web/20240826133959/https://contentatscale.ai/ai-content-detector/",
          "date": "2024-08-26"
        },
        {
          "title": "Wayback Machine capture, 27 Aug 2024 (HTTP 301 to brandwell.ai/ai-content-detector/)",
          "url": "https://web.archive.org/web/20240827154539/https://contentatscale.ai/ai-content-detector/",
          "date": "2024-08-27"
        },
        {
          "title": "Weber-Wulff et al. (2023), Testing of detection tools for AI-generated text. International Journal for Educational Integrity 19, 26",
          "url": "https://doi.org/10.1007/s40979-023-00146-z",
          "date": "2023-12-25"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://contentatscale.ai/ai-content-detector/",
            "checkedAt": "2026-10-22T05:12:07.370Z",
            "httpStatus": 200,
            "outcome": "redirected",
            "error": null,
            "finalUrl": "https://moxby.com/marketplace/ai-content-detector",
            "redirectChain": [
              {
                "url": "https://contentatscale.ai/ai-content-detector/",
                "status": 301,
                "location": "https://brandwell.ai/ai-content-detector/"
              },
              {
                "url": "https://brandwell.ai/ai-content-detector/",
                "status": 301,
                "location": "https://moxby.com/marketplace/ai-content-detector"
              },
              {
                "url": "https://moxby.com/marketplace/ai-content-detector",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20240826133959",
                "date": "2024-08-26",
                "status": "200",
                "original": "https://contentatscale.ai/ai-content-detector/",
                "url": "https://web.archive.org/web/20240826133959/https://contentatscale.ai/ai-content-detector/",
                "title": "The AI Detector is a Real-time AI Checker and ChatGPT Detector |"
              },
              "firstBadAfterOk": {
                "timestamp": "20240827154539",
                "date": "2024-08-27",
                "status": "301",
                "original": "https://contentatscale.ai/ai-content-detector/",
                "url": "https://web.archive.org/web/20240827154539/https://contentatscale.ai/ai-content-detector/"
              }
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "crossplag-ai-content-detector",
      "name": "AI Content Detector",
      "operator": "Crossplag",
      "kind": "company-tool",
      "status": "offline",
      "launched": null,
      "endedOn": null,
      "urls": [
        "https://crossplag.com/ai-content-detector/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20230314234537/https://crossplag.com/ai-content-detector/",
        "date": "2023-03-14"
      },
      "statement": null,
      "sources": [
        {
          "title": "Wayback Machine capture, 14 Mar 2023 (page title: AI Content Detector - Crossplag)",
          "url": "https://web.archive.org/web/20230314234537/https://crossplag.com/ai-content-detector/",
          "date": "2023-03-14"
        },
        {
          "title": "Wayback Machine capture, 12 Jan 2026 (page title: AI Content Detector)",
          "url": "https://web.archive.org/web/20260112115928/https://crossplag.com/ai-content-detector/",
          "date": "2026-01-12"
        },
        {
          "title": "Wayback Machine capture, 3 Feb 2026 (HTTP 301)",
          "url": "https://web.archive.org/web/20260203081750/https://crossplag.com/ai-content-detector/",
          "date": "2026-02-03"
        },
        {
          "title": "Liang et al. (2023), GPT detectors are biased against non-native English writers. Patterns 4(7)",
          "url": "https://doi.org/10.1016/j.patter.2023.100779"
        },
        {
          "title": "Perkins et al. (2024), Simple techniques to bypass GenAI text detectors. International Journal of Educational Technology in Higher Education 21, 53",
          "url": "https://doi.org/10.1186/s41239-024-00487-w",
          "date": "2024-09-09"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://crossplag.com/ai-content-detector/",
            "checkedAt": "2026-10-22T05:17:52.728Z",
            "httpStatus": 404,
            "outcome": "client-error",
            "error": null,
            "finalUrl": "https://inspera.com/ai-content-detector/",
            "redirectChain": [
              {
                "url": "https://crossplag.com/ai-content-detector/",
                "status": 301,
                "location": "https://www.inspera.com/ai-content-detector/"
              },
              {
                "url": "https://www.inspera.com/ai-content-detector/",
                "status": 301,
                "location": "https://inspera.com/ai-content-detector/"
              },
              {
                "url": "https://inspera.com/ai-content-detector/",
                "status": 404,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20260112115928",
                "date": "2026-01-12",
                "status": "200",
                "original": "https://crossplag.com/ai-content-detector/",
                "url": "https://web.archive.org/web/20260112115928/https://crossplag.com/ai-content-detector/",
                "title": "AI Content Detector"
              },
              "firstBadAfterOk": {
                "timestamp": "20260203081750",
                "date": "2026-02-03",
                "status": "301",
                "original": "https://crossplag.com/ai-content-detector/",
                "url": "https://web.archive.org/web/20260203081750/https://crossplag.com/ai-content-detector/"
              }
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "writer-ai-content-detector",
      "name": "AI Content Detector",
      "operator": "Writer",
      "kind": "company-tool",
      "status": "withdrawn",
      "launched": null,
      "endedOn": {
        "on": "2025-12-22",
        "basis": "statement"
      },
      "urls": [
        "https://writer.com/ai-content-detector/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20251209115654/https://writer.com/ai-content-detector/",
        "date": "2025-12-09"
      },
      "statement": {
        "quote": "This tool will be sunset on December 22",
        "url": "https://web.archive.org/web/20251209115654/https://writer.com/ai-content-detector/",
        "date": "2025-12-09"
      },
      "sources": [
        {
          "title": "Wayback Machine capture, 9 Dec 2025 (page title: AI content detector | ChatGPT detector & AI checker for GPT-4 - WRITER)",
          "url": "https://web.archive.org/web/20251209115654/https://writer.com/ai-content-detector/",
          "date": "2025-12-09"
        },
        {
          "title": "Wayback Machine capture, 24 Dec 2025 (HTTP 301 to writer.com/#ai-detector)",
          "url": "https://web.archive.org/web/20251224111118/https://writer.com/ai-content-detector/",
          "date": "2025-12-24"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://writer.com/ai-content-detector/",
            "checkedAt": "2026-10-22T05:14:57.254Z",
            "httpStatus": 200,
            "outcome": "redirected",
            "error": null,
            "finalUrl": "https://writer.com/#ai-detector",
            "redirectChain": [
              {
                "url": "https://writer.com/ai-content-detector/",
                "status": 301,
                "location": "https://writer.com/#ai-detector"
              },
              {
                "url": "https://writer.com/#ai-detector",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20251209115654",
                "date": "2025-12-09",
                "status": "200",
                "original": "https://writer.com/ai-content-detector/",
                "url": "https://web.archive.org/web/20251209115654/https://writer.com/ai-content-detector/",
                "title": "AI content detector | ChatGPT detector & AI checker for GPT-4 - WRITER"
              },
              "firstBadAfterOk": {
                "timestamp": "20251224111118",
                "date": "2025-12-24",
                "status": "301",
                "original": "https://writer.com/ai-content-detector/",
                "url": "https://web.archive.org/web/20251224111118/https://writer.com/ai-content-detector/"
              }
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "openai-ai-text-classifier",
      "name": "AI Text Classifier",
      "operator": "OpenAI",
      "kind": "company-tool",
      "status": "withdrawn",
      "launched": {
        "on": "2023-01-31",
        "basis": "statement"
      },
      "endedOn": {
        "on": "2023-07-20",
        "basis": "statement"
      },
      "urls": [
        "https://platform.openai.com/ai-text-classifier"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": null,
      "statement": {
        "quote": "As of July 20, 2023, the AI classifier is no longer available due to its low rate of accuracy.",
        "url": "https://openai.com/index/new-ai-classifier-for-indicating-ai-written-text/"
      },
      "sources": [
        {
          "title": "OpenAI: New AI classifier for indicating AI-written text",
          "url": "https://openai.com/index/new-ai-classifier-for-indicating-ai-written-text/",
          "date": "2023-01-31"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://platform.openai.com/ai-text-classifier",
            "checkedAt": "2026-10-22T05:14:42.844Z",
            "httpStatus": 403,
            "outcome": "client-error",
            "error": null,
            "finalUrl": "https://platform.openai.com/ai-text-classifier",
            "redirectChain": [
              {
                "url": "https://platform.openai.com/ai-text-classifier",
                "status": 403,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20261014141221",
                "date": "2026-10-14",
                "status": "200",
                "original": "https://platform.openai.com/ai-text-classifier",
                "url": "https://web.archive.org/web/20261014141221/https://platform.openai.com/ai-text-classifier",
                "title": "OpenAI Platform"
              },
              "firstBadAfterOk": null
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "ai-writing-check",
      "name": "AI Writing Check",
      "operator": "Quill.org and CommonLit",
      "kind": "nonprofit-tool",
      "status": "withdrawn",
      "launched": {
        "on": "2023-01",
        "basis": "statement"
      },
      "endedOn": {
        "on": "2023-08",
        "basis": "statement"
      },
      "urls": [
        "https://aiwritingcheck.org/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20230717120414/https://aiwritingcheck.org/",
        "date": "2023-07-17"
      },
      "statement": {
        "quote": "Educators, we have taken down AI Writing Check because the new versions of Generative AI tools are too sophisticated for detection by AI.",
        "url": "https://aiwritingcheck.org/"
      },
      "sources": [
        {
          "title": "AI Writing Check: August 2023 Update - AI Writing Check is no longer available",
          "url": "https://aiwritingcheck.org/",
          "date": "2026-10-22"
        },
        {
          "title": "Wayback Machine capture, 17 Jul 2023 (the working tool)",
          "url": "https://web.archive.org/web/20230717120414/https://aiwritingcheck.org/",
          "date": "2023-07-17"
        },
        {
          "title": "Wayback Machine capture, 12 Sep 2023 (the shutdown notice)",
          "url": "https://web.archive.org/web/20230912032623/https://aiwritingcheck.org/",
          "date": "2023-09-12"
        },
        {
          "title": "Liang et al. (2023), GPT detectors are biased against non-native English writers. Patterns 4(7)",
          "url": "https://doi.org/10.1016/j.patter.2023.100779"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://aiwritingcheck.org/",
            "checkedAt": "2026-10-22T05:11:38.664Z",
            "httpStatus": 200,
            "outcome": "ok",
            "error": null,
            "finalUrl": "https://aiwritingcheck.org/",
            "redirectChain": [
              {
                "url": "https://aiwritingcheck.org/",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20260908054618",
                "date": "2026-09-08",
                "status": "200",
                "original": "https://aiwritingcheck.org/",
                "url": "https://web.archive.org/web/20260908054618/https://aiwritingcheck.org/",
                "title": "AI Writing Check"
              },
              "firstBadAfterOk": null
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "aicheatcheck",
      "name": "AICheatCheck",
      "operator": "The Checker AI",
      "kind": "company-tool",
      "status": "redirected",
      "launched": null,
      "endedOn": null,
      "urls": [
        "https://aicheatcheck.com/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20260611141255/https://aicheatcheck.com/",
        "date": "2026-06-11"
      },
      "statement": null,
      "sources": [
        {
          "title": "Wayback Machine capture, 16 Jan 2023 (page title: Demo - AICheatCheck)",
          "url": "https://web.archive.org/web/20230116144057/https://www.aicheatcheck.com/",
          "date": "2023-01-16"
        },
        {
          "title": "Wayback Machine capture, 23 Sep 2023 (page title: Demo - The Checker AI)",
          "url": "https://web.archive.org/web/20230923184920/https://www.aicheatcheck.com/",
          "date": "2023-09-23"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://aicheatcheck.com/",
            "checkedAt": "2026-10-22T05:11:51.419Z",
            "httpStatus": 200,
            "outcome": "redirected",
            "error": null,
            "finalUrl": "https://thechecker.ai/",
            "redirectChain": [
              {
                "url": "https://aicheatcheck.com/",
                "status": 301,
                "location": "https://thechecker.ai/"
              },
              {
                "url": "https://thechecker.ai/",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20260611141255",
                "date": "2026-06-11",
                "status": "200",
                "original": "https://aicheatcheck.com/",
                "url": "https://web.archive.org/web/20260611141255/https://aicheatcheck.com/",
                "title": "Demo - The Checker AI"
              },
              "firstBadAfterOk": null
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "detectgpt-demo",
      "name": "DetectGPT (demo)",
      "operator": "Mitchell et al., authors of the DetectGPT paper",
      "kind": "research-demo",
      "status": "offline",
      "launched": null,
      "endedOn": {
        "between": [
          "2023-08-20",
          "2023-11-26"
        ],
        "basis": "wayback"
      },
      "urls": [
        "https://detectgpt.ericmitchell.ai/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20230820173304/https://detectgpt.ericmitchell.ai/",
        "date": "2023-08-20"
      },
      "statement": null,
      "sources": [
        {
          "title": "Mitchell et al. (2023), DetectGPT: Zero-Shot Machine-Generated Text Detection using Probability Curvature (arXiv:2301.11305)",
          "url": "https://arxiv.org/abs/2301.11305",
          "date": "2023-01-26"
        },
        {
          "title": "Wayback Machine capture, 20 Aug 2023 (page title: DetectGPT: a GPT-2 Detector)",
          "url": "https://web.archive.org/web/20230820173304/https://detectgpt.ericmitchell.ai/",
          "date": "2023-08-20"
        },
        {
          "title": "Wayback Machine capture, 26 Nov 2023 (HTTP 404)",
          "url": "https://web.archive.org/web/20231126220352/https://detectgpt.ericmitchell.ai/",
          "date": "2023-11-26"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://detectgpt.ericmitchell.ai/",
            "checkedAt": "2026-10-22T05:12:42.047Z",
            "httpStatus": 404,
            "outcome": "client-error",
            "error": null,
            "finalUrl": "https://detectgpt.ericmitchell.ai/",
            "redirectChain": [
              {
                "url": "https://detectgpt.ericmitchell.ai/",
                "status": 404,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20230820173304",
                "date": "2023-08-20",
                "status": "200",
                "original": "https://detectgpt.ericmitchell.ai/",
                "url": "https://web.archive.org/web/20230820173304/https://detectgpt.ericmitchell.ai/",
                "title": "DetectGPT: a GPT-2 Detector"
              },
              "firstBadAfterOk": {
                "timestamp": "20231126220352",
                "date": "2023-11-26",
                "status": "404",
                "original": "https://detectgpt.ericmitchell.ai/",
                "url": "https://web.archive.org/web/20231126220352/https://detectgpt.ericmitchell.ai/"
              }
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "gltr",
      "name": "GLTR (demo)",
      "operator": "MIT-IBM Watson AI Lab and Harvard NLP",
      "kind": "research-demo",
      "status": "moved",
      "launched": null,
      "endedOn": {
        "between": [
          "2023-07-24",
          "2023-11-27"
        ],
        "basis": "wayback"
      },
      "urls": [
        "http://gltr.io/dist/index.html",
        "http://gltr.io/dist/"
      ],
      "movedTo": "http://demo.gltr.io/client/index.html",
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20230721074117/http://gltr.io/dist/index.html",
        "date": "2023-07-21"
      },
      "statement": null,
      "sources": [
        {
          "title": "Gehrmann, Strobelt & Rush (2019), GLTR: Statistical Detection and Visualization of Generated Text (arXiv:1906.04043)",
          "url": "https://arxiv.org/abs/1906.04043",
          "date": "2019-06-10"
        },
        {
          "title": "Wayback Machine capture, 21 Jul 2023 (page title: GLTR (glitter) v0.5)",
          "url": "https://web.archive.org/web/20230721074117/http://gltr.io/dist/index.html",
          "date": "2023-07-21"
        },
        {
          "title": "Wayback Machine capture, 27 Nov 2023 (HTTP 404)",
          "url": "https://web.archive.org/web/20231127091012/http://gltr.io/dist/",
          "date": "2023-11-27"
        },
        {
          "title": "Catching Unicorns with GLTR (project page on gltr.io)",
          "url": "http://gltr.io/",
          "date": "2026-10-22"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "http://gltr.io/dist/index.html",
            "checkedAt": "2026-10-22T05:22:31.347Z",
            "httpStatus": 404,
            "outcome": "client-error",
            "error": null,
            "finalUrl": "http://gltr.io/dist/index.html",
            "redirectChain": [
              {
                "url": "http://gltr.io/dist/index.html",
                "status": 404,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20230724054842",
                "date": "2023-07-24",
                "status": "200",
                "original": "http://gltr.io./dist/index.html",
                "url": "https://web.archive.org/web/20230724054842/http://gltr.io./dist/index.html",
                "title": "GLTR (glitter) v0.5"
              },
              "firstBadAfterOk": {
                "timestamp": "20240106145007",
                "date": "2024-01-06",
                "status": "404",
                "original": "http://gltr.io/dist/index.html",
                "url": "https://web.archive.org/web/20240106145007/http://gltr.io/dist/index.html"
              }
            }
          },
          {
            "url": "http://gltr.io/dist/",
            "checkedAt": "2026-10-22T05:22:54.028Z",
            "httpStatus": 404,
            "outcome": "client-error",
            "error": null,
            "finalUrl": "http://gltr.io/dist/",
            "redirectChain": [
              {
                "url": "http://gltr.io/dist/",
                "status": 404,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20230724054832",
                "date": "2023-07-24",
                "status": "200",
                "original": "http://gltr.io./dist/",
                "url": "https://web.archive.org/web/20230724054832/http://gltr.io./dist/",
                "title": "GLTR (glitter) v0.5"
              },
              "firstBadAfterOk": {
                "timestamp": "20231127091012",
                "date": "2023-11-27",
                "status": "404",
                "original": "http://gltr.io/dist/",
                "url": "https://web.archive.org/web/20231127091012/http://gltr.io/dist/"
              }
            }
          },
          {
            "url": "http://demo.gltr.io/client/index.html",
            "checkedAt": "2026-10-22T05:23:10.342Z",
            "httpStatus": 200,
            "outcome": "ok",
            "error": null,
            "finalUrl": "http://demo.gltr.io/client/index.html",
            "redirectChain": [
              {
                "url": "http://demo.gltr.io/client/index.html",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20260615015829",
                "date": "2026-06-15",
                "status": "200",
                "original": "http://demo.gltr.io/client/index.html",
                "url": "https://web.archive.org/web/20260615015829/http://demo.gltr.io/client/index.html",
                "title": "GLTR (glitter) v0.5"
              },
              "firstBadAfterOk": null
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "gpt-2-output-detector",
      "name": "GPT-2 Output Detector (demo)",
      "operator": "OpenAI, hosted on Hugging Face",
      "kind": "research-demo",
      "status": "offline",
      "launched": null,
      "endedOn": {
        "between": [
          "2026-03-08",
          "2026-03-31"
        ],
        "basis": "wayback"
      },
      "urls": [
        "https://huggingface.co/openai-detector",
        "https://openai-openai-detector.hf.space/"
      ],
      "movedTo": null,
      "hfSpace": "openai/openai-detector",
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20260308235541/https://openai-openai-detector.hf.space/",
        "date": "2026-03-08"
      },
      "statement": null,
      "sources": [
        {
          "title": "Wayback Machine capture, 8 Mar 2026 (page title: GPT-2 Output Detector)",
          "url": "https://web.archive.org/web/20260308235541/https://openai-openai-detector.hf.space/",
          "date": "2026-03-08"
        },
        {
          "title": "Wayback Machine capture, 31 Mar 2026 (HTTP 503)",
          "url": "https://web.archive.org/web/20260331155357/https://openai-openai-detector.hf.space/",
          "date": "2026-03-31"
        },
        {
          "title": "Hugging Face Spaces API: openai/openai-detector",
          "url": "https://huggingface.co/api/spaces/openai/openai-detector",
          "date": "2026-10-22"
        },
        {
          "title": "Liang et al. (2023), GPT detectors are biased against non-native English writers. Patterns 4(7)",
          "url": "https://doi.org/10.1016/j.patter.2023.100779"
        },
        {
          "title": "Weber-Wulff et al. (2023), Testing of detection tools for AI-generated text. International Journal for Educational Integrity 19, 26",
          "url": "https://doi.org/10.1007/s40979-023-00146-z",
          "date": "2023-12-25"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://huggingface.co/openai-detector",
            "checkedAt": "2026-10-22T05:13:31.512Z",
            "httpStatus": 503,
            "outcome": "server-error",
            "error": null,
            "finalUrl": "https://openai-openai-detector.hf.space/",
            "redirectChain": [
              {
                "url": "https://huggingface.co/openai-detector",
                "status": 308,
                "location": "https://openai-openai-detector.hf.space"
              },
              {
                "url": "https://openai-openai-detector.hf.space/",
                "status": 503,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20230102080523",
                "date": "2023-01-02",
                "status": "200",
                "original": "https://huggingface.co/openai-detector/",
                "url": "https://web.archive.org/web/20230102080523/https://huggingface.co/openai-detector/",
                "title": "GPT-2 Output Detector"
              },
              "firstBadAfterOk": {
                "timestamp": "20230110052252",
                "date": "2023-01-10",
                "status": "308",
                "original": "https://huggingface.co/openai-detector/",
                "url": "https://web.archive.org/web/20230110052252/https://huggingface.co/openai-detector/"
              }
            }
          },
          {
            "url": "https://openai-openai-detector.hf.space/",
            "checkedAt": "2026-10-22T05:13:46.287Z",
            "httpStatus": 503,
            "outcome": "server-error",
            "error": null,
            "finalUrl": "https://openai-openai-detector.hf.space/",
            "redirectChain": [
              {
                "url": "https://openai-openai-detector.hf.space/",
                "status": 503,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20260308235541",
                "date": "2026-03-08",
                "status": "200",
                "original": "https://openai-openai-detector.hf.space/",
                "url": "https://web.archive.org/web/20260308235541/https://openai-openai-detector.hf.space/",
                "title": "GPT-2 Output Detector"
              },
              "firstBadAfterOk": {
                "timestamp": "20260331155357",
                "date": "2026-03-31",
                "status": "503",
                "original": "https://openai-openai-detector.hf.space/",
                "url": "https://web.archive.org/web/20260331155357/https://openai-openai-detector.hf.space/"
              }
            }
          }
        ],
        "hfSpace": {
          "id": "openai/openai-detector",
          "checkedAt": "2026-10-22T05:14:09.198Z",
          "stage": "PAUSED",
          "lastModified": "2023-01-25T22:46:18.000Z",
          "createdAt": "2023-01-05T08:49:19.000Z"
        }
      }
    },
    {
      "id": "gptradar",
      "name": "GPTRadar",
      "operator": "Neuraltext",
      "kind": "company-tool",
      "status": "redirected",
      "launched": null,
      "endedOn": {
        "between": [
          "2026-07-12",
          "2026-08-14"
        ],
        "basis": "wayback"
      },
      "urls": [
        "https://gptradar.com/"
      ],
      "movedTo": null,
      "hfSpace": null,
      "lastGoodSnapshot": {
        "url": "https://web.archive.org/web/20260712054433/https://gptradar.com/",
        "date": "2026-07-12"
      },
      "statement": null,
      "sources": [
        {
          "title": "Wayback Machine capture, 1 Mar 2025 (page title: GPT Radar | AI text detector app; footer: GPT Radar is a Neuraltext experiment)",
          "url": "https://web.archive.org/web/20250301062830/https://gptradar.com/",
          "date": "2025-03-01"
        },
        {
          "title": "Wayback Machine capture, 12 Jul 2026 (page title: GPT Radar | AI text detector app)",
          "url": "https://web.archive.org/web/20260712054433/https://gptradar.com/",
          "date": "2026-07-12"
        },
        {
          "title": "Wayback Machine capture, 14 Aug 2026 (HTTP 301 to neuraltext.com)",
          "url": "https://web.archive.org/web/20260814194723/https://gptradar.com/",
          "date": "2026-08-14"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://gptradar.com/",
            "checkedAt": "2026-10-22T05:14:09.346Z",
            "httpStatus": 200,
            "outcome": "redirected",
            "error": null,
            "finalUrl": "https://neuraltext.com/",
            "redirectChain": [
              {
                "url": "https://gptradar.com/",
                "status": 301,
                "location": "https://neuraltext.com/"
              },
              {
                "url": "https://neuraltext.com/",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20260712054433",
                "date": "2026-07-12",
                "status": "200",
                "original": "https://gptradar.com/",
                "url": "https://web.archive.org/web/20260712054433/https://gptradar.com/",
                "title": "GPT Radar | AI text detector app"
              },
              "firstBadAfterOk": {
                "timestamp": "20260814194723",
                "date": "2026-08-14",
                "status": "301",
                "original": "https://gptradar.com/",
                "url": "https://web.archive.org/web/20260814194723/https://gptradar.com/"
              }
            }
          }
        ],
        "hfSpace": null
      }
    },
    {
      "id": "hc3-chatgpt-detector",
      "name": "HC3 ChatGPT Detector (single-text Space)",
      "operator": "Hello-SimpleAI (HC3 project)",
      "kind": "research-demo",
      "status": "broken",
      "launched": {
        "on": "2023-01-10",
        "basis": "platform"
      },
      "endedOn": null,
      "urls": [
        "https://huggingface.co/spaces/Hello-SimpleAI/chatgpt-detector-single"
      ],
      "movedTo": null,
      "hfSpace": "Hello-SimpleAI/chatgpt-detector-single",
      "lastGoodSnapshot": null,
      "statement": null,
      "sources": [
        {
          "title": "Hugging Face Spaces API: Hello-SimpleAI/chatgpt-detector-single",
          "url": "https://huggingface.co/api/spaces/Hello-SimpleAI/chatgpt-detector-single",
          "date": "2026-10-22"
        },
        {
          "title": "Guo et al. (2023), How Close is ChatGPT to Human Experts? Comparison Corpus, Evaluation, and Detection (arXiv:2301.07597)",
          "url": "https://arxiv.org/abs/2301.07597",
          "date": "2023-01-18"
        }
      ],
      "check": {
        "urls": [
          {
            "url": "https://huggingface.co/spaces/Hello-SimpleAI/chatgpt-detector-single",
            "checkedAt": "2026-10-22T05:14:24.918Z",
            "httpStatus": 200,
            "outcome": "ok",
            "error": null,
            "finalUrl": "https://huggingface.co/spaces/Hello-SimpleAI/chatgpt-detector-single",
            "redirectChain": [
              {
                "url": "https://huggingface.co/spaces/Hello-SimpleAI/chatgpt-detector-single",
                "status": 200,
                "location": null
              }
            ],
            "wayback": {
              "lastOk": {
                "timestamp": "20261007065635",
                "date": "2026-10-07",
                "status": "200",
                "original": "https://huggingface.co/spaces/Hello-SimpleAI/chatgpt-detector-single",
                "url": "https://web.archive.org/web/20261007065635/https://huggingface.co/spaces/Hello-SimpleAI/chatgpt-detector-single",
                "title": "Chatgpt Detector Single - a Hugging Face Space by Hello-SimpleAI"
              },
              "firstBadAfterOk": null
            }
          }
        ],
        "hfSpace": {
          "id": "Hello-SimpleAI/chatgpt-detector-single",
          "checkedAt": "2026-10-22T05:14:42.720Z",
          "stage": "RUNTIME_ERROR",
          "lastModified": "2024-12-02T01:35:12.000Z",
          "createdAt": "2023-01-10T23:59:55.000Z"
        }
      }
    }
  ]
}
