service
OpenAI AI Text Classifier
OpenAI released a classifier intended to indicate AI-written text, then later made it unavailable due to its low rate of accuracy.
Current state
OpenAI AI Text Classifier
The classifier is no longer available, according to OpenAI’s update note.
Last known URL: https://openai.com/index/new-ai-classifier-for-indicating-ai-written-text/
Key facts
- Operator
- OpenAI
- Status
- shutdown
- Entity type
- service
- Country
- United States
- Launched
- 2023-01-31
- Ended / changed
- 2023-07-20
- URL status
- live verified
- Last reviewed
- 2026-06-05
Primary evidence
New AI classifier for indicating AI-written text
OpenAI · official announcement · high reliability
Open sourceTimeline
Dated lifecycle events
- 2023-07-20AI Text Classifier became unavailableshutdown
OpenAI updated the classifier announcement to state that the AI Text Classifier was no longer available due to its low rate of accuracy.
Evidence
Source links supporting this record
OpenAI · official_announcement · Accessed 2026-06-05
Supports: shutdown, current_state, reason_note
Correction path
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