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ValsAI: GPT-6 Astra and Opus 5.5 beat dedicated AI-text detectors

ValsAI says that with equal numbers of human and AI samples, GPT-6 Astra and Opus 5.5 exceed all specialized AI-text detectors in accuracy at a fraction of the cost.

Vals AI
@ValsAIArchived 2026.10.02Originally posted 2026.10.01
ValsAI: GPT-6 Astra and Opus 5.5 beat dedicated AI-text detectors
Vals AI @ValsAIOriginally posted 2026.10.01
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GPT-6-Astra and Opus 5.5 exceed the performance of all specialized detectors at a fraction of the cost on accuracy (with an equal number of human and AI samples).

x.com/valsai/status/2105456024304185582Archived 2026.10.02 10:07