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NeuroXess says its Mandarin-decoding brain implant runs at 300 characters a minute, faster than native speech
Shanghai-based NeuroXess says a 35-year-old woman with epilepsy fitted with its 256-channel surface-cortex implant has been decoded reading Mandarin at 300 characters per minute through a large language model layer, faster than the roughly 220 cpm rate of a native Mandarin first-language speaker. Co-founder and chief scientist Tiger Tao disclosed the figure to Nature on 19 May 2026. The underlying paper has not yet been published, but the result sits on top of NeuroXess's already peer-reviewed Science Advances paper from 5 November 2025 (71.2% accuracy across 394 Mandarin syllables in a 43-year-old woman with epilepsy).