Alljoined applies deep learning to electroencephalography (EEG) data to decode thoughts and reconstruct visual content from brain signals. Founded in 2023 and based in San Francisco, the company works with large-scale EEG datasets to advance non-invasive brain-computer interfaces, publishing research at top machine learning and computer vision venues including ICML and CVPR.
The company has demonstrated image reconstruction from EEG signals and an end-to-end thought-decoding system running on consumer-grade hardware costing approximately $2,200. Its technical work spans neural decoding, brain embeddings, multimodal learning, and computer vision applied to EEG analysis, with a focus on making the technology accessible rather than requiring invasive procedures or expensive specialised equipment.
Alljoined's research targets applications across healthcare, education, and human-computer interaction. The company is backed by Khosla Ventures and other investors, operating as a small team of researchers and engineers oriented toward developing objective measures of brain activity rather than replacing human cognition.




