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Sabi co-founder Rahul Chhabra: $50M raised to build ‘the world’s most wearable BCI cap’

Rahul Chhabra @rahulchhabra07X

Why it matters

First-hand funding announcement with very high reach (~9.18M views on Oct 10, fxtwitter, likely boosted); a follow-up post says TSMC fabricated its sensor chip.

Summary

Rahul Chhabra announced that Sabi raised $50M from Khosla Ventures, Accel, Initialized, Kevin Weil and DST Global to build a wearable brain-computer-interface cap, linking Forbes. A follow-up post in the thread (https://x.com/rahulchhabra07/status/2108558371578380543, ~504k views) says the team built non-contact neuro-sensors that read signals through hair and thanks TSMC for fabricating the chip. Read via api.fxtwitter.com on 2026-10-10: about 9.18M views, 3.2k likes, 744 replies. The views-to-likes ratio suggests paid promotion; not verified.

Archived text

we’ve raised $50M from Khosla Ventures, Accel, Initialized, Kevin Weil, DST Global

to build the world’s most wearable BCI cap at Sabi

read more here: https://www.forbes.com/sites/rashishrivastava/2026/10/09/vinod-khosla-backs-an-ai-startup-building-a-mind-reading-baseball-cap/

Source: x.com/rahulchhabra07/status/2108558367258186220Archived 2026-10-10 via fxtwitter (unofficial).Counts: 9,213,466 views, 3,235 likes, 693 reposts, 744 replies (at fetch time)

Cited in

  1. Chips & compute 101 days after the cutoff

    Sabi raises a $50M seed led by Khosla Ventures for a non-invasive ‘brain-AI interface’ baseball cap that turns imagined speech into prompts

People in this post

Kevin Weil, Former CPO and head of OpenAI for Science (left April 2026); Vinod Khosla, Founder, Khosla Ventures