Everyday-wear brain-computer interface: a baseball cap with up to 100,000 sensors that turns thoughts into AI prompts
Sabi is a Palo Alto startup building a non-invasive brain-computer interface you can wear every day: a baseball cap lined with up to 100,000 small sensors whose signals a 'brain foundation model', trained on 100,000 hours of labelled neural data, turns into text prompts so people can talk to AI agents just by thinking. Founded in May 2024 by college roommates Rahul Chhabra (CEO) and Atmadeep Banerjee (CTO), it raised a $50M seed led by Vinod Khosla with Accel, DST Global, Initialized Capital and Kevin Weil, announced October 8, 2026, at a reported $600M valuation. The cap is due in 2027, with a CES demo planned for January.
AI📍 Palo Alto, CAFounded 2024
Current Valuation
$600M
as of 2026-10-08
PRIVATE
QL Price
$600M
0% vs last round
QuantLogix's current estimate for Sabi, published 2026-10-10 — in line with the last disclosed round of $600M (2026-10-08).
Confidence
low
Basis
round anchored
What backs this price
Last disclosed round
$600M
2026-10-08
weight 1
How this price has held up
No round has priced for Sabi since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-10-10 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, Sabi, 2026-10-10 (28e6f027a9513b90).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is Sabi going public?
No. Sabi is private and has not filed to go public. There is no S-1 on file.
What is Sabi's valuation in 2026?
Sabi is valued at $600M as of 10/08/2026, set by its Seed ($50M, Oct 2026). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Sabi filed an S-1?
No public S-1 is on file for Sabi.
Who are Sabi's investors?
Sabi's investors include Khosla Ventures, Accel, DST Global, Initialized Capital, Kevin Weil.
How much has Sabi raised?
Sabi has raised $50M in total across 1 disclosed round, most recently a Seed of $50M in Oct 2026.
Is Sabi publicly traded — can you buy Sabi stock?
No. Sabi is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Sabi on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Rahul Chhabra
Founded
2024
HQ
Palo Alto, CA
Total Raised
$50M
Growth
Pre-launch; trained on recordings from 100+ paid contractors; CES demo planned January 2027
Last Round
Seed — $50M (Oct 2026) · Lead: Khosla Ventures
IPO Status
private
Fundraising Status
Seed · $50M · this month
privateTotal raised $50M1 disclosed rounds
Seed Impact
Round Size
$50M
Primary financing announced
Post-Money Valuation
$600M
Company-announced mark
Round / Post-Money
8.3%
New capital ÷ post-money
Disclosed Funding
$50M
Cumulative disclosed rounds
Step-up compares disclosed post-money valuations. Round / post-money is a financing-size ratio, not an ownership or dilution estimate.
Funding History
Round
Amount
Date
Lead Investor
Post-Money
Seed
$50M
Oct 2026
Khosla Ventures
$600M
Vertical Intelligence — AI / ML
AI / ML registry data for Sabi has not been collected yet — the weekly vertical sweep hasn't reached this company. Check back soon.
Talent Signal
Hiring trend
● First snapshot
trend accrues with monthly sweeps
Open roles
9
via ashby
Product-build share
78%
engineering, research, product, design
Trajectory
steady
heavy product build — 78% of open roles are product-building functions (engineering/research/product) — 5 of 9 open roles are engineering.
Actively hiring with no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Lead Audio EngineerLead Camera EngineerLead Electrical EngineerLead Firmware EngineerLead Product DesignerLead Reliability Engineer
Counted from Sabi's live job board as of 2026-10-10; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Rahul ChhabraAtmadeep Banerjee
Investors
Khosla Ventures · Accel · DST Global · Initialized Capital · Kevin Weil
Products
Non-invasive BCI baseball cap with up to 100,000 one-to-five-millimeter sensors covering the scalp
Brain foundation model trained on 100,000 hours of labelled neural data that turns thoughts into text prompts for AI agents
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-10-08. Refreshed quarterly.