645 Ventures

Activity from announced rounds

Activity in this selectionOct 6, 2026 · AI · Sep 7, 2026

645 Ventures is an investment firm whose partners include Aaron Holiday and Nnamdi Okike. Its AI infrastructure and developer-tools coverage identifies Gimlet Labs, while its own communications connect the firm to Ellis.

Recorded funding activity

The recorded activity includes Gimlet’s Series B for a compiler and cloud platform that distribute AI inference across processor types. Seed financings for Ellis, Fish Audio and General Analysis cover private-credit operations, voice generation and security for AI agents. These examples describe announcements covered by RoundOS rather than the firm’s complete portfolio.

Sources
Rounds participated in
1
Confirmed lead rounds
0
All roles disclosed
New companies
1
First participation on record · 0 follow-on
Funding in participating rounds
$300M
1 disclosed · full round size, not this investor’s share

By stage

Series B1

By primary sector

AI1

By country

United States1

Rounds

1 in this selection
Gimlet Labs

Provides a cloud inference platform and compiler that distribute AI workloads across different processor types.

$300MSeries B
Participant