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Smallest.ai

Voice AI InfrastructureSan Francisco, United States

Smallest.ai, incorporated as Smallest Inc., builds real-time voice AI infrastructure for enterprises, including speech recognition, speech generation and speech-to-speech models. Its Voice 4.0 platform is built on an architecture the company calls Hydra, which processes listening, reasoning and speech generation in parallel rather than in sequence.

1StartupFox story
Voice AI InfrastructureSector
Aug 2026Latest coverage

Funding

Smallest.ai has raised $21M across 2 disclosed rounds.

$21MRaised
$13MLatest round
2Events
Chart appears once 1 more funding round is recorded — below that a chart shows less than the table does.
Not disclosed
Jul 2026Round$13MSeligman Ventures, Sierra Ventures, 3one4 Capital, Better Capital, Upsparks Capital, Schema Ventures, Tiny VC, DeVC, Mission Street Capital Not disclosedsmallest.ai ↗
Oct 2025Round$8MSierra Ventures, 3one4 Capitalsiliconangle.com ↗

Investor roster

Every disclosed backer and how often they've written a cheque — repeat names are the strongest conviction signal on the cap table.

New · Latest leadSeligman Ventures1 round · 2026
3one4 Capital2 rounds · since 2025
Sierra Ventures2 rounds · since 2025
Better Capital1 round · 2026
DeVC1 round · 2026
Mission Street Capital1 round · 2026
Schema Ventures1 round · 2026
Tiny VC1 round · 2026
Upsparks Capital1 round · 2026
Aggregated automatically from the disclosed rounds above.

Leadership

SKSudarshan KamathCo-founder · CEOAMAkshat MandloiCo-founder · CTO

The Smallest.ai journey

Oct 2025 · funding
Round — $8M, led by Sierra Ventures.
May 2026 · milestone
Partners with Tenstorrent to run its Lightning V2 model on P100 accelerators, with the companies claiming 550 simultaneous voice calls on roughly $27,000 of hardware against about $100,000 of comparable Nvidia GPUs. ↗
Jul 2026 · funding
Round — $13M at Not disclosed, led by Seligman Ventures.
30 Jul 2026 · milestone
Launches Voice 4.0 alongside its Series A, built on an asynchronous speech-to-speech architecture called Hydra that processes listening, reasoning and speech generation in parallel. ↗

The rest of Smallest.ai's profile is free

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Latest on Smallest.ai

Funding
Smallest.ai Raises $13 Million Series A Led by Seligman Ventures to Scale Real-Time Voice AI
4 AUG 2026 · 5 MIN READ

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Frequently Asked

What is Smallest.ai?

Smallest.ai, incorporated as Smallest Inc., builds real-time voice AI infrastructure for enterprises, including speech recognition, speech generation and speech-to-speech models. Its Voice 4.0 platform is built on an architecture the company calls Hydra, which processes listening, reasoning and speech generation in parallel rather than in sequence.

Who founded Smallest.ai?

Smallest.ai is associated with Sudarshan Kamath, Akshat Mandloi.

How much funding has Smallest.ai raised?

Smallest.ai has raised $21M across 2 disclosed rounds. The most recent was a $13M round in Jul 2026.

Who are Smallest.ai's investors?

Disclosed investors in Smallest.ai include Seligman Ventures, Sierra Ventures, 3one4 Capital, Better Capital, Upsparks Capital, Schema Ventures, Tiny VC, DeVC, Mission Street Capital.

What is Smallest.ai's valuation?

Smallest.ai was last reported at Not disclosed, at the time of its round in Jul 2026.

What is the latest news on Smallest.ai?

The most recent StartupFox coverage is “Smallest.ai Raises $13 Million Series A Led by Seligman Ventures to Scale Real-Time Voice AI” (4 August 2026). All stories are listed on this page.