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TypeSafe AI | Jev

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AI lab building System One models, starting from Jev — models that return typed, calibrated decisions software can act on

San Francisco, United StatesFounded 2024AI

Valuation $5–10B Last recorded · 2026

Headcount <100 Current team size

Total funding $500M–1B Disclosed equity funding

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About TypeSafe AI | Jev

TypeSafe AI is a San Francisco AI lab building machine-native intelligence for automation inside software. After two years in stealth it released Jev, its first System One Model: a frontier model class that takes unstructured program state and returns typed, probabilistic decisions software can act on, rather than chat-style text. The company built a new architecture, a parallel sampler, and Reinforcement Learning for Calibrated Decisions (RLCD). Jev is offered via API in early access for workflows such as routing, scoring, extraction, and verification. Founded in 2024 by Diogo Almeida (CEO), Sasha Sheng (COO) and Erik Gafni (CTO). It emerged from stealth in September 2026 with a $40 million seed round led by DCVC.

MoreLess Source: Dealroom company data

At a glance

Status: Operational
Founded: 2024
Headquarters: San Francisco, United States
Employees: 33
Open positions: 14
Dealroom signal: 60.1/100
Industry: Enterprise Software
Sector: AI, genAI Model Maker, Core AI, out of stealth, API, Verified Unicorns and $1B Exits, Generative AI, ai model layer
Technology: Artificial Intelligence, Deep Learning, Machine Learning, Deep Tech
Business model: SaaS
Client focus: B2B
Links: Website LinkedIn X

News

Funding history

2 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
SERIES A✓Equity / VC	Oct 2026	$870M	$7.5B	Andreessen Horowitz · DCVC · Sequoia	↗
SEED✓Equity / VC	Sep 2026	$40M	$240M	DCVC	↗

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Growth signals

TypeSafe AI | Jev website traffic

Latest recorded traffic for TypeSafe AI | Jev is 6.1M monthly website visits, up 50733.3% over the last three months.

Latest monthly visits6.1M 3-month web change+50733.3%

Monthly website visitsMar 2026–Oct 2026

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Open positions

Openings linked to this company in Dealroom

8 distinct openings shownExplore hiring signals →

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