TypeSafe AI
typesafe.ai
Actively hiring
Artificial Intelligence
AI Research Labs
As featured in
View 9 jobs
Claim pageClaim
Follow
Overview
Connections
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Team
10
US Form 5500 (plan participants) · Dec 2025
Hiring now
11
+6 posted in 30 days
Backers
2
Andreessen Horowitz, Sequoia Capital
Momentum
37/100
hiring for its size, in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 14
On the Hacker News front page We’re releasing Jev 1.14.0 along with experimental features for dreamers · 335 points
Sep 16
Launched TypeSafe AI debuts model for machines that plays Doom · theregister
2024
Founded
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Hacker News stories
14
best: 1989 points
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
MakerMaker is a small artificial intelligence research company in San Francisco building autonomous research agents for recursive…
Headquartered in San Francisco, California, CTGT is an applied AI research laboratory and enterprise software startup specializing in…
Withsyzygy is an artificial intelligence company working on more capable models that need less memory, compute and energy. It is hiring a…
Zyphra is an artificial intelligence research company that develops open foundation models, including the Zamba hybrid state-space language…
Ineffable Intelligence is an AI research company whose mission is to make first contact with superintelligence.
Imbue is an artificial intelligence research company building agents that can reason and act reliably rather than produce plausible text…
Overview
Headquartered in San Francisco, California, TypeSafe AI is an artificial intelligence infrastructure company specializing in machine-native decision models. Founded in 2024, the enterprise develops discriminative models - such as its flagship model Jev - that return structured, typed outputs with calibrated confidence scores rather than generating conversational text. By delivering ultra-low latency and high cost efficiency, the company enables engineering teams to seamlessly embed reliable, automated decision-making directly into software workflows.
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
Sequoia CapitalVia a fund
410 portfolio companies
Andreessen HorowitzVia a fund
854 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
TypeSafe opens Jev AI to public after rapid adoption forces waitlist removal
TypeSafe AI opens its Jev decision-making model to the public after just five days on a waitlist, but adversarial vulnerabilities raise security
Read more
Report
Jev: System One models for Prod, not God - with Diogo Almeida, CEO, TypeSafe AI
The definitive Jev podcast with its lead creator.
Read more
Report
Latest AI News Jev, the AI that doesn't write text: The gap between the claimed 193.6x speed and the 7x speed measured by users Jev / TypeSafe / Decision AI / Classification / Agent / LLM / Generative AI / AI UtilizationもりたりくTechLab CEO
When people hear 'AI,' many think of a chat that answers questions with text. However, on September 15th, an AI that is the exact opposite was announced: Jev by TypeSafe AI. Jev does not write any text at all. It only returns one of the predefined choices
Read more
Report
Jev 1.13 jaggedness
Jev isn't perfect. Here are some jagged edges we are aware of with jev-1.13. Many of these will be fixed in later versions.
Read more
Report
Jev Complete Cheat Sheet The choice not to have AI write text. A comprehensive guide to implementing the 'AI-era if-statement' with TypeSafe AI's 'Jev' for use in development environments.あきらパパ
I've created a video tutorial on implementing and coding with Jev!In about 25 minutes, I explain everything from diagrams of how it works to how to write the code, verify it in a browser, and five practical use cases.The full picture and practical recipes
Read more
Report
What Everyone Is Getting Wrong About TypeSafe AI's Jev
A closer look at TypeSafe AI's Jev, what it actually does, what is genuinely new, and where the hype goes too far.
Read more
Report
Report
Show more news
Tech stack
Technologies named in job postings at TypeSafe AI over the last 12 months, by layer, with the share of postings for each.
Technologies in use
26
Postings analysed
13
Stack modernity
79/100AI adopter
Languages
Python46%
JavaScript31%
TypeScript31%
SQL15%
Frameworks & libraries
Next.js31%
React.js31%
Tailwind CSS31%
Dagster8%
Databases
ClickHouse8%
Cloud & platforms
Kubernetes31%
OpenAI15%
AWS8%
Apache Kafka8%
AI & ML
LLM92%
Sign in to see how your skills match this stack
Sign In
Full TypeSafe AI tech stack
26 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$285k
Typical range
$214k – $350k
Open positions
12
8
Jobs
Junior
12.5%
Middle
25%
Senior
37.5%
Staff
12.5%
Architect
12.5%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 1 | $285k | $285k |
| Middle | 2 | $278k | $271k – $285k |
| Senior | 3 | $285k | $237k – $285k |
| Staff | 1 | $285k | $285k |
| Architect | 1 | $350k | $350k |
Highest paying role
Head of Legal
$350k
Normalized to USD per year
All salaries at TypeSafe AI
By role, level and city, against the market · 12 jobs with pay
Growth
Hiring Momentum
52/100
Stable
Open positions
12
5 opened / 1 closed in 30 days
Median time-to-fill
118 days
faster than 10% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
27% ▲
Product
18% ▼
Data Science
9% ▲
Communications
9% ▲
Design
9% ▲
Finance
9% ▲
Actively hiring for Backend (+3 in 30 days)
Activity Timeline
+4 jobs in a week
Oct 2026
Added Dagster to stack
Oct 2026
Added ClickHouse to stack
Oct 2026
Added Apache Kafka to stack
Oct 2026
Added SQL to stack
Sep 2026
Added Linux to stack
Sep 2026
Added DNS to stack
Sep 2026
Added Discord to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
San Francisco
San Francisco
United States
HQ
12 open roles 11 posted in 90 days 50% engineering 50-200 est. staff $279k Avg Salary
hires for Backend, Product, AI/ML
Jobs
Apply
$210k – $285k per year · In office · Full-Time · San Francisco
SQL
ClickHouse
Apache Kafka
AI/ML
Dagster
LLM
Apply
$210k – $285k per year · In office · Full-Time · 2+ years exp · San Francisco
Python
JavaScript
TypeScript
LLM
Frontend
Tailwind CSS
Next.js
React.js
DevOps
Kubernetes
Apply
$210k – $285k per year · In office · Full-Time · San Francisco
Python
JavaScript
TypeScript
LLM
Frontend
Tailwind CSS
Next.js
React.js
Apply
$210k – $285k per year · In office · Full-Time · 10+ years exp · San Francisco
LLM
Apply
Apply
$210k – $285k per year · In office · Full-Time · 3+ years exp · San Francisco
LLM
Apply
$210k – $285k per year · In office · Full-Time · 5+ years exp · San Francisco
Python
JavaScript
TypeScript
LLM
Frontend
Tailwind CSS
Next.js
React.js
DevOps
PagerDuty
CI/CD
Kubernetes
Apply
$210k – $285k per year · In office · Full-Time · San Francisco
Python
JavaScript
TypeScript
LLM
Frontend
Tailwind CSS
Next.js
React.js
DevOps
Kubernetes
Apply