AI Generates Code.
Quint Generates Confidence.
Software teams are shipping faster than ever. But speed without evidence isn't progress. Quint is the executable spec that turns your system's intended behavior into checkable, verifiable evidence.
Speed is scaling.
Trust isn't.
90% of developers use AI to write code. Only 24% trust it a lot. The process that used to generate confidence, writing specs, tests, and reviews, is gone. Quint brings it back, without the overhead.
How Quint Works:
The Executable Spec
One Quint spec connects your intent to your code, your tests, and your runtime. A confidence infrastructure from one holistic artifact.
One Source of Truth. Continued Confidence.
From design to production, Quint Studio makes system behavior the backbone of your software process.
Quint Studio
Capture your intent as executable, high-level system descriptions with verifiable properties. Validate behavior during design, carry it into testing, and surface mismatches in production.
Quint Language
The Quint language and core tooling are open source. A powerful foundation for writing executable specs, modeling and verifying behaviors, and building Quint into your own tooling.
We don't just build Quint. We use it.
We offer Quint integration services, using Quint to audit the behavioral correctness of your critical system from design through implementation.
Built for Teams Where Correctness Matters
For the systems you can't afford to get wrong.
AI Infrastructure
New hardware or platform that is hard to test? Quint validates your design.
Blockchain / Fintech
Does your protocol store a lot of value? Make your transactions verified transitions.
Cloud Infrastructure
Complex distributed systems where you don’t know what and how to test? Quint checks the worst interleavings.
Know what an edge case is?
Quint is probably for you too.
Trusted in
Production
Quint is a working ecosystem with years of research and real-world use behind it.
Quint is an excellent lightweight approach to formal verification, particularly well suited for systems that are still evolving. It allowed us to reach a high degree of confidence in the correctness and security properties of our systems — and helped surface a surprising number of issues that would otherwise have been difficult to detect.
Denis Firsov,
Input Output Group
Quint’s typed, executable spec language, with clean syntax and TLA+-style semantics, makes modeling complex state machines and invariants like lock-free ring buffer safety genuinely straightforward. The quint-connect crate generates ITF traces I replay against real Rust code, combined with proptest fuzzing to verify that atomic usage and lock-free primitives match the spec under all interleavings.
Debasish Ghosh,
Conviva
Quint has been an invaluable tool for my AI agents to find implementation bugs or specification flaws in distributed systems protocols and implementations. My belief is that a formal language lets the models see the big picture and reason beyond the limits of their current context window. Right now, multiple file and whole system reasoning is still a pain point for models and working with formal tools like Quint is a powerful strategy for producing reliably software.
Zaki Manian,
iqlusion
As Seen On
Meet the Software Engineers Who Aren't Letting AI Push Them Around
LEADDEV • Gabriela Moreira
Thinking Hard is not Enough
COSMOVERSE • Ivan Gavran
![Introdução à Linguagem Quint [Portuguese]](/talks/se4fp.png)
Introdução à Linguagem Quint [Portuguese]
ESQUENTA SE4FP • Gabriela Moreira
Live Coding with Quint
BLUE YARD • Gabriela Moreira
Quint Launch Party
QUINT LAUNCH • Gabriela Moreira
Quint: A Modern and Executable Specification Language
MACROCOSM • Gabriela Moreira & Diego Torres
Modelling and Analysis of Starknet Decentralization Protocols in Quint
STARKNETCC • Josef Widder
Ready to ship with confidence?
Join the engineering teams using Quint to ship AI-generated code they can actually stand behind.
