Develop with a friendly API

Develop production-ready data and ML/AI systems with human-friendly, open-source Metaflow, battle-hardened at thousands of leading organizations.

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Tooling that data, AI and ML developers love

If you know how to write Python in Jupyter notebooks, you know how to write flows using open-source Metaflow.

No need to learn complex abstractions, new paradigms, spend time with infrastructure, or navigate between six separate tools.

Take projects from prototype to production with one API

All the tools you need to develop, debug, and test locally, compute at scale, and deploy production-grade workflows and experiments behind one cohesive API.

Outerbounds takes care of the foundational needs of every data-intensive project, while allowing you to use your favorite libraries and tools for your models and business logic.

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Join leading ML organizations

Metaflow was created at Netflix to handle their large-scale ML and AI needs. Since its open-sourcing in 2019, it has been adopted by thousands of leading organizations.

Today, Metaflow powers tens of thousands of classic ML use cases, data pipelines, computer vision applications, and modern generative AI systems.

Trusted by the best

Thanks for a fantastic product ❤️
Sam Thelin
Principal AI Scientist and Technical Lead
,
SAP
Bumped into Metaflow at work, plus @HamelHusain seems excited about it, so I am excited about it 🙂 But after watching the video, wow 😲
Radek Osmulski
Senior Data Scientist
,
NVIDIA
There's a lot of good ideas made practical in Metaflow to help ML projects and developers focus on what's important.
Matthew Seal
Principal Engineer
,
Confluent
Outerbounds has proven to be transformative for us. The platform has allowed us to execute and train models without the burden of worrying about infrastructure
Soma S Dhavala, PhD
Director
,
Wadhwani AI
By unifying our data and ML pipelines we can now automatically train models when an underlying warehouse table is updated which drastically improves efficiency and collaboration.
Marc Millstone
Director of Engineering
,
Flexport
I've been extremely impressed by the Metaflow team. They have built something that's loved by everyone, so much so that they have Metaflow sad hours to encourage people say what can be improved. In my conversations with our users, I've often heard that Metaflow is one of the best software Netflix has ever built.
Nurcan Sonmez
Engineering Manager
,
Netflix
Been using metaflow for a while now, and love it. At its best, it hugely speeds up our development cycles
Harvey Pratt
Chief Executive Officer
,
The Promenade AI

With Outerbounds, the team has shaved months off the time it takes to ship a productionized machine learning model!

Ben Litvinas
VP, Data Science
,
Realtor.com
Maybe we'll be talking about this as the "Airflow for Data Science" in a few years. Not replacing Airflow, but in the sense that it's the default standard for orchestrating data science projects like Airflow does for data engineering pipelines.
James Densmore
Director of Engineering
,
HubSpot
I really appreciate the clean syntax and the seamless transitioning from dev to dev-at-scale to prod-at-scale
Fabien Pertuy
Machine Learning Principal Scientist
,
Sanofi

We’ve gone from manually tracking artifacts in S3 with naming conventions to essentially zero overhead in that area thanks to Metaflow's artifact management.

Richard Decal
Senior Machine Learning Engineer
,
The end-to-end ML management in Outerbounds—event triggers, experiment tracking, managed artifacts—was a game-changer for our small team.
Aman Ibrahim
Founder / CEO
,
Deeptrust
We are saving over 90% of the @awscloud cost in our #artificialintelligence model training phase. We've just finished the automation of our AI pipelines through the implementation of @MetaflowOSS , and the migration from http://H2O.ai
Rafael Garcia Navarro
Chief Data Scientist
,
Provenir
I love Metaflow!
Deniz Zorlu
Member of Technical Staff
,
Contextual AI
One of the things I liked about Metaflow from Netflix is their clear documentation on "Dealing with Failures": it's important to raise awareness about "retry" logic, transient/permanent failures, idempotent operations, etc.
Emre Sevinç
Co-Founder & CTO
,
TM Data ICT Solutions
Very impressive work! Easily mix multiple Python virtual environments and compute resources within a single pipeline 🤯 using #Metaflow
Samuel Sinayoko
Machine Learning Engineer (ED)
,
J.P.Morgan

The developer experience is great; we love how fast we can iterate, and the code looks clean—it’s just Python.

Santosh Jha
Software Engineer, AI Infrastructure
,
CloudKitchens

Metaflow lets us test hypotheses faster than ever—speed is critical in AI, and Metaflow delivers

Kevin McEntee
SVP Engineering
,
Equilibrium Energy
Built with the core idea of allowing ML engineers and data scientists to use Python as native way to work, this friendly approach has tremendously boosted Carsales productivity in ML
Samuel Than
Senior MLOps Engineer
,
Carsales

After adopting Metaflow, we were able to ship eight additional models in just ten months, whereas before it took many more months to launch a single model!

Peyton McCullough
Staff Software Engineer
,
Ramp
Metaflow has really been helping in speeding up our ds workflows!
Utkarsh Vashisth
Machine Learning Engineer
,
Sanofi
MetaFlow has a really fantastic API.  Most DAG systems could learn from it.
Tristan Zajonc
Co-Founder & CEO
,
Continual
Thanks for Metaflow: it's a pleasure to use!
Laure Vancau
Biomedical Data Engineer
,
Swiss Data Science Center
❤️ metaflow! The people-first API design is fantastic.
Adam Laiacano
Principal Engineer, Recsys & MLOps
,
NVIDIA
Metaflow is such an amazing tool!
Ben Brandt
Software Architect
,
Eventellect

With Outerbounds, we can scale across thousands of machines and get tasks done in hours instead of days - an absolute game changer!

Akinori Mitani
Manager, Machine Learning
,
ArteraAI

Outerbounds enables us to focus on innovation, not infrastructure. They handle the complexity, so we can concentrate on delivering real business impact.

Marc Millstone
Director of Engineering
,
Flexport

We went from a six-month deployment process to just two weeks with Metaflow - drastically improving our ability to deliver healthcare innovations!

Selvan Senthivel
Chief Technologist
,
GE Healthcare
In six weeks, a team that hadn’t used Metaflow before was able to build an ML-based model, A/B test its performance, which handily beat the old simple approach, and roll it out to production.
Thanasis Noulas
VP of Engineering
,
Trade Republic
Metaflow records the result of every step to S3. IMO the ability of metaflow to expose individual components of a complicated process is a big deal. Like, a really big deal.
David Neuzerling
Manager, Econometrics
,
Mastercard
Wow I didn't realize how much of the infrastructure needs Metaflow takes care of!
Goku Mohandas
Machine Learning Lead
,
Anyscale
The MLOps piece of tech I'm most excited about is @MetaflowOSS. Just from reading the docs I'm amazed at how a large, enterprise company like Netflix seems to have really, really grasped the developer experience in the way I'd only expect 'smaller' projects to do.
Mark Goodhead
Chief Executive Officer & Co-Founder
,
Synacti
Metaflow was recommended at work. I spent some time with it today... it's amazing. Their tagline is on-point: "Build and manage real-life data science projects with ease."
Martin Beierling-Mutz
Full Stack Developer
,
Heroic Story

Metaflow has been a fantastic tool for Carsales. Built with the core idea of allowing ML engineers and data scientists to use Python as a native way to work, this friendly approach has tremendously boosted Carsales' productivity in ML related projects.

Samuel Than
Senior MLOps Engineer
,
Carsales
As an informal estimate, our #datascience team believes they were able to test twice as many models in Q1 2021 as they did in all of 2020, with simple experiments that would have taken a week now taking half a day.
Kelly Davis
Software Engineer
,
CNN

Reproducibility and compliance were critical for us in the lending industry, and Outerbounds delivered that seamlessly!

Will High
Senior Director, Data Science
,
Tala
Very impressive level of polish in the Metaflow docs/tutorials. Pretty incredible how many details have been abstracted away by Metaflow.
Howard Wu
Analytics Consultant
,
Freelance

Metaflow turned a three-day manual process into a few hours of automated execution for our most critical models.

Jeremy Kirkwood
Staff ML Engineer
,
Zendesk

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John Doe
VP Engineering
,

With Metaflow, we were able to test twice as many models in a single quarter as we did in all of previous year!

Kelly Davis
Software Engineer
,
Warner Bros
Metaflow has helped us avoid the anti-pattern of needing to push code to find out if something works
David Tan
,
REA
Metaflow has made my daily life as an ML engineer so much easier, especially as we scale our efforts. I've never worked with a framework that works out of the box as well as metaflow.
Mike Bentley Mills
Senior Machine Learning Engineer
,
Valar Labs
Outerbounds was like Metaflow, but with a ‘plus plus’—it made everything easier.
Camelia Hssaine
Head of Data Science
,
Black Crow AI
A space I'm excited about: 'open source on top of public cloud tech.' Instead of using open source libraries (which you have to run & scale, e.g. RabbitMQ), it uses infinitely-scalable off-the-shelf cloud services (e.g. SQS). Metaflow is a good example!
Zack Kanter
Founder & CEO
,
Stedi

What stood out about Outerbounds was their responsiveness. When we asked for features, they delivered exactly what we needed and fast.

Chelsea Troy
Staff Software Engineer, ML Systems
,
Mozilla
I've been using Metaflow for years now. I can't endorse it nor the people behind it enough!
Will High
Senior Director, Data Science
,
Tala
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