Prefect

Modern workflow orchestration for data and ML engineers.

Get the code: in Slack:

[Prefect @PrefectIO]

Millions of people wake up and trust their @WHOOP recovery score. That only works if the data behind it is right, every time. WHOOP runs thousands of jobs a day on terabytes of data. Prefect keeps it reliable.

Carlos Peralta and Peter Belanger (WHOOP) played a round with Thomas Egbert and Zach Angell (Prefect) to talk about what "data-driven" really takes and why the best tools work quietly in the background.

[Jeremiah Lowin @jlowin]

This Saturday I'm giving a keynote at @PyData London!

I'm excited to spend time with such an amazing group of data practitioners.

Also, it's been too long since I was in London, so I'm hanging around the following week to see our @PrefectIO community and customers too.

[Pydantic @pydantic]

Hack Monty 2 is live!

$10,000 bounty, sponsored by us, @PrefectIO, and @HuggingFace.

Same target: escape the Monty sandbox and read the secret.

Have fun. Break it harder.
https://t.co/pgmWzgS8Hs

[Prefect @PrefectIO]

https://t.co/gLOLd4DYNo

[Prefect @PrefectIO]

Operating a massive media engine spanning from global podcasts to college affiliate networks is no easy task.

We caught up with Senior Data Engineer, Jason Damiani, from @barstoolsports to talk about how they migrated their data orchestration to Prefect Cloud.

Some of their results in the 🧵

[Prefect @PrefectIO]

- 4x scale to easily handle 3 to 4 times the original number of data flows.

- 30-minute latency giving leadership near real-time views during events like Black Friday.

- Automated retries with built-in alerting that eliminated daily troubleshooting.

Full story below 👇

[Prefect @PrefectIO]

Founder and CEO of Prefect. Creator of FastMCP (25k stars on GitHub). Father of four. Jeremiah Lowin @jlowin also ships more code than most full time engineers.

Radhika Gulati @radhigulati took him on a walk to ask HOW?

Jeremiah talks about his five Claudes running in parallel.
The shorthand he built so the output is predictable.
A system for keeping track of all of it.

Episode 4 of our walk-and-talks with the team building Prefect.

[Prefect @PrefectIO]

New headshots from the Prefect team, dropping today. Scientists call it the Pre-effect: a glow-up that kicks in once you join. Cause: immediate exposure to workflow automation. Effect? Undeniable.

[PyData @PyData]

Meet the keynote speakers of PyData London 2026!

Jeremiah Lowin, Founder and CEO of Prefect
Jeremiah Lowin is the founder and CEO of Prefect and the author of FastMCP. Prefect develops automation tools used across the data and AI ecosystem, and FastMCP has become the standard framework for working with the Model Context Protocol. Before founding Prefect, he spent over a decade leading risk and data initiatives at major investment firms and was a founding member of the Apache Airflow PMC. He lives in Washington, DC.

- - -

PyData London 2026:
Convene Sancroft, St. Paul's
Tutorials: Friday, June 5-7
Talks: Saturday and Sunday, June 6-7
Keynote Speakers all 3 days
Tickets: https://t.co/Dd6lhJQkIY

[Prefect @PrefectIO]

Learn more: https://t.co/SIfkeESBvP
Read the joint announcement: https://t.co/wSqYgnQ4JO
Marketplace listing: https://t.co/kzpngWcbEz

[Prefect @PrefectIO]

We’re excited to share that Prefect is officially live on the @Snowflake Marketplace! ❄️

Details about the listing below 👇

[Prefect @PrefectIO]

Teams like @hnicorporation are using Prefect and Snowflake together to orchestrate critical data pipelines for analytics and AI.

With Prefect and Snowflake, teams can:
- Orchestrate data, ML, APIs, and external services in a single workflow
- Connect AI agents to Snowflake and the rest of the business with FastMCP and Horizon
- Adopt Prefect directly through Snowflake Marketplace using existing Snowflake commitments

[Prefect @PrefectIO]

Only @ Prefect:

Docs & Swag: https://t.co/ZXF5hR6MNQ
Blog: https://t.co/pj9xbOOhi7
Launch video: https://t.co/lpqRrC4BYm
Install the CLI: https://t.co/ZMCygWnLVN

[Prefect @PrefectIO]

NOW That's What I Call Orchestration! 💿

Introducing the Prefect Launch Collection. 11 new Prefect features, all available now. Some of the hits include:

- Managed Automations (no more zombie runs)
- Config Plugins (pip-install your environment)
- Workspace Personalization (only see what's yours)
- Infrastructure Debugging (see OOMs in the UI)
- Assets Explorer (look up an asset and its history)
- ...and 6 more

[Prefect @PrefectIO]

BUT WAIT, THERE'S MORE! Claim a free hat while supplies last. Limited edition run, going fast. Visit the launch site below to claim yours. ☟

𝘚𝘦𝘭𝘦𝘤𝘵 𝘧𝘦𝘢𝘵𝘶𝘳𝘦𝘴 𝘢𝘷𝘢𝘪𝘭𝘢𝘣𝘭𝘦 𝘪𝘯 𝘰𝘱𝘦𝘯 𝘴𝘰𝘶𝘳𝘤𝘦. 𝘔𝘢𝘺 𝘤𝘢𝘶𝘴𝘦 𝘴𝘶𝘥𝘥𝘦𝘯 𝘶𝘳𝘨𝘦𝘴 𝘵𝘰 𝘥𝘦𝘭𝘦𝘵𝘦 𝘺𝘰𝘶𝘳 𝘰𝘭𝘥 𝘰𝘳𝘤𝘩𝘦𝘴𝘵𝘳𝘢𝘵𝘰𝘳. 𝘚𝘰𝘮𝘦 𝘧𝘦𝘢𝘵𝘶𝘳𝘦𝘴 𝘪𝘯 𝘰𝘱𝘦𝘯 𝘣𝘦𝘵𝘢. 𝘓𝘢𝘴𝘵 𝘥𝘢𝘺 𝘰𝘧 𝘭𝘢𝘶𝘯𝘤𝘩 𝘸𝘦𝘦𝘬.

[Pamela Fox @pamelafox]

Just delivered "Build your first MCP server in Python" tutorial at #PyConUS!
Packed house, great Qs.

Slides: https://t.co/wVsvm2pLsj
Code: https://t.co/oh5OGqAAkT

[Prefect @PrefectIO]

Only @ Prefect

Launch demo: https://t.co/lvnSyrmEQG
Docs: https://t.co/uOzkdS3kSZ
Blog: https://t.co/ecHxUIw0gP
Launch video: https://t.co/XmA9OCWIPS
Launch Schedule: https://t.co/ZXF5hR6MNQ
Install the CLI: https://t.co/ZMCygWnLVN

[Prefect @PrefectIO]

We are taking the wheel... of your dbt DAG.

In the demo below, see how the new Prefect dbt Orchestrator reads your project and runs it model-by-model.

Watch how to:

- plan the DAG into parallel waves for faster execution
- retry individual nodes so one failure doesn't stop runs
- use persistent caching to skip work and save compute

Demo and resources in the 🧵

[Prefect @PrefectIO]

Day two of three. See the full launch week: https://t.co/ZXF5hR6MNQ

[Prefect @PrefectIO]

Open beta today.

Docs: https://t.co/uOzkdS3kSZ
Blog: https://t.co/ecHxUIw0gP
Launch Schedule: https://t.co/ZXF5hR6MNQ
Install the CLI: https://t.co/ZMCygWnLVN
Launch video: https://t.co/XmA9OCWIPS
Launch demo: https://t.co/lvnSyrmEQG

[Prefect @PrefectIO]

Friends don't let friends re-run unchanged SQL.

It’s Day 2 of launch week and today we're launching the Prefect dbt Orchestrator.

Every model, seed, test, and snapshot runs as a Prefect task. Caching, per-node retries, and the same alerting your other Prefect work uses.

[Prefect @PrefectIO]

4. dbt inherits Prefect’s orchestration primitives

The same caching, retries, alerting, and visibility you use for Prefect flows now apply to dbt workloads.