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Flyte

Open-source orchestrator for data, ML and AI pipelines written in Python, running on Kubernetes.

Open sourceSelf-hostableWorkflow orchestration tools

Updated · AppBreakup editorial · Self-hosted

Visit FlyteSee 4 alternatives

Is Flyte free?

Yes, free and open source

License:
Apache-2.0

Checked on Flyte's site Nov 5, 2026

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About Flyte

Flyte is an open-source workflow orchestrator for data processing, machine learning and AI workloads, hosted under the Linux Foundation AI & Data. Pipelines are written as ordinary Python functions with typed inputs and outputs, and Flyte runs them as containerized tasks on Kubernetes, caching results, retrying failed steps and resuming without rerunning work that already succeeded. Flyte 2 adds dynamic control flow, so branches and loops are decided at runtime, which suits agent loops and other pipelines that aren't a fixed DAG. It integrates with Spark, Ray, PyTorch, Snowflake, BigQuery and experiment trackers, and can serve models and dashboards next to pipelines. SDKs exist for Python plus TypeScript, Rust and Go. The project is free under the Apache 2.0 licence and self-hosted on your own cluster; Union.ai, started by Flyte's creators, sells a managed enterprise platform. Expect a heavier setup than Prefect if you don't already run Kubernetes.

Best for: ML and data teams on Kubernetes who want typed, reproducible Python pipelines..

Pros and cons

What works

  • Free and Apache 2.0 licensed
  • Typed task inputs and outputs catch errors early
  • Caching and retries resume from the failed step
  • Managed option through Union.ai

Why people leave

  • Needs a Kubernetes cluster for production use
  • Flyte 2 changes the SDK, so Flyte 1 code needs migrating
  • Smaller community than Airflow

Flyte vs Prefect, Apache Airflow and Argo Workflows

From each app's listing and the prices verified on its own site. A dash means we haven't verified it yet.

AttributeFlytePrefectApache AirflowArgo Workflows
PricingOpen sourceOpen sourceOpen sourceOpen source
Verified price—$100/month——
Free planFree appHobby, free foreverFree appFree app
Open sourceYesYesYesYes
Self-hostableYesYesYesYes
PlatformsSelf-hostedWeb, Linux, macOS, Windows, Self-hostedLinux, Self-hosted, WebSelf-hosted

Top Flyte alternatives

See all 4
  1. 1Prefect logo
    Prefect

    Plain Python flows that run anywhere without Kubernetes, with a hosted control plane and free tier.

    68.8
  2. 2Apache Airflow logo
    Apache Airflow

    The most widely used orchestrator, with the biggest set of operators and the most hiring familiarity.

    64.8
  3. 3Argo Workflows logo
    Argo Workflows

    Container-per-step Kubernetes engine for any language, if your team prefers YAML over a Python SDK.

    61.8
  4. 4Astronomer (Astro) logo
    Astronomer (Astro)

    Managed Airflow with support, for teams that want a hosted service instead of running a cluster.

    59.4

Why people left Flyte

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

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Flyte: common questions

What is Flyte?

Flyte: Open-source orchestrator for data, ML and AI pipelines written in Python, running on Kubernetes. Best for ML and data teams on Kubernetes who want typed, reproducible Python pipelines.

Is Flyte free?

Yes. Flyte is free, open-source software that you can host yourself.

Is Flyte open source?

Yes. The source code is on GitHub at flyteorg/flyte. You can also run it on your own server.

What platforms does Flyte run on?

Flyte is available for Self-hosted.

What are the best alternatives to Flyte?

The highest-ranked Flyte alternatives right now are Prefect, Apache Airflow and Argo Workflows. See the full ranked list for pricing, platforms and verified facts.

Flyte vs Prefect: what's the difference?

Both Flyte and Prefect are free and open source. Only Prefect runs on Web, Linux, macOS and Windows.

See all 4 Flyte alternatives