Comparisons anchored on Prefect, the Apache-2.0 Python workflow orchestrator with a self-hosted server and the managed Prefect Cloud, against other self-hosted orchestrators.
Python functions turned into flows against declarative YAML workflows built from plugins. Compares authoring model and who can maintain flows, event-driven triggers, the self-hosted server (Prefect server on PostgreSQL with Redis for multi-server setups against Kestra's single-server default), and the RBAC, SSO and audit features each reserves for Prefect Cloud or Kestra Enterprise.
Python-first orchestration against a polyglot platform for scripts, flows and internal apps. Compares languages, how each runs work (Prefect work pools and workers against Windmill workers on a PostgreSQL queue), what the free self-hosted editions include, and the cost of SSO and audit logs in Prefect Cloud against Windmill Enterprise Edition.
Running the open-source Prefect server or paying for Prefect Cloud: which features are Cloud-only (SSO, SCIM, RBAC, audit logs), what each plan includes in users, deployments and run retention, why air-gapped sites must self-host, and the PostgreSQL, Redis and upgrade work a self-hosted server needs.
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