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Automation Integration · head to head

Orkes vs Prefect

Orkes logo

Orkes

Automation Integration

Commercial Conductor, now the maintainer of the workflow engine Netflix archived

From
Free
Rated
-
Full reviewWebsite
Prefect logo

Prefect

Automation Integration

Python-first workflow orchestration that heals itself

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Orkes netflix archived the Conductor repository in December 2023 and Orkes took over maintenance, so the large-company backing that justified many original adoptions no longer exists.; Prefect limited to Python-based workflows; other languages require API calls
  • They diverge on capability: Orkes covers JSON workflow definitions, Prefect covers Python function decorators.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Orkes and Prefect actually diverge.

Attributes where Orkes and Prefect differ
AttributeOrkesPrefect
Pricing modelquoteFreemium with per-user and usage-based tiers
PlatformsLinux, Docker, Kubernetes, CloudCloud, Self-hosted, VPC

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Automation Integration).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Orkes

  • JSON workflow definitions
  • Polyglot workers
  • Visual workflow builder
  • AI and LLM tasks
  • Human tasks
  • Event handlers
  • RBAC and secrets
  • Hosted or self-hosted

Only in Prefect

  • Python function decorators
  • Automatic resilience
  • Flexible deployment
  • Observable execution
  • Multiple scheduling
  • Webhooks
  • Open-source core

What people use each for

The jobs each tool is most often brought in to do.

Orkes

  • A microservices estate that needs orchestration across services written in different languages without a shared SDKnot Prefect
  • A team already running Conductor OSS that wants a supported distribution now that Netflix has stopped maintaining itnot Prefect
  • An AI platform composing agent steps, model calls and vector lookups as versioned workflow definitionsnot Prefect
  • A business process needing human approval steps interleaved with automated service callsnot Prefect

Prefect

  • Orchestrating data pipeline workflows in Pythonnot Orkes
  • Managing ML model training and inference jobsnot Orkes
  • Building ETL and event-driven automationnot Orkes
  • Monitoring and alerting on workflow healthnot Orkes

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Orkes

  • Netflix archived the Conductor repository in December 2023 and Orkes took over maintenance, so the large-company backing that justified many original adoptions no longer exists.
  • Enterprise pricing is entirely unpublished, and the only free option is explicitly a prototyping sandbox whose limits can change at any time, so there is no supported low-cost entry point.
  • Self-hosting Conductor OSS in production means operating the engine plus its persistence and indexing dependencies, typically Postgres or Cassandra with Elasticsearch, which is a substantial platform commitment.
  • JSON workflow definitions are language agnostic but verbose and awkward to test, and teams accustomed to defining workflows in code find them a step backwards in developer experience.
  • Orkes is a small company whose commercial future is tied to a single open source project it also maintains, which concentrates both vendor and project risk in the same place.

Prefect

  • Limited to Python-based workflows; other languages require API calls
  • Hobby free tier severely limited for production use
  • Team plan billing per user scales quickly with team size
  • Less visual workflow builder compared to some competitors
  • Smaller ecosystem of pre-built connectors than alternatives

Pricing, plan by plan

Orkes

Free
  • Developer EditionFree
    • All Conductor OSS features plus enterprise capabilities
    • Sandbox for prototyping only
    • Rate limits and resources may change without notice
  • Enterprise$undefined/year
    • Availability SLA up to 99.99%
    • Orkes-hosted or customer-hosted deployment
    • Dedicated technical account manager

Prefect

Free
  • HobbyFree
    • 2 users and 5 deployments
    • 500 minutes serverless monthly
    • 7-day run retention
  • Starter$100/month
    • 3 users and 20 deployments
    • 75 hours serverless compute
    • Bring-your-own infrastructure
  • Team$100/user/month
    • 4-8 users per plan tier
    • 100 deployments
    • 225 hours serverless monthly
  • Enterprise$null/custom
    • SSO and SAML authentication
    • Role-based access control
    • Multiple workspaces

Which should you pick?

Choose Orkes if

  • You need json workflow definitions.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Cloud.
  • You also want polyglot workers.
Orkes review

Choose Prefect if

  • You need python function decorators.
  • You want to start without paying.
  • You work on Cloud, Self-hosted, VPC.
  • You also want automatic resilience.
Prefect review

Questions people ask

Is Orkes or Prefect better?
Neither clearly leads. Orkes starts at Free and Prefect at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Orkes or Prefect?
Orkes starts at Free and Prefect at Free.
Does Orkes or Prefect run on more platforms?
Orkes runs on Linux, Docker, Kubernetes, Cloud. Prefect runs on Cloud, Self-hosted, VPC.
Can I use Orkes for free?
Both have a free tier, so you can try either at no cost before committing.
What is Orkes best used for?
Orkes is most often used for a microservices estate that needs orchestration across services written in different languages without a shared sdk, a team already running conductor oss that wants a supported distribution now that netflix has stopped maintaining it, an ai platform composing agent steps, model calls and vector lookups as versioned workflow definitions, a business process needing human approval steps interleaved with automated service calls. Of those, a microservices estate that needs orchestration across services written in different languages without a shared sdk and a team already running conductor oss that wants a supported distribution now that netflix has stopped maintaining it are not what Prefect is typically brought in for.
What can Orkes do that Prefect cannot?
Orkes covers JSON workflow definitions, Polyglot workers, Visual workflow builder, AI and LLM tasks. Prefect covers Python function decorators, Automatic resilience, Flexible deployment, Observable execution.

Answered from the vendors’ own pages

Orkes: Does Netflix still maintain Conductor?

No. Netflix archived its repository in December 2023. The open source project continues at conductor-oss under Apache 2.0, maintained by Orkes.

Prefect: What is included in the Hobby free plan?

Hobby includes 2 users, 5 deployments, 500 minutes of serverless compute monthly, and 7-day run retention.

Source
Orkes: Is there a free production tier?

No. The Developer Edition is a sandbox that the vendor states is unsuitable for production. Self-hosting Conductor OSS is the free production route.

Prefect: What is the difference between Starter and Team plans?

Starter is $100/month for 3 users and 20 deployments. Team is $100 per user per month for 4-8 users and 100 deployments.

Source
Orkes: What does Enterprise cost?

Nothing is published; it is quoted by deployment and support requirements.

Prefect: Can I deploy Prefect in my own infrastructure?

Yes, Starter and higher plans support bring-your-own-compute infrastructure and VPC deployments.

Source
Orkes: How does it compare with Temporal?

Conductor uses declarative JSON workflow definitions and external workers; Temporal defines workflows in code. Temporal has the larger community.

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