Flyte vs Workflow Engine
Flyte
flyte.orgWorkflow Engine
workflowengine.ioSide by side
| Figure | Flyte | Workflow Engine |
|---|---|---|
| Price from | $950/mo | $666.67/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 7 |
| Spec score · Workflow Orchestration Software | 9.0 (#3) | 7.8 (#25) |
| Deployment | Flyte 2 can run locally with a devbox or on a user's cluster; the site provides `pip install flyte` and `flyte start devbox` setup commands. | Workflow Engine NEO adds an HTTP API and multitenancy, while Workflow Server is a standalone Docker service called over HTTP. |
| Integrations | The Flyte site lists integrations including Apache Spark, Ray, PyTorch Elastic, BigQuery, Snowflake, Weights & Biases, OpenAI Agents SDK, LangGraph, CrewAI, Pydantic AI, MLflow, Dask, and Databricks. | The maker lists plugins including Approval, Loops, File, Active Directory and Entra ID, Real-Time Tracking, and support for custom plugins. |
| Security | Union.ai states that its data plane runs inside the customer's cloud and that workflow inputs, outputs, logs, code, and reports do not pass through its control plane. | The core engine has no user store and delegates workflow command authorization to an application-provided rule provider; authentication remains the host application's responsibility. |
| Support | The Team plan lists one business day Sev 1 support, while Enterprise lists custom white-glove support. | The maker directs existing customers to technical support under their support plan and offers public GitHub Discussions for questions. |
Plans
Flyte
- Flyte OSSFree
- Flyte OSSFree
- Team$950 a month
- Union.ai Team (enterprise Flyte platform)$950 a month
- EnterprisePriced on request
Workflow Engine
- Workflow Engine FreeFree
- Workflow Engine Team$2,000, paid once
- Workflow Engine Complete$5,000, paid once
- Workflow Engine NEO Subscription$8,000 a year
- Workflow Engine NEO Business$10,000, paid once
- Workflow Engine NEO SaaS$15,000, paid once
- Workflow Engine NEO EnterprisePriced on request
In their own words
Flyte
Flyte 2 is a durable runtime for AI workloads involving training, serving and agents. Users write workflows as plain Python async functions and use a TaskEnvironment to declare images, resources, secrets and retry policies. Flyte resumes from failed tasks and can recover from out-of-memory kills, preempted nodes and disappearing GPUs. Branches, loops and runtime decisions support dynamic workflows and agents. Native serving integrations include Streamlit, FastAPI, vLLM, SGLang and Ollama, with replicas able to scale to zero when idle. Listed integrations also cover Apache Spark, Ray, PyTorch Elastic, BigQuery, Snowflake, Weights & Biases, OpenAI Agents SDK, LangGraph, CrewAI, Pydantic AI, MLflow, Dask and Databricks. It runs locally with a devbox or on a customer cluster. Union.ai says customer-cloud data planes keep workflow inputs, outputs, logs, code and reports outside its control plane. Flyte is available as free Apache 2.0 open-source software.
Workflow Engine
Workflow Engine is an embeddable.NET library for managing business processes while saving their state in your database. It supports timers, audit history, and process versioning, and includes an HTML5 visual designer that can be embedded in an application. Designer packages are available for React, Angular, and vanilla JavaScript, with a documented Blazor integration. The core package supports.NET Framework 4.6.2 through.NET 10 and is deployed on-premises or in a customer's cloud. Supported databases include SQL Server, Azure SQL, PostgreSQL, MongoDB, Azure Cosmos DB, MySQL, Oracle, and SQLite. It imports BPMN 2.0 diagrams as native schemes, but does not export diagrams back to BPMN. Workflow Engine Free is licensed for personal, non-commercial use and costs nothing; it is limited to 10 schemas and 4 execution threads. Paid options include one-time licenses and subscriptions. NEO adds an HTTP API and multitenancy, while Workflow Server is a standalone Docker service called over HTTP. The core engine has no user store; authentication is the host application's responsibility.