--- title: "covalent vs SpiffWorkflow" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/agnostiqhq-covalent-vs-sartography-spiffworkflow" tools: ["agnostiqhq-covalent", "sartography-spiffworkflow"] --- # covalent vs SpiffWorkflow *GraphCanon updated Sep 20, 2026* ## Verdict Pick covalent if covalent is designed for orchestrating workflows across multiple computing environments including machine learning, high-performance computing, and quantum computing using Python; pick SpiffWorkflow if spiffWorkflow is an open-source Python workflow engine that adheres to BPMN specifications. [covalent](https://www.covalent.xyz) reports 868 GitHub stars, 113 forks, and 103 open issues, last pushed Aug 31, 2026. [SpiffWorkflow](https://github.com/sartography/SpiffWorkflow) has 1.9k stars, 343 forks, and 8 open issues, last pushed Sep 2, 2026. Figures are from public GitHub metadata via [covalent's repository](https://github.com/AgnostiqHQ/covalent) and [SpiffWorkflow's repository](https://github.com/sartography/SpiffWorkflow). | | [covalent](/tools/agnostiqhq-covalent.md) | [SpiffWorkflow](/tools/sartography-spiffworkflow.md) | | --- | --- | --- | | Tagline | Pythonic tool for orchestrating workflows in diverse compute environments | A powerful workflow engine implemented in pure Python | | Stars | 868 | 1,917 | | Forks | 113 | 343 | | Open issues | 103 | 8 | | Language | Python | Python | | Adopt for | Covalent is designed for orchestrating workflows across multiple computing environments including machine learning, high-performance computing, and quantum computing using Python. | SpiffWorkflow is an open-source Python workflow engine that adheres to BPMN specifications. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | LGPL-3.0 | | Categories | Developer Tools | Developer Tools | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [covalent](/tools/agnostiqhq-covalent.md) | [SpiffWorkflow](/tools/sartography-spiffworkflow.md) | | --- | --- | --- | | Days since push | 19d | 14d | | Open issues (now) | 103 | 8 | | Stars delta | +1 (30d) | +7 (30d) | | Open issues delta | +3 (30d) | 0 (30d) | | Full report | [trust report](/tools/agnostiqhq-covalent/trust.md) | [trust report](/tools/sartography-spiffworkflow/trust.md) | ## Shared compatibility - **Python**: [covalent](/tools/agnostiqhq-covalent.md) - Python runtime; [SpiffWorkflow](/tools/sartography-spiffworkflow.md) - Python runtime ## Decision facts: covalent - **Adopt for:** Covalent is designed for orchestrating workflows across multiple computing environments including machine learning, high-performance computing, and quantum computing using Python. ## Decision facts: SpiffWorkflow - **Adopt for:** SpiffWorkflow is an open-source Python workflow engine that adheres to BPMN specifications. ## Choose when ### Choose covalent if… - License: covalent is Apache-2.0, SpiffWorkflow is LGPL-3.0. - Tags unique to covalent: covalent, data-pipeline, machine-learning, quantum-computing. - When developing machine-learning pipelines that must run in various heterogeneous compute environments. ### Choose SpiffWorkflow if… - License: SpiffWorkflow is LGPL-3.0, covalent is Apache-2.0. - Tags unique to SpiffWorkflow: bpmn, bpmn-engine, python, workflow. - You need a pure Python solution without external dependencies for implementing BPMN workflows. ## When NOT to use covalent - In scenarios where the primary programming language is not Python, as Covalent heavily relies on its features and ecosystem for workflow development. - If your workflow orchestration needs are limited to a single compute environment without any requirement for cross-platform execution. ## When NOT to use SpiffWorkflow - The project demands real-time performance or low-latency requirements as SpiffWorkflow, being a Python library, might not meet those stringent criteria. - You require integration with non-BPMN workflow specifications exclusively. ## Common questions ### What is the difference between covalent and SpiffWorkflow? covalent: Pythonic tool for orchestrating workflows in diverse compute environments. SpiffWorkflow: A powerful workflow engine implemented in pure Python. See the comparison table for live GitHub stats and shared categories. ### When should I choose covalent over SpiffWorkflow? Choose covalent over SpiffWorkflow when License: covalent is Apache-2.0, SpiffWorkflow is LGPL-3.0; Tags unique to covalent: covalent, data-pipeline, machine-learning, quantum-computing; When developing machine-learning pipelines that must run in various heterogeneous compute environments. ### When should I choose SpiffWorkflow over covalent? Choose SpiffWorkflow over covalent when License: SpiffWorkflow is LGPL-3.0, covalent is Apache-2.0; Tags unique to SpiffWorkflow: bpmn, bpmn-engine, python, workflow; You need a pure Python solution without external dependencies for implementing BPMN workflows. ### When should I avoid covalent? In scenarios where the primary programming language is not Python, as Covalent heavily relies on its features and ecosystem for workflow development. If your workflow orchestration needs are limited to a single compute environment without any requirement for cross-platform execution. ### When should I avoid SpiffWorkflow? The project demands real-time performance or low-latency requirements as SpiffWorkflow, being a Python library, might not meet those stringent criteria. You require integration with non-BPMN workflow specifications exclusively. ### Is covalent or SpiffWorkflow more popular on GitHub? SpiffWorkflow has more GitHub stars (1,917 vs 868). Stars measure visibility, not whether either tool fits your constraints. ### Are covalent and SpiffWorkflow open source? Yes - both are open-source projects on GitHub (covalent: Apache-2.0, SpiffWorkflow: LGPL-3.0). ### Where can I find alternatives to covalent or SpiffWorkflow? GraphCanon lists graph-backed alternatives at [covalent alternatives](/tools/agnostiqhq-covalent/alternatives) and [SpiffWorkflow alternatives](/tools/sartography-spiffworkflow/alternatives) ([covalent markdown twin](/tools/agnostiqhq-covalent/alternatives.md), [SpiffWorkflow markdown twin](/tools/sartography-spiffworkflow/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/agnostiqhq-covalent-vs-sartography-spiffworkflow.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, covalent or SpiffWorkflow? covalent: Active. SpiffWorkflow: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for covalent and SpiffWorkflow? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [covalent trust report](/tools/agnostiqhq-covalent/trust); [SpiffWorkflow trust report](/tools/sartography-spiffworkflow/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=agnostiqhq-covalent`](/api/graphcanon/graph?tool=agnostiqhq-covalent) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_