# MLflow vs Prefect

| Attribute | MLflow | Prefect |
|---|---|---|
| **vioscaleAI score** | 70.4 (67% (medium)) | 70 (76% (high)) |
| activity.commits_last_30d | 100 | 98 |
| adoption.dependent_repos | 5,089 | 767 |
| adoption.github_stars | 28,260 | 23,966 |
| adoption.package_downloads_weekly | 9,993,245 | 2,710,819 |
| content.faq | `[{"answer":"A comprehensive, open-source platform that provides experiment tracking, model registry, LLM tracing, prompt management, and deployment capabilities across the complete machine learning and AI lifecycle It is indexed under MLOps & LLMOps Tools.","source":"https://mlflow.org","question":"What is MLflow?","confidence":0.6},{"answer":"MLflow is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://mlflow.org","question":"Is MLflow free to use?","confidence":0.6},{"answer":"MLflow supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://mlflow.org","question":"What platforms does MLflow support?","confidence":0.6},{"answer":"Yes. MLflow can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://mlflow.org","question":"Can MLflow be self-hosted?","confidence":0.6},{"answer":"We have confirmed 24 integrations for MLflow, including Databricks, AWS S3, Google Cloud Storage, Azure Storage, AzureML, Kubernetes, LangChain and Pydantic AI, plus 16 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://mlflow.org","question":"What does MLflow integrate with?","confidence":0.6},{"answer":"Yes. MLflow is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/mlflow/mlflow","question":"Is MLflow open source?","confidence":0.95}]` | `[{"answer":"A workflow orchestration platform where you define workflows as plain Python functions, and Prefect handles scheduling, retries, caching, and recovery automatically. You can run workflows on Prefect's managed cloud infrastructure or deploy workers to your own infrastructure. It is indexed under Data Engineering Tools.","source":"https://www.prefect.io/pricing","question":"What is Prefect?","confidence":0.6},{"answer":"Prefect is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. A commercial or hosted edition starts at $100 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.prefect.io/pricing","question":"Is Prefect free to use?","confidence":0.6},{"answer":"Prefect supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.prefect.io/pricing","question":"What platforms does Prefect support?","confidence":0.6},{"answer":"Yes. Prefect can be deployed cloud / SaaS, hybrid and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.prefect.io/pricing","question":"Can Prefect be self-hosted?","confidence":0.6},{"answer":"We have confirmed 12 integrations for Prefect, including Pydantic AI, OpenAI, AWS Secrets Manager, HashiCorp Vault, dbt, Slack, Snowflake and Redis, plus 4 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.prefect.io/pricing","question":"What does Prefect integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Prefect. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Prefect not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.prefect.io/security","question":"What security certifications does Prefect have?","confidence":0.7},{"answer":"Yes. Prefect is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/PrefectHQ/prefect","question":"Is Prefect open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | A comprehensive platform that helps teams debug, evaluate, monitor, and optimize production AI applications. Provides experiment tracking, prompt management, model deployment, systematic evaluation tools, and a unified API gateway for managing access to multiple LLM providers with cost controls. | A Python-native workflow automation platform that handles scheduling, retries, caching, and recovery for data pipelines and AI agent workflows, with both cloud-managed and self-hosted execution options. |
| features.capabilities | `{"role":"platform","evaluation":true,"open_source":true,"managed_cloud":true,"model_serving":true,"pricing_model":"free_open_source","rate_limiting":true,"self_hostable":true,"multi_provider":true,"vpc_deployment":true,"otel_compatible":true,"deployment_model":"self-hosted","llm_observability":true,"prompt_management":true,"streaming_support":true,"architecture_model":"open_source_proxy","framework_agnostic":true,"experiment_tracking":true,"budget_spend_controls":true,"guardrails_moderation":"built-in","openai_compatible_api":true,"request_cost_observability":true,"mit_or_apache_permissive_oss_license":true,"auto_fallback_routing_on_rate_limit_or_downtime":true,"organization_wide_cost_tracking_and_chargebacks":true}` | `{"role":"orchestrator","lineage":true,"paradigm":"batch","dbt_native":true,"python_first":true,"managed_cloud":true,"connector_count":"Not specified","self_hosted_oss":true,"incremental_runs":true,"distributed_executor":true}` |
| integrations.count | 9 | 6 |
| integrations.list | `[{"name":"Databricks"},{"name":"AWS S3"},{"name":"Google Cloud Storage"},{"name":"Azure Storage"},{"name":"AzureML"},{"name":"Kubernetes"},{"name":"LangChain"},{"name":"Pydantic AI"},{"name":"Anthropic Claude"},{"name":"OpenAI"},{"name":"Google Gemini"},{"name":"SAP AI Core"},{"name":"JFrog"},{"name":"Aliyun"},{"name":"PostgreSQL"},{"name":"MySQL"},{"name":"MSSQL"},{"name":"Claude Code"},{"name":"OpenAI Codex"},{"name":"Gemini"},{"name":"Anthropic"},{"name":"Ollama"},{"name":"OpenClaw"},{"name":"Qwen Code"},{"name":"LiteLLM"},{"name":"Amazon S3"},{"name":"OpenTelemetry/OTLP"},{"name":"OpenAI-compatible endpoints"},{"name":"OpenTelemetry","native":true,"category":"observability"},{"name":"Azure ML","native":true,"category":"platform"},{"name":"AWS SageMaker","native":true,"category":"platform"},{"name":"Docker","native":true,"category":"platform"}]` | `[{"name":"Pydantic AI"},{"name":"OpenAI"},{"name":"AWS Secrets Manager"},{"name":"HashiCorp Vault"},{"name":"dbt"},{"name":"Slack","native":true,"category":"chat"},{"name":"Snowflake","native":true},{"name":"Redis","native":true},{"name":"Kubernetes","native":true},{"name":"Amazon ECS","native":true},{"name":"Docker","native":true},{"name":"Google Cloud Run","native":true},{"name":"GitHub","native":true},{"name":"AWS","native":true}]` |
| language.primary | Python | Python |
| license.spdx | Apache-2.0 | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://mlflow.org","retrievedAt":"2026-10-05T10:15:00.395Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Hobby","features":["Workflow scheduling","Up to 5 deployments","500 minutes of Prefect Serverless","Workflow observability","Logging & alerting","7 days run retention"],"minSeats":2,"description":"Deploy workflows instantly. Scale when ready.","contactSales":false},{"free":false,"name":"Starter","features":["All Hobby features","Up to 20 deployments","75 hours of Prefect Serverless","Bring your own compute","Webhooks","1,250 API requests/min"],"minSeats":3,"components":[{"kind":"fixed","amount":100,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Team","features":["All Starter features","Up to 100 deployments","225 hours of Prefect Serverless","Service accounts","24 hour audit log"],"minSeats":4,"contactSales":false},{"free":false,"name":"Enterprise","features":["All Team features","SSO (SAML/OIDC)","RBAC + ACLs","Multiple workspaces","Directory Sync (SCIM)","IP allowlisting & PrivateLink","Unlimited deployments"],"minSeats":5,"contactSales":true}],"summary":"Free Hobby tier. Starter from $100/month. Team per-user monthly pricing. Enterprise custom quote.","currency":"USD","freeTier":true,"sourceUrl":"https://www.prefect.io/pricing","retrievedAt":"2026-10-05T11:05:17.530Z","startingPrice":{"amount":100,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | high |
| pricing.starting_price | - | `{"amount":100,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 9 | 1 |
| release.history | `[{"url":"https://github.com/mlflow/mlflow/releases/tag/model-catalog/latest","date":"2026-04-06T05:49:14Z","type":"stable","version":"model-catalog/latest"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v2.11.5","date":"2026-09-23T06:17:56Z","type":"stable","version":"v2.11.5"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.16.1","date":"2026-09-17T02:40:08Z","type":"stable","version":"v3.16.1"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.16.0","date":"2026-09-04T08:30:54Z","type":"stable","version":"v3.16.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.15.2","date":"2026-08-26T08:34:31Z","type":"stable","version":"v3.15.2"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.15.1","date":"2026-08-03T11:09:58Z","type":"stable","version":"v3.15.1"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.15.0","date":"2026-07-31T08:59:13Z","type":"stable","version":"v3.15.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.14.0","date":"2026-06-17T08:50:33Z","type":"stable","version":"v3.14.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.13.0","date":"2026-06-01T23:24:24Z","type":"stable","version":"v3.13.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.13.0rc0","date":"2026-05-22T07:41:13Z","type":"prerelease","version":"v3.13.0rc0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/ts/v0.2.0","date":"2026-05-15T04:09:03Z","type":"stable","version":"ts/v0.2.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.12.0","date":"2026-05-05T23:48:58Z","type":"stable","version":"v3.12.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.12.0rc0","date":"2026-04-28T23:25:56Z","type":"prerelease","version":"v3.12.0rc0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/ts/v0.2.0-rc.1","date":"2026-04-13T09:42:04Z","type":"prerelease","version":"ts/v0.2.0-rc.1"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.11.1","date":"2026-04-08T05:29:25Z","type":"stable","version":"v3.11.1"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.11.0rc1","date":"2026-04-01T09:14:13Z","type":"prerelease","version":"v3.11.0rc1"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.11.0rc0","date":"2026-03-16T14:02:42Z","type":"prerelease","version":"v3.11.0rc0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.10.1","date":"2026-03-05T14:47:14Z","type":"stable","version":"v3.10.1"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.10.0","date":"2026-02-20T16:05:05Z","type":"stable","version":"v3.10.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.10.0rc0","date":"2026-02-12T05:01:00Z","type":"prerelease","version":"v3.10.0rc0"}]` | `[{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.8.dev3","date":"2026-10-02T08:19:49Z","type":"prerelease","version":"3.8.8.dev3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.8.dev2","date":"2026-10-01T08:21:27Z","type":"prerelease","version":"3.8.8.dev2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.8.dev1","date":"2026-09-30T08:20:43Z","type":"prerelease","version":"3.8.8.dev1"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7","date":"2026-09-26T23:41:44Z","type":"stable","version":"3.8.7"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev7","date":"2026-09-26T08:18:02Z","type":"prerelease","version":"3.8.7.dev7"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev6","date":"2026-09-23T08:19:42Z","type":"prerelease","version":"3.8.7.dev6"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev5","date":"2026-09-22T08:19:45Z","type":"prerelease","version":"3.8.7.dev5"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev4","date":"2026-09-19T08:16:49Z","type":"prerelease","version":"3.8.7.dev4"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev3","date":"2026-09-18T08:18:58Z","type":"prerelease","version":"3.8.7.dev3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev2","date":"2026-09-16T08:19:54Z","type":"prerelease","version":"3.8.7.dev2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.7.dev1","date":"2026-09-15T08:20:02Z","type":"prerelease","version":"3.8.7.dev1"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.6","date":"2026-09-14T14:18:53Z","type":"stable","version":"3.8.6"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.6.dev5","date":"2026-09-12T08:16:39Z","type":"prerelease","version":"3.8.6.dev5"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.6.dev4","date":"2026-09-11T08:19:03Z","type":"prerelease","version":"3.8.6.dev4"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.6.dev3","date":"2026-09-10T08:19:23Z","type":"prerelease","version":"3.8.6.dev3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.6.dev2","date":"2026-09-09T08:19:24Z","type":"prerelease","version":"3.8.6.dev2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.6.dev1","date":"2026-09-05T08:16:23Z","type":"prerelease","version":"3.8.6.dev1"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.5","date":"2026-09-03T21:25:46Z","type":"stable","version":"3.8.5"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.5.dev6","date":"2026-09-03T08:19:56Z","type":"prerelease","version":"3.8.5.dev6"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/2.20.26","date":"2026-09-02T18:17:41Z","type":"stable","version":"2.20.26"}]` |
| reliability.sla_pct | - | 99.9 |
| reliability.status_page | - | yes |
| security.certifications | - | `[{"name":"SOC 2 Type II","status":"active"}]` |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | 5.4 | 6.9 |
| security.soc2 | - | yes |
| security.trust_center | https://mlflow.org/articles/tags/ai-compliance-policies/ | https://www.prefect.io/security |
| security.vulnerabilities | `{"count":82,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=mlflow&per_page=100","last_12m":29,"max_severity":"CRITICAL"}` | `{"count":8,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=prefect&per_page=100","last_12m":6,"max_severity":"HIGH"}` |

*Source: vioscaleAI. Generated 2026-10-20T18:21:32.495Z. "-" = undocumented, not absent.*