# Metaflow vs Weights & Biases

**Leader by Vioscale score:** Weights & Biases

| Attribute | Metaflow | Weights & Biases |
|---|---|---|
| **Vioscale score** | 58.2 (66% (medium)) | 67.2 (38% (low)) |
| activity.commits_last_30d | 18 | 100 |
| adoption.dependent_repos | 106 | 9,299 |
| adoption.github_stars | 10,244 | 11,240 |
| adoption.package_downloads_weekly | 193,305 | - |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | An open-source tool that enables data scientists and engineers to move from local experimentation to scalable production systems, with features for tracking experiments, versioning data and models, and orchestrating compute across multiple cloud platforms or self-hosted infrastructure. | An integrated platform for developing AI applications, from training and fine-tuning models to deploying agents in production, with comprehensive experiment tracking, model management, and LLM application monitoring. |
| features.capabilities | `{"role":"framework","managed_cloud":true,"self_hostable":true,"multi_provider":true,"vpc_deployment":true,"otel_compatible":true,"framework_agnostic":true,"experiment_tracking":true}` | `{"role":"platform","evaluation":true,"managed_cloud":true,"model_serving":true,"self_hostable":true,"vpc_deployment":true,"llm_observability":true,"prompt_management":true,"framework_agnostic":true,"experiment_tracking":true}` |
| integrations.count | 3 | 8 |
| integrations.list | `[{"name":"AWS"},{"name":"Azure"},{"name":"Google Cloud"}]` | `[{"name":"OpenAI"},{"name":"Alibaba Qwen"},{"name":"Meta Llama"},{"name":"Microsoft Phi"},{"name":"Hangzhou DeepSeek"},{"name":"Z.ai GLM"},{"name":"MoonshotAI Kimi"},{"name":"CoreWeave"}]` |
| language.primary | Python | Python |
| license.spdx | Apache-2.0 | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true}` | `{"cli":true,"ios":true,"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://metaflow.org","retrievedAt":"2026-08-14T09:21:30.422Z"}` | - |
| pricing.free_tier | yes | - |
| pricing.model | open_source | commercial |
| pricing.price_level | free | - |
| release.cadence_days | 5 | 16 |
| release.history | `[{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.38","date":"2026-08-18T00:34:39Z","type":"stable","version":"2.19.38"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.37","date":"2026-08-11T17:15:05Z","type":"stable","version":"2.19.37"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.36","date":"2026-08-05T18:15:13Z","type":"stable","version":"2.19.36"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.35","date":"2026-06-24T22:08:22Z","type":"stable","version":"2.19.35"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.34","date":"2026-06-18T12:37:53Z","type":"stable","version":"2.19.34"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.33","date":"2026-06-09T19:37:12Z","type":"stable","version":"2.19.33"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.32","date":"2026-06-03T21:24:38Z","type":"stable","version":"2.19.32"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.31","date":"2026-06-01T01:48:44Z","type":"stable","version":"2.19.31"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.30","date":"2026-05-29T08:38:51Z","type":"stable","version":"2.19.30"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.29","date":"2026-05-11T23:37:35Z","type":"stable","version":"2.19.29"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.28","date":"2026-05-07T16:37:54Z","type":"stable","version":"2.19.28"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.27","date":"2026-05-06T15:44:03Z","type":"stable","version":"2.19.27"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.26","date":"2026-05-05T19:10:56Z","type":"stable","version":"2.19.26"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.25","date":"2026-05-05T17:20:26Z","type":"stable","version":"2.19.25"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.24","date":"2026-05-01T18:36:35Z","type":"stable","version":"2.19.24"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.23","date":"2026-04-28T04:04:38Z","type":"stable","version":"2.19.23"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.22","date":"2026-03-20T21:38:19Z","type":"stable","version":"2.19.22"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.21","date":"2026-03-11T23:56:51Z","type":"stable","version":"2.19.21"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.20","date":"2026-02-26T20:51:42Z","type":"stable","version":"2.19.20"},{"url":"https://github.com/Netflix/metaflow/releases/tag/2.19.19","date":"2026-02-09T13:28:43Z","type":"stable","version":"2.19.19"}]` | `[{"url":"https://github.com/wandb/wandb/releases/tag/v0.28.2","date":"2026-08-12T01:35:26Z","type":"stable","version":"v0.28.2"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.28.1","date":"2026-07-16T18:48:24Z","type":"stable","version":"v0.28.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.28.0","date":"2026-06-23T00:46:58Z","type":"stable","version":"v0.28.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.27.2","date":"2026-06-06T01:48:49Z","type":"stable","version":"v0.27.2"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.27.1","date":"2026-06-04T06:12:42Z","type":"stable","version":"v0.27.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.27.0","date":"2026-05-14T03:45:43Z","type":"stable","version":"v0.27.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.26.1","date":"2026-04-23T16:40:38Z","type":"stable","version":"v0.26.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.26.0","date":"2026-04-13T19:45:29Z","type":"stable","version":"v0.26.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.25.1","date":"2026-03-10T23:54:02Z","type":"stable","version":"v0.25.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.25.0","date":"2026-02-13T19:44:06Z","type":"stable","version":"v0.25.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.24.2","date":"2026-02-05T00:19:26Z","type":"stable","version":"v0.24.2"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.24.1","date":"2026-01-29T23:47:48Z","type":"stable","version":"v0.24.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.24.0","date":"2026-01-13T23:01:48Z","type":"stable","version":"v0.24.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.23.1","date":"2025-12-03T02:27:21Z","type":"stable","version":"v0.23.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.23.0","date":"2025-11-11T21:27:15Z","type":"stable","version":"v0.23.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.22.3","date":"2025-10-29T00:00:30Z","type":"stable","version":"v0.22.3"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.22.2","date":"2025-10-07T19:55:36Z","type":"stable","version":"v0.22.2"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.22.1","date":"2025-09-29T17:18:23Z","type":"stable","version":"v0.22.1"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.22.0","date":"2025-09-18T20:09:42Z","type":"stable","version":"v0.22.0"},{"url":"https://github.com/wandb/wandb/releases/tag/v0.21.4","date":"2025-09-11T21:24:51Z","type":"stable","version":"v0.21.4"}]` |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.scorecard | 7 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=metaflow&per_page=100","last_12m":0,"max_severity":null}` | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=wandb&per_page=100","last_12m":0,"max_severity":"HIGH"}` |

## Capabilities (MLOps & LLMOps Tools)

| Capability | Metaflow | Weights & Biases |
|---|:--:|:--:|
| **Core** |  |  |
| Tool role | Agent / RAG framework | End-to-end ML platform |
| **Deployment** |  |  |
| Self-hostable / OSS core | ✓ | ✓ |
| Managed cloud available | ✓ | ✓ |
| On-prem / VPC deployment | ✓ | ✓ |
| **Observability** |  |  |
| LLM tracing / observability | - | ✓ |
| Evaluation (offline / LLM-judge / human) | - | ✓ |
| **Dev** |  |  |
| Prompt management + versioning | - | ✓ |
| **Tracking** |  |  |
| Experiment tracking / model registry | ✓ | ✓ |
| **Serving** |  |  |
| Model serving / inference endpoint | - | ✓ |
| **Interop** |  |  |
| OpenTelemetry / OpenLLMetry compatible | ✓ | - |
| Framework-agnostic | ✓ | ✓ |
| **Gateway** |  |  |
| Multi-provider model support | ✓ | - |
| **Data** |  |  |
| No-train-on-customer-data guarantee | - | - |

*Source: Vioscale. Generated 2026-09-01T17:35:16.939Z. "-" = undocumented, not absent.*