# MLflow vs PromptLayer

**Leader by vioscaleAI score:** MLflow

| Attribute | MLflow | PromptLayer |
|---|---|---|
| **vioscaleAI score** | 70.4 (67% (medium)) | 63.3 (72% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 5,089 | - |
| adoption.github_stars | 28,260 | - |
| adoption.package_downloads_weekly | 9,993,245 | - |
| 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 service that records interactions with various LLM providers, allowing developers to review past requests, troubleshoot issues, and restore previous prompt configurations. Includes distributed tracing, version control, regression testing, and automated evaluation for prompts and AI agents. It is indexed under Prompt Management.","source":"https://promptlayer.com","question":"What is PromptLayer?","confidence":0.6},{"answer":"PromptLayer offers a free tier, so you can start without paying. Paid plans start at $0.00. 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.promptlayer.com/pricing/","question":"Is PromptLayer free?","confidence":0.6},{"answer":"We have confirmed browser-based access to PromptLayer. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://promptlayer.com","question":"What platforms does PromptLayer support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for PromptLayer, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://promptlayer.com","question":"Can PromptLayer be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for PromptLayer, including Pydantic AI, OpenAI, Anthropic, Google GenAI, AWS Bedrock, OpenTelemetry, Vertex AI and Gemini API. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://promptlayer.com","question":"What does PromptLayer integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for PromptLayer. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as PromptLayer not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.promptlayer.com/pricing/","question":"What security certifications does PromptLayer have?","confidence":0.6},{"answer":"PromptLayer is available worldwide. Its primary markets are the United States and the EU. The vendor is headquartered in the United States.","source":"https://www.promptlayer.com/pricing/","question":"Where is PromptLayer available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":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 platform that maintains logs of prompts and API requests, enabling debugging and replay of previous completions. Provides version tracking, testing, and monitoring with integrated tracing and evaluation features. |
| 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}` | `{"caching":"exact","ab_testing":true,"open_source":true,"pricing_model":"usage/seat-based-saas","rate_limiting":true,"self_hostable":true,"deployment_model":"managed-SaaS","multi_step_flows":true,"tracing_included":true,"versioning_model":"git-native","approval_workflow":true,"diff_and_rollback":true,"streaming_support":true,"automatic_failover":true,"non_engineer_editing":true,"openai_compatible_api":true,"multi_model_playground":true,"deploy_without_redeploy":true,"llm_judge_or_human_eval":true,"request_cost_observability":true}` |
| integrations.count | 9 | 5 |
| 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":"Anthropic"},{"name":"Google GenAI"},{"name":"AWS Bedrock"},{"name":"OpenTelemetry"},{"name":"Azure OpenAI"},{"name":"Vertex AI"},{"name":"Gemini API","native":true,"direction":"bidirectional"}]` |
| language.primary | Python | - |
| license.spdx | Apache-2.0 | - |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":["US","EU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://mlflow.org","retrievedAt":"2026-10-05T10:15:00.395Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free","features":["5 Users","2.5k/month Requests","1 Workspace","250/month Eval Cell Executions","10MB max per Dataset","Basic Support"],"minSeats":5,"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"for hackers","contactSales":false,"includedLimits":{"users":"5","requests":"2.5k/month","dataset_size":"10MB","eval_executions":"250/month"}},{"free":false,"name":"Pro","summary":"$49/month plus $0.003/transaction","features":["Unlimited Playgrounds","Unlimited Workspaces","150MB max per Dataset","Webhooks Included","Dedicated Support"],"components":[{"kind":"fixed","amount":49,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"transaction"},"kind":"metered","amount":0.003,"currency":"USD"}],"description":"for small teams","contactSales":false,"includedLimits":{"workspaces":"Unlimited","playgrounds":"Unlimited","dataset_size":"150MB"}},{"free":false,"name":"Team","summary":"$500/month plus $0.002/transaction","features":["25 Users","100k+/month Requests","7.5k+/month Eval Cell Executions","1GB max per Dataset","Webhooks Included","Role Based Access Controls","Dedicated Support"],"minSeats":25,"components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"transaction"},"kind":"metered","amount":0.002,"currency":"USD"}],"description":"for growing teams","contactSales":false,"includedLimits":{"users":"25","requests":"100k+/month","dataset_size":"1GB","eval_executions":"7.5k+/month"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, contact sales","features":["Custom limits on everything","Role Based Access Controls","Deployment Approvals","HIPAA with BAA","Flexible Hosting Options","Dedicated Support","Data Retention Control"],"contactSales":true}],"summary":"Free tier available. Pro starts at $49/month, Team at $500/month, both with usage-based billing ($0.002–$0.003 per transaction). Enterprise custom pricing.","currency":"USD","freeTier":true,"sourceUrl":"https://www.promptlayer.com/pricing/","retrievedAt":"2026-08-21T12:43:41.184Z","startingPrice":{"amount":49,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | mid |
| pricing.starting_price | - | `{"amount":49,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 9 | - |
| 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"}]` | - |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | 5.4 | - |
| security.soc2 | - | yes |
| security.trust_center | https://mlflow.org/articles/tags/ai-compliance-policies/ | - |
| 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"}` | - |

## Capabilities (Llm Gateways)

| Capability | MLflow | PromptLayer |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Openai compatible API | ✓ | ✓ |
| Automatic failover | - | ✓ |
| Routing strategy | - | - |
| Caching | - | Exact |
| Virtual key management | - | - |
| Budget spend controls | ✓ | - |
| Rate limiting | ✓ | ✓ |
| Guardrails moderation | Built in | - |
| Request cost observability | ✓ | ✓ |
| Streaming support | ✓ | ✓ |
| Deployment model | Self hosted | Managed SaaS |
| Open source | ✓ | ✓ |
| Pricing model | free_open_source | usage/seat-based-saas |

*Source: vioscaleAI. Generated 2026-10-17T01:29:57.200Z. "-" = undocumented, not absent.*