# MLflow vs OpenRouter

| Attribute | MLflow | OpenRouter |
|---|---|---|
| **Vioscale score** | 76.2 (63% (medium)) | 79.8 (36% (low)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 5,089 | - |
| adoption.github_stars | 27,687 | - |
| adoption.package_downloads_weekly | 9,993,245 | - |
| deployment.options | `{"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | 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 | OpenRouter aggregates 500+ language models from 80+ providers through a single, OpenAI-compatible API interface. It offers automatic fallback routing, cost control, usage analytics, and data policy management for teams deploying AI applications at scale. |
| 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,"organization_wide_cost_tracking_and_chargebacks":true}` | `{"caching":"exact","open_source":true,"pricing_model":"usage-based-saas","rate_limiting":true,"deployment_model":"managed-SaaS","routing_strategy":"cost-based","streaming_support":true,"architecture_model":"managed_cloud_saas","automatic_failover":true,"budget_spend_controls":true,"openai_compatible_api":true,"virtual_key_management":true,"request_cost_observability":true,"bring_your_own_keys_byok_routing":true,"streaming_token_support_server_sent_events":true,"universal_api_key_for_100_plus_llm_providers":true,"zero_data_retention_and_prompt_logging_opt_out":true,"auto_fallback_routing_on_rate_limit_or_downtime":true,"organization_wide_cost_tracking_and_chargebacks":true,"semantic_caching_for_repeat_queries_and_cost_savings":false}` |
| integrations.count | 15 | 80 |
| 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":"Vercel AI SDK"},{"name":"Claude Code"},{"name":"Cursor"},{"name":"OpenAI SDK"},{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Google"},{"name":"Meta"},{"name":"Mistral"},{"name":"Model Context Protocol (MCP)"},{"name":"Terraform"}]` |
| language.primary | Python | - |
| license.spdx | Apache-2.0 | - |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://mlflow.org","retrievedAt":"2026-08-14T21:35:48.733Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free tier, 50 requests/day, no card required","features":["25+ free models","4 free providers","Chat and API access","Community support"],"description":"Evaluation tier with limited access to test the platform","contactSales":false,"includedLimits":{"models":"25+ free models","providers":"4 free providers","rate_limit":"50 requests/day"}},{"free":false,"name":"Pay-as-you-go","summary":"5.5% platform fee on model usage, fee discounts available","features":["500+ models from 80+ providers","Automatic fallback routing","Activity logs and export","Auto-routing and preferred vendor selection","Budgets and spend controls","Prompt caching","Management API key","Email support","No minimum spend"],"components":[{"of":"usage","kind":"percentage","rate":5.5}],"description":"Usage-based pricing scaled by model and tokens consumed","contactSales":false,"includedLimits":{"models":"500+ models","providers":"80+ providers"}},{"free":false,"name":"Enterprise","summary":"$25k/month list price inference with no fees, then 5% on overage","features":["500+ models, 80+ providers","Custom data policies and model/provider routing policies","Managed policy enforcement","SSO/SAML authentication","Contractual SLAs","Support SLA with shared Slack channel","High global rate limits","Optional dedicated limits","Invoicing options","Volume commitment pricing"],"commitment":"annual","components":[{"kind":"fixed","amount":25000,"period":"month","currency":"USD"},{"of":"usage","kind":"percentage","rate":5}],"description":"Volume-based commitment with dedicated support and custom policies","contactSales":true,"includedLimits":{"free_inference_value":"$25,000 list price/month"}}],"summary":"Free tier available. Pay-as-you-go at 5.5% platform fee. Enterprise from $25k/month.","currency":"USD","freeTier":true,"sourceUrl":"https://openrouter.ai/pricing","retrievedAt":"2026-08-21T13:44:21.104Z","billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | yes |
| release.cadence_days | 10 | - |
| 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/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/mlflow/mlflow/releases/tag/v3.9.0","date":"2026-01-29T08:49:56Z","type":"stable","version":"v3.9.0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.9.0rc0","date":"2026-01-16T04:48:57Z","type":"prerelease","version":"v3.9.0rc0"},{"url":"https://github.com/mlflow/mlflow/releases/tag/v3.8.1","date":"2025-12-27T02:56:22Z","type":"stable","version":"v3.8.1"}]` | - |
| security.gdpr | - | yes |
| security.scorecard | 5.5 | - |
| security.vulnerabilities | `{"count":80,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=mlflow&per_page=100","last_12m":27,"max_severity":"CRITICAL"}` | - |

## Capabilities (Llm Gateways)

| Capability | MLflow | OpenRouter |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Openai compatible API | ✓ | ✓ |
| Automatic failover | - | ✓ |
| Routing strategy | - | Cost based |
| 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 based saas |

*Source: Vioscale. Generated 2026-09-01T16:57:11.086Z. "-" = undocumented, not absent.*