Comparison

MLflow vs One API

On the evidence we track, MLflow leads this comparison with a composite score of 70/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

MLflow full profile →One API full profile →

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★MLflow70

One API46

Attribute comparison across 2 tools
Attribute	MLflowLeader	One API
vioscaleAI score	70 / 100medium · 67%	46 / 100medium · 54%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	open_source	commercial
Price levelpricing.price_level	free	free
Transparentpricing.transparent	✓	-
Integrations
Countintegrations.count	9	12
Security
Scorecardsecurity.scorecard	5.4	-
Trust centersecurity.trust_center	https://mlflow.org/articles/tags/ai-compliance-policies/	https://github.com/security
Vulnerabilitiessecurity.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: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fsongquanpeng%2Fone-api&per_page=100 · Last 12m: 1 · Max severity: MODERATE
Adoption
Dependent reposadoption.dependent_repos	5,089	0
Github starsadoption.github_stars	28,260	37,155
Package downloads weeklyadoption.package_downloads_weekly	9,993,245	-
Activity
Commits last 30dactivity.commits_last_30d	100	0
Release
Cadence daysrelease.cadence_days	9	19
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	Apache-2.0	MIT
Language
Primarylanguage.primary	Python	JavaScript
Content
Faqcontent.faq	6 items	6 items

Score

vioscaleAI score

MLflow70 / 100medium · 67%

One API46 / 100medium · 54%

Pricing

Free tier

MLflow✓

One API✓

Model

MLflowopen_source

One APIcommercial

Price level

MLflowfree

One APIfree

Transparent

MLflow✓

One API–

Integrations

Count

MLflow9

One API12

Security

Scorecard

MLflow5.4

One API–

Trust center

MLflowhttps://mlflow.org/articles/tags/ai-compliance-policies/

One APIhttps://github.com/security

Vulnerabilities

MLflowCount: 82 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=mlflow&per_page=100 · Last 12m: 29 · Max severity: CRITICAL

One APICount: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fsongquanpeng%2Fone-api&per_page=100 · Last 12m: 1 · Max severity: MODERATE

Adoption

Dependent repos

MLflow5,089

One API0

Github stars

MLflow28,260

One API37,155

Package downloads weekly

MLflow9,993,245

One API–

Activity

Commits last 30d

MLflow100

One API0

Release

Cadence days

MLflow9

One API19

History

MLflow20 items

One API20 items

License

Spdx

MLflowApache-2.0

One APIMIT

Language

Primary

MLflowPython

One APIJavaScript

Content

Faq

MLflow6 items

One API6 items

Capabilities

Feature-by-feature on the axes that matter for llm gateways. “-” means undocumented, not absent.

Capability comparison for Llm Gateways
Capability	MLflow	One API
Capabilities
Openai compatible API	✓	✓
Automatic failover	-	✓
Routing strategy	-	Load based
Caching	-	-
Virtual key management	-	✓
Budget spend controls	✓	✓
Rate limiting	✓	✓
Guardrails moderation	Built in	-
Request cost observability	✓	✓
Streaming support	✓	✓
Deployment model	Self hosted	Self hosted
Open source	✓	✓
Pricing model	free_open_source	Open source self host

Capabilities

Openai compatible API

MLflow✓

One API✓

Automatic failover

MLflow-

One API✓

Routing strategy

MLflow-

One APILoad based

Caching

MLflow-

One API-

Virtual key management

MLflow-

One API✓

Budget spend controls

MLflow✓

One API✓

Rate limiting

MLflow✓

One API✓

Guardrails moderation

MLflowBuilt in

One API-

Request cost observability

MLflow✓

One API✓

Streaming support

MLflow✓

One API✓

Deployment model

MLflowSelf hosted

One APISelf hosted

Open source

MLflow✓

One API✓

Pricing model

MLflowfree_open_source

One APIOpen source self host

What each one is

The product in its own terms, so the numbers below have context.

MLflow

Leader

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.

Independently observed

One API

An open-source system for managing and redistributing API access across multiple large language model providers—including OpenAI, Claude, Gemini, and others—through a single OpenAI-compatible API. Deploys as a self-contained binary or Docker container.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

MLflow

Leader

Open source

as of 2026-10-05verify ↗

One API

Open sourceFree tier

as of 2026-09-14verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	MLflow	One API
WebPlatforms	✓	✓
CLIPlatforms	✓	✗
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗

Platforms

Web

MLflow✓

One API✓

CLI

MLflow✓

One API✗

Deployment

Cloud / SaaS

MLflow✓

One API✗

Self-hosted

MLflow✓

One API✓

On-premise

MLflow✓

One API✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (4)

Anthropic Claude
OpenAI
Google Gemini
Gemini

MLflow

Leader

32 total - 28 not shared

Databricks
AWS S3
Google Cloud Storage
Azure Storage
AzureML
Kubernetes
LangChain
Pydantic AI
SAP AI Core
JFrog
Aliyun
PostgreSQL
MySQL
MSSQL
Claude Code
OpenAI Codex
Anthropic
Ollama
OpenClaw
Qwen Code
LiteLLM
Amazon S3
OpenTelemetry/OTLP
OpenAI-compatible endpoints
+4 more

Independently observed

One API

26 total - 22 not shared

Azure OpenAI
DeepSeek
ByteDance Douyin
ChatGLM
Baidu ERNIE Bot
iFLYTEK Spark
Alibaba Tongyi Qianwen
360 Brain
Tencent Hunyuan
Cloudflare Gateway
Alibaba Qwen
Tencent Yuan
Baidu Wenxin
Byte Doubao
360 AI Brain
Claude
Doubao
Ernie
Spark
Qwen
360 Smart Brain
Hunyuan

Independently observed

Still deciding?

MLflow or One API: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.