Comparison

Metaflow vs Portkey

On the evidence we track, Portkey leads this comparison with a composite score of 79/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Metaflow full profile →Portkey full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

Metaflow56

★Portkey79

Attribute comparison across 2 tools
Attribute	Metaflow	PortkeyLeader
vioscaleAI score	56 / 100medium · 63%	79 / 100medium · 74%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	open_source	freemium
Price levelpricing.price_level	free	mid
Starting pricepricing.starting_price	-	$49
Transparentpricing.transparent	-	✓
Integrations
Countintegrations.count	3	1,600
Security
Certificationssecurity.certifications	-	SOC2 Type II, ISO 27001, GDPR, HIPAA
Gdprsecurity.gdpr	-	✓
Hipaasecurity.hipaa	-	✓
Iso27001security.iso27001	-	✓
Scorecardsecurity.scorecard	6.9	-
Soc2security.soc2	-	✓
Trust centersecurity.trust_center	-	https://portkey.ai/features/security-compliance
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=metaflow&per_page=100 · Last 12m: 0	-
Reliability
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	106	-
Github starsadoption.github_stars	10,304	-
Package downloads weeklyadoption.package_downloads_weekly	103,395	-
Activity
Commits last 30dactivity.commits_last_30d	13	-
Release
Cadence daysrelease.cadence_days	5	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	Apache-2.0	-
Language
Primarylanguage.primary	Python	-
Market
Availabilitymarket.availability	Available worldwide · Popular in US · HQ US	Available worldwide
Content
Faqcontent.faq	7 items	6 items

Score

vioscaleAI score

Metaflow56 / 100medium · 63%

Portkey79 / 100medium · 74%

Pricing

Free tier

Metaflow✓

Portkey✓

Model

Metaflowopen_source

Portkeyfreemium

Price level

Metaflowfree

Portkeymid

Starting price

Metaflow–

Portkey$49

Transparent

Metaflow–

Portkey✓

Integrations

Count

Metaflow3

Portkey1,600

Security

Certifications

Metaflow–

PortkeySOC2 Type II, ISO 27001, GDPR, HIPAA

Gdpr

Metaflow–

Portkey✓

Hipaa

Metaflow–

Portkey✓

Iso27001

Metaflow–

Portkey✓

Scorecard

Metaflow6.9

Portkey–

Soc2

Metaflow–

Portkey✓

Trust center

Metaflow–

Portkeyhttps://portkey.ai/features/security-compliance

Vulnerabilities

MetaflowCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=metaflow&per_page=100 · Last 12m: 0

Portkey–

Reliability

Status page

Metaflow✓

Portkey✓

Adoption

Dependent repos

Metaflow106

Portkey–

Github stars

Metaflow10,304

Portkey–

Package downloads weekly

Metaflow103,395

Portkey–

Activity

Commits last 30d

Metaflow13

Portkey–

Release

Cadence days

Metaflow5

Portkey–

History

Metaflow20 items

Portkey–

License

Spdx

MetaflowApache-2.0

Portkey–

Language

Primary

MetaflowPython

Portkey–

Market

Availability

MetaflowAvailable worldwide · Popular in US · HQ US

PortkeyAvailable worldwide

Content

Faq

Metaflow7 items

Portkey6 items

Capabilities

Feature-by-feature on the axes that matter for mlops & llmops tools. “-” means undocumented, not absent.

Capability comparison for MLOps & LLMOps Tools
Capability	Metaflow	Portkey
Core
Tool role	Agent / RAG framework	Model gateway / router
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	-	Unknown

Core

Tool role

MetaflowAgent / RAG framework

PortkeyModel gateway / router

Deployment

Self-hostable / OSS core

Metaflow✓

Portkey✓

Managed cloud available

Metaflow✓

Portkey✓

On-prem / VPC deployment

Metaflow✓

Portkey✓

Observability

LLM tracing / observability

Metaflow-

Portkey✓

Evaluation (offline / LLM-judge / human)

Metaflow-

Portkey✓

Dev

Prompt management + versioning

Metaflow-

Portkey✓

Tracking

Experiment tracking / model registry

Metaflow✓

Portkey✓

Serving

Model serving / inference endpoint

Metaflow-

Portkey✓

Interop

OpenTelemetry / OpenLLMetry compatible

Metaflow✓

Portkey-

Framework-agnostic

Metaflow✓

Portkey✓

Gateway

Multi-provider model support

Metaflow✓

Portkey✓

Data

No-train-on-customer-data guarantee

Metaflow-

PortkeyUnknown

What each one is

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

Metaflow

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.

Independently observed

Portkey

Leader

Platform providing API gateway functionality, observability with logging and traces, safety guardrails, access governance, and prompt version management for teams deploying AI applications at scale.

Independently observed

Pricing

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

Metaflow

Open sourceFree tier

as of 2026-08-14verify ↗

Portkey

Leader

from $49/moHybridFree tier

Free tier with 10k logs/month. Production at $49/month with usage overages. Enterprise custom pricing for compliance-focused organizations.

DeveloperFree
- Universal API & Key Management
- Routing, Fallbacks, Load Balancing, Retries
- 3 Prompt Templates with Playground, Versioning, Variables
- Logs, Traces, Feedback, Custom Metadata, Filters
- Simple Caching
- +3 more
Production$49/month + $9 per 100k request overage
- Universal API, Fallbacks, Load Balancing, Retries
- Unlimited Prompt Templates with Playground, API Deployment, Versioning, Variables
- Logs, Traces, Feedback, Metadata, Filters, Alerts
- LLM & Partner Guardrails
- Role-Based Access Control, Service Account API Keys
- +3 more
EnterpriseContact sales
- Custom retention periods for logs and metrics
- Advanced Evaluation Templates with custom guardrail hooks
- Role-Based Access Control, SSO (Okta), Granular Budget & Rate Limits
- Private Cloud Deployment, VPC Hosting, Data Export to Data Lakes
- SOC2 Type 2, GDPR, HIPAA compliance certifications
- +3 more

as of 2026-08-21verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Metaflow	Portkey
WebPlatforms	✗	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✗	✓
HybridDeployment	✗	✓

Platforms

Web

Metaflow✗

Portkey✓

CLI

Metaflow✓

Portkey✓

Deployment

Cloud / SaaS

Metaflow✓

Portkey✓

Self-hosted

Metaflow✓

Portkey✓

On-premise

Metaflow✗

Portkey✓

Hybrid

Metaflow✗

Portkey✓

Integrations

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

In common (2)

AWS
Azure

Metaflow

4 total - 2 not shared

Google Cloud
IPython

Independently observed

Portkey

Leader

16 total - 14 not shared

OpenAI
Google Cloud (Vertex AI, Gemini)
GCP
Langgraph
CrewAI
Strands Agents
Google ADK
Anthropic
Claude
Mistral
Google
MongoDB
Vertex AI
Claude Code

Independently observed

Still deciding?

Metaflow or Portkey: 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.