Comparison

Microsoft Prompt Flow vs Promptfoo

No leader: the top candidate Promptfoo has only 0.22 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Microsoft Prompt Flow40
Promptfoo58
Score
vioscaleAI score
Microsoft Prompt Flow40 / 100medium · 53%
Promptfoo58 / 100low · 22%
Pricing
Free tier
Microsoft Prompt Flow–
Promptfoo✓
Model
Microsoft Prompt Flow–
Promptfooopen_source
Price level
Microsoft Prompt Flow–
Promptfoofree
Transparent
Microsoft Prompt Flow–
Promptfoo✓
Integrations
Count
Microsoft Prompt Flow2
Promptfoo8
Security
Iso27001
Microsoft Prompt Flow–
Promptfoo✓
Soc2
Microsoft Prompt Flow–
Promptfoo✓
Trust center
Adoption
Dependent repos
Microsoft Prompt Flow1
Promptfoo–
Github stars
Microsoft Prompt Flow11,253
Promptfoo–
Activity
Commits last 30d
Microsoft Prompt Flow0
Promptfoo–
Release
Cadence days
Microsoft Prompt Flow13
Promptfoo–
History
Microsoft Prompt Flow20 items
Promptfoo–
License
Spdx
Microsoft Prompt FlowMIT
Promptfoo–
Language
Primary
Microsoft Prompt FlowPython
Promptfoo–
Market
Availability
Microsoft Prompt Flow–
Content
Faq
Microsoft Prompt Flow4 items
Promptfoo7 items

Capabilities

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

Capabilities
Versioning model
Microsoft Prompt FlowHybrid
PromptfooUI hosted registry
Diff and rollback
Microsoft Prompt Flow-
Promptfoo-
Deploy without redeploy
Microsoft Prompt Flow-
Promptfoo-
Non engineer editing
Microsoft Prompt Flow-
Promptfoo✗
Multi model playground
Microsoft Prompt Flow-
Promptfoo✓
Ab testing
Microsoft Prompt Flow-
Promptfoo-
LLM judge or human eval
Microsoft Prompt Flow-
Promptfoo✓
Multi step flows
Microsoft Prompt Flow✓
Promptfoo-
Approval workflow
Microsoft Prompt Flow-
Promptfoo-
Tracing included
Microsoft Prompt Flow✓
Promptfoo-
Self hostable
Microsoft Prompt Flow✓
Promptfoo✓
Deployment model
Microsoft Prompt Flow-
PromptfooSelf hosted
Pricing model
Microsoft Prompt FlowOpen source self host
PromptfooOpen source self host

What each one is

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

Microsoft Prompt Flow

A development platform that supports the complete workflow of creating AI applications using large language models, from prototyping and debugging through testing, performance evaluation, and cloud deployment. Includes integrated tracing, evaluation frameworks, and support for both local and cloud-based execution.

Independently observed

Promptfoo

Automated testing and security evaluation framework for AI applications, with support for comparing multiple model providers and identifying potential vulnerabilities through red teaming and assertion-based validation.

Independently observed

Pricing

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

Microsoft Prompt Flow

Pricing not documented yet.

Promptfoo

HybridFree tier

Free open-source Community tier; Enterprise and On-Premise plans with custom pricing

  • CommunityFree
    • All LLM evaluation features
    • All model providers and integrations
    • Red teaming (10k probes/month)
    • Custom integration with your own app
    • Run locally or self-host on your own infrastructure
    • +2 more
  • EnterpriseContact sales
    • All Community features
    • Custom red teaming limits
    • Team sharing & collaboration
    • Continuous monitoring
    • Centralized security/compliance dashboard
    • +6 more
  • On-PremiseContact sales
    • Complete data isolation
    • On-premise deployment
as of verify ↗

Platform & deployment

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

Platforms
Web
Microsoft Prompt Flow✓
Promptfoo✗
CLI
Microsoft Prompt Flow✓
Promptfoo✓
Deployment
Cloud / SaaS
Microsoft Prompt Flow✓
Promptfoo✗
Self-hosted
Microsoft Prompt Flow✓
Promptfoo✓

Integrations

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

In common (1)
  • OpenAI

Microsoft Prompt Flow

2 total - 1 not shared
  • Azure OpenAI
Independently observed

Promptfoo

15 total - 14 not shared
  • Anthropic
  • Google (Gemini)
  • DeepSeek
  • MCP (Model Context Protocol)
  • CI/CD pipelines
  • Webhooks
  • Agent frameworks
  • CI/CD platforms
  • GitHub
  • Python providers
  • Azure
  • Bedrock
  • Ollama
  • Gemini
Independently observed
Still deciding?

Microsoft Prompt Flow or Promptfoo: 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.