Comparison

Humanloop 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.
Humanloop56
Promptfoo58
Score
vioscaleAI score
Humanloop56 / 100high · 75%
Promptfoo58 / 100low · 22%
Pricing
Free tier
Humanloop✓
Promptfoo✓
Model
Humanloopfreemium
Promptfooopen_source
Price level
Humanlooplow
Promptfoofree
Transparent
Humanloop✗
Promptfoo✓
Integrations
Count
Humanloop5
Promptfoo8
Security
Certifications
HumanloopSOC 2 Type II
Promptfoo–
Disclosure policy
Humanloop✓
Promptfoo–
Gdpr
Humanloop✓
Promptfoo–
Hipaa
Humanloop✓
Promptfoo–
Iso27001
Humanloop–
Promptfoo✓
Soc2
Humanloop✓
Promptfoo✓
Content
Faq
Humanloop7 items
Promptfoo7 items

Capabilities

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

Capabilities
Versioning model
HumanloopHybrid
PromptfooUI hosted registry
Diff and rollback
Humanloop✓
Promptfoo-
Deploy without redeploy
Humanloop-
Promptfoo-
Non engineer editing
Humanloop✓
Promptfoo✗
Multi model playground
Humanloop✓
Promptfoo✓
Ab testing
Humanloop✓
Promptfoo-
LLM judge or human eval
Humanloop✓
Promptfoo✓
Multi step flows
Humanloop✓
Promptfoo-
Approval workflow
Humanloop-
Promptfoo-
Tracing included
Humanloop✓
Promptfoo-
Self hostable
Humanloop✓
Promptfoo✓
Deployment model
Humanloop-
PromptfooSelf hosted
Pricing model
HumanloopUsage/seat based saas
PromptfooOpen source self host

What each one is

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

Humanloop

An enterprise platform that helps teams evaluate language model performance, manage and version prompts, and monitor AI systems in production.

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.

Humanloop

SubscriptionFree tier

Free trial. Monthly billing with no long-term commitment for standard plans; annual billing available for enterprise.

  • Free TrialFree
  • EnterpriseContact sales
    • SSO + SAML
    • Role-based access controls
    • Hands-on support with SLA
    • VPC deployment add-on
as of verify ↗

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
Humanloop✓
Promptfoo✗
CLI
Humanloop✗
Promptfoo✓
Deployment
Cloud / SaaS
Humanloop✓
Promptfoo✗
Self-hosted
Humanloop✓
Promptfoo✓

Integrations

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

In common (3)
  • CI/CD pipelines
  • OpenAI
  • Anthropic

Humanloop

6 total - 3 not shared
  • Git
  • Vercel AI SDK
  • CI/CD
Independently observed

Promptfoo

15 total - 12 not shared
  • Google (Gemini)
  • DeepSeek
  • MCP (Model Context Protocol)
  • Webhooks
  • Agent frameworks
  • CI/CD platforms
  • GitHub
  • Python providers
  • Azure
  • Bedrock
  • Ollama
  • Gemini
Independently observed
Still deciding?

Humanloop 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.