Comparison

ChainForge 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.
ChainForge54
Promptfoo58
Score
vioscaleAI score
ChainForge54 / 100medium · 54%
Promptfoo58 / 100low · 22%
Pricing
Free tier
ChainForge✓
Promptfoo✓
Model
ChainForgeopen_source
Promptfooopen_source
Price level
ChainForgefree
Promptfoofree
Transparent
ChainForge✓
Promptfoo✓
Integrations
Count
ChainForge5
Promptfoo8
Security
Iso27001
ChainForge–
Promptfoo✓
Soc2
ChainForge–
Promptfoo✓
Adoption
Dependent repos
ChainForge0
Promptfoo–
Github stars
ChainForge3,036
Promptfoo–
Activity
Commits last 30d
ChainForge49
Promptfoo–
Release
Cadence days
ChainForge25
Promptfoo–
History
ChainForge20 items
Promptfoo–
License
Spdx
ChainForgeMIT
Promptfoo–
Language
Primary
ChainForgeTypeScript
Promptfoo–
Market
Availability
Content
Faq
ChainForge6 items
Promptfoo7 items

Capabilities

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

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

What each one is

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

ChainForge

A visual environment for systematically comparing and evaluating LLM prompts, models, and their responses through data flow workflows.

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.

ChainForge

Open source
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
ChainForge✓
Promptfoo✗
CLI
ChainForge✗
Promptfoo✓
Deployment
Cloud / SaaS
ChainForge✓
Promptfoo✗
Self-hosted
ChainForge✓
Promptfoo✓

Integrations

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

In common (3)
  • OpenAI
  • Google Gemini
  • Ollama

ChainForge

6 total - 3 not shared
  • Alpaca
  • Llama
  • Dalai
Independently observed

Promptfoo

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

ChainForge 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.