ChainForge vs Promptfoo

Side-by-side comparison of two AI agent tools

Short answer

  • Promptfoo is growing faster: +1,110 GitHub stars in the last 30 days vs +11 for ChainForge.
  • Pick ChainForge for: an open-source visual programming environment for battle-testing prompts to LLMs. Pick Promptfoo for: open-source CLI and library for evaluating and red-teaming prompts, agents, RAG systems, and LLM apps.

From GitHub data refreshed daily.

ChainForgeopen-source

An open-source visual programming environment for battle-testing prompts to LLMs.

Promptfooopen-source

Open-source CLI and library for evaluating and red-teaming prompts, agents, RAG systems, and LLM apps

Metrics

ChainForgePromptfoo
Stars3.0k25.7k
Star velocity /mo10.8947368421052641.1k
Commits (90d)52920
Releases (6m)110
Downloads (30d, npm + PyPI)2.6K3.0M
Overall score0.49337864813271160.8639349362705032

Pros

  • +可视化数据流界面设计直观，支持拖拽操作创建复杂的测试流程，大幅降低批量实验的技术门槛
  • +支持同时测试多个 LLM 提供商和模型，包括本地 Ollama 模型，实现真正的横向对比分析
  • +内置丰富的评估指标和 AI 辅助功能，可自动生成测试数据和评估代码，提升实验效率
  • +Comprehensive testing suite covering both performance evaluation and security red teaming in a single tool
  • +Multi-provider support with easy comparison between OpenAI, Anthropic, Claude, Gemini, Llama and dozens of other models
  • +Strong CI/CD integration with automated pull request scanning and code review capabilities for production deployments

Cons

  • -需要掌握基础的 Python 编程和提示工程知识才能充分发挥工具潜力
  • -在线版本功能受限，本地安装版本才能使用环境变量、Python 评估等高级功能
  • -有效使用需要多个 LLM 的 API 密钥，可能产生较高的测试成本
  • -Requires API keys and credits for multiple LLM providers, which can become expensive for extensive testing
  • -Command-line focused interface may have a learning curve for teams preferring GUI-based tools
  • -Limited to evaluation and testing - does not provide actual LLM application development capabilities

Use Cases

  • •提示工程师需要系统性测试不同提示模板在特定任务上的效果，优化提示策略
  • •AI 研究团队评估多个模型在基准测试或自定义任务上的表现差异，为模型选型提供数据支持
  • •企业技术团队为生产环境的 AI 应用选择最佳的模型和提示组合，确保部署效果
  • •Automated testing and evaluation of prompt performance across different models before production deployment
  • •Security vulnerability scanning and red teaming of LLM applications to identify potential risks and compliance issues
  • •Systematic comparison of model performance and cost-effectiveness to optimize AI application architecture
View ChainForge DetailsView Promptfoo Details

FAQ

Which is more popular, ChainForge or Promptfoo?
Promptfoo has more GitHub stars (25,665 vs 3,033).
Which is more actively developed, ChainForge or Promptfoo?
Promptfoo had more commits in the last 90 days (920 vs 52).
Should I use ChainForge or Promptfoo?
Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.