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Head to head · AI agent & LLM development platforms

Langfuse vs Promptfoo

Pricing, features, India readiness and rating compared. Langfuse rates highest.

Open-source LLM engineering.

AI poweredNewFree plan

Open-source tool for testing, evaluating and red-teaming LLM prompts and applications.

AI poweredFree planOpen source
CompareLangfusePromptfoo
CategoryAI agent & LLM development platformsPrompt engineering tools
VendorLangfusePromptfoo
HeadquartersBerlin, GermanySan Francisco, United States
Made in IndiaNoNo
Starting priceFree planOn request
Free planYesYes
Free trialYesYes
Published pricingYesYes
Deploymentcloudcloud
Mobile appsNoNo
Founded2022
Best forStartup, Small business, SMBStartup, Small business, SMB
App Advisor rating4.4 / 54.3 / 5

Langfuse: pros & cons

  • +Free plan available to evaluate at zero cost
  • +Covers more than one software category, reducing the number of tools you run
  • Global vendor — check India-specific compliance (GST, TDS) and support hours before you commit

Key features

  • LLM APIs and model hosting
  • RAG and vector search
  • Agent frameworks and tool calling
  • Prompt management and evaluation
  • Observability and cost tracking
  • Guardrails and safety

Promptfoo: pros & cons

  • +Free plan available to evaluate at zero cost
  • Global vendor — check India-specific compliance (GST, TDS) and support hours before you commit

Key features

  • Prompt versioning and change history
  • Side-by-side model and prompt comparison
  • Evaluation against test datasets
  • Automated scoring and LLM-as-judge
  • Deploy prompts without redeploying code
  • Collaboration for non-technical authors

Get an instant demo

See Langfuse live, with an App Advisor discount

Frequently asked questions

Which is better, Langfuse or Promptfoo?+

Langfuse scores higher on App Advisor's rating (4.4/5) for pricing transparency, India readiness and maturity. The right choice depends on your workflow — request demos of both.

Is Langfuse cheaper than Promptfoo?+

Langfuse starts at Free plan and Promptfoo at On request. Compare per-user costs at your team size, and remember GST is added on top.

Can I switch from Langfuse to Promptfoo?+

Most ai agent & llm development platforms products import CSV or Excel data; check whether historical records, attachments and integrations move too before you switch.

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