Skip to content
AI.info

Tools

Langfuse vs Promptfoo

Langfuse or Promptfoo? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.

In short

  • Both: Command line, Choice of models, Self-hosted, API, Traces and evaluates
  • Only Langfuse states: Official SDKs

Langfuse

Langfuse traces, evaluates, and monitors AI agents and LLM applications, with prompt management, experiments, and cost analytics.

Plans

Hobby

Free

  • 50k units / month included
  • 30 days data access
  • 2 users
  • Community support via GitHub
  • All platform features (with limits)

Core

  • $29 / month
  • $8/100k units
  • 100k units / month included
  • 90 days data access
  • Unlimited users
  • In-app support
  • Everything in Hobby

Pro

  • $199 / month
  • $8/100k units
  • 100k units / month included
  • 3 years data access
  • Data retention management
  • Unlimited annotation queues
  • High rate limits
  • Prioritized in-app support

Enterprise

  • $2499 / month
  • $8/100k units
  • 100k units / month included
  • Audit Logs
  • SCIM API
  • Custom rate limits
  • Uptime SLA
  • Named lead support engineer

Prices checked 2026-09-25 on the maker’s page.

Capabilities

  • Command line — “Langfuse CLI Full API access from the terminal for agent workflows, scripts, and CI/CD.” source
  • Choice of models — “Test prompts on real production inputs and compare models side-by-side.” source
  • Self-hosted — “Self-host at scale” source
  • API — “REST APIs for everything” source
  • Official SDKs — “Best-in-class SDKs: Native SDKs for Python and JavaScript” source
  • Traces and evaluates — “Trace, evaluate, and improve AI agents with one open platform.” source

Security

  • SOC 2 Type II — “The production service is based on the same open-source Langfuse codebase, is covered by SOC 2 Type II and ISO 27001 audits, and undergoes annual third-party penetration tests.” source
  • SOC 2 — “We take active steps to demonstrate our commitment to data security and privacy such as annual SOC2 Type 2 and ISO27001 audits as well as External Penetration Tests.” source
  • ISO 27001 — “The production service is based on the same open-source Langfuse codebase, is covered by SOC 2 Type II and ISO 27001 audits, and undergoes annual third-party penetration tests.” source
  • GDPR — “Langfuse is GDPR compliant, and offers data retention, data masking and data deletion capabilities to manage the processing of personal data .” source
  • HIPAA — “We offer a DPA , provide a HIPAA-ready region , and adhere to our Privacy Policy .” source
  • Data kept in the EU — “Langfuse Cloud – fully-managed SaaS (multi-tenant) with US, EU, Japan, and HIPAA data regions” source

Latest updates

About Langfuse

Promptfoo

Promptfoo evaluates and red-teams LLM apps, prompts, models, agents, and RAG systems through a CLI, library, and web interface.

Plans

Community

Free Forever

  • 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
  • Vulnerability scanning
  • Community support

Enterprise

Custom

  • Custom red teaming limits
  • Team sharing & collaboration
  • Continuous monitoring
  • Centralized security/compliance dashboard
  • SSO and granular permission profiles
  • Promptfoo API access
  • Managed cloud deployment
  • Priority support & SLA guarantees

On-Premise

Custom

  • All Enterprise features
  • Deployment on your own infrastructure
  • Complete data isolation
  • Dedicated runner
  • Assigned deployment engineer

Prices checked 2026-09-24 on the maker’s page.

Capabilities

  • Command line — “promptfoo is an open-source CLI and library for evaluating and red-teaming LLM apps.” source
  • Choice of models — “Use OpenAI, Anthropic, Azure, Google, HuggingFace, open-source models like Llama, or integrate custom API providers for any LLM API” source
  • Self-hosted — “Run locally or self-host on your own infrastructure” source
  • API — “Promptfoo API access” source
  • Traces and evaluates — “Test and evaluate your prompts, models, and RAG pipelines” source

Security

  • SOC 2 Type II — “Promptfoo SOC2 Type II Report” source
  • SOC 2 — “Promptfoo SOC2 Type II Report” source
  • ISO 27001 — “Promptfoo ISO 27001 Certificate” source

Latest updates

About Promptfoo