Prompt & EvalCommercial✦ Free Tier

Humanloop

Prompt management, A/B testing, and evals for production LLM apps

App Infrastructure

About

Humanloop is a platform for managing prompts, running experiments, and evaluating LLM outputs in production. It provides a prompt editor, version history, A/B testing across models, and human plus automated eval workflows — keeping your prompts in sync with your code.

Choose Humanloop when…

  • managing prompts as production artifacts with version control
  • running A/B tests across different models and prompt variants
  • need human labeling and automated evals in one platform

Builder Slot

How do you know it's working?Optional for most stacks

Tests, evals, and experiment tracking to measure and improve your AI output quality

Dev Tools
Not applicable
App Infra
Recommended
Hybrid
Optional

Other tools in this slot:

Stack Genome Detection

AIchitect's Genome scanner detects Humanloop in your project via these signals:

npm packages
humanloop
pip packages
humanloop
env vars
HUMANLOOP_API_KEY

Alternatives to consider (3)

Pricing

✦ Free tier available
Free$0
Growth$200/mo

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