These tools competes with
PromptLayervsHumanloop
Prompt versioning, logging, and A/B testing versus Prompt management, A/B testing, and evals for production LLM apps
Compare interactively in Explore →Choose PromptLayer when…
- •You want prompt versioning and request logging
- •Prompt history, replay, and A/B testing matter
- •You need visibility into what prompts are running in production
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
Side-by-side comparison
Field
PromptLayer
Humanloop
Category
Prompt & Eval
Prompt & Eval
Type
Commercial
Commercial
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Pro: Paid
Free: $0Growth: $200/mo
GitHub Stars
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Health
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PromptLayer
Log every LLM request, version prompts, and run A/B tests. Provides a visual interface for prompt engineering teams to iterate collaboratively.
Humanloop
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.
Only PromptLayer (2)
LangfuseHumanloop
Only Humanloop (3)
VellumPromptLayerGalileo
Explore the full AI landscape
See how PromptLayer and Humanloop fit into the bigger picture — 207 tools, 452 relationships, all mapped.