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Introducing Respan Router

Humanloop vs Ragas (2026)

Updated March 10, 2026

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Overview

Rating
10.0 / 10
Rating
10.0 / 10
Best For
—
Best For
Developers building RAG applications who need specialized evaluation metrics
Product Summary

Humanloop is a prompt engineering and evaluation platform that helps teams manage, version, and optimize LLM prompts. It provides prompt playgrounds, A/B testing, human feedback collection, and evaluation pipelines. Teams can track prompt performance across models and deploy optimized prompts to production.

Product Summary

Ragas is an open-source evaluation framework specifically designed for RAG (Retrieval-Augmented Generation) pipelines. It provides metrics for context precision, context recall, faithfulness, and answer relevancy, helping teams measure and improve the quality of their RAG systems. Ragas has become the standard evaluation toolkit for teams building production RAG applications.

Starting Price
$0Per month
Starting Price
Open Source
Free Trial
Yes
Free Trial
No
Free Version
Yes
Free Version
No
Website

Key features

Core capabilities each platform advertises.

HumanloopHumanloop
Data not available
RagasRagas
  • RAG-specific evaluation framework
  • Component-wise metrics for RAG
  • Synthetic test data generation
  • LLM-as-judge evaluators
  • Open-source Python library

Strengths and tradeoffs

What each tool does well, and the limitations to keep in mind.

HumanloopHumanloop

Pros

  • Collaborative platform for team development
  • Version control for prompts
  • A/B testing and evaluation tools
  • Free tier for individuals

Cons

  • Pro tier at USD 99/mo may be steep for small teams
  • Learning curve for full feature utilization
  • Requires commitment to platform workflow
RagasRagas

Pros

  • Specialized focus on RAG evaluation with metrics specifically designed for retrieval systems
  • Open-source framework providing transparency and community-driven development
  • Strong industry endorsement from OpenAI, LangChain, and LlamaIndex
  • Y Combinator backing providing credibility and potential for growth
  • Easy integration with popular frameworks like LangChain and LlamaIndex

Cons

  • Very small team of 3 employees may limit support and feature development
  • Limited to RAG evaluation, not a comprehensive observability solution
  • Minimal funding ($500K) compared to competitors may impact long-term sustainability
  • Lack of clear commercial pricing model for enterprise features

Humanloop or Ragas — which should you choose?

Choose Humanloop if you want

Data not available

Choose Ragas if you want

  • Evaluating RAG pipeline quality end-to-end
  • Measuring retrieval precision and recall
  • Testing faithfulness and answer relevance
  • Generating synthetic evaluation datasets
  • Benchmarking RAG across configurations

Compare Humanloop and Ragas on your own traffic

10KFree traces/mo
1,000+Models
5 minSetup

Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.

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