Supercharge Your LLM Application Evaluations 🚀
Documentation |
Quick start |
Join Discord |
Blog |
NewsLetter |
Careers
Objective metrics, intelligent test generation, and data-driven insights for LLM apps
Ragas is your ultimate toolkit for evaluating and optimizing Large Language Model (LLM) applications. Say goodbye to time-consuming, subjective assessments and hello to data-driven, efficient evaluation workflows.
Don't have a test dataset ready? We also do production-aligned test set generation.
Key Features
- 🎯 Objective Metrics: Evaluate your LLM applications with precision using both LLM-based and traditional metrics.
- 🧪 Test Data Generation: Automatically create comprehensive test datasets covering a wide range of scenarios.
- 🔗 Seamless Integrations: Works flawlessly with popular LLM frameworks like LangChain and major observability tools.
- 📊 Build feedback loops: Leverage production data to continually improve your LLM applications.
:shield: Installation
Pypi:
pip install ragas
Alternatively, from source:
pip install git+https://github.com/vibrantlabsai/ragas
:fire: Quickstart
Clone a Complete Example Project
The fastest way to get started is to use the ragas quickstart command:
# List available templates
ragas quickstart
# Create a RAG evaluation project
ragas quickstart rag_eval
# Specify where you want to create it.
ragas quickstart rag_eval -o ./my-project
Available templates:
rag_eval - Evaluate RAG systems
Coming Soon:
agent_evals - Evaluate AI agentsbenchmark_llm - Benchmark and compare LLMsprompt_evals - Evaluate prompt variationsworkflow_eval - Evaluate complex workflows
Evaluate your LLM App
ragas comes with pre-built metrics for common evaluation tasks. For example, Aspect Critique evaluates any aspect of your output using DiscreteMetric:
import asyncio
from openai import AsyncOpenAI
from ragas.metrics import DiscreteMetric
from ragas.llms import llm_factory
# Setup your LLM
client = AsyncOpenAI()
llm = llm_factory("gpt-4o", client=client)
# Create a custom aspect evaluator
metric = DiscreteMetric(
name="summary_accuracy",
allowed_values=["accurate", "inaccurate"],
prompt="""Evaluate if the summary is accurate and captures key information.
Response: {response}
Answer with only 'accurate' or 'inaccurate'."""
)
# Score your application's output
async def main():
score = await metric.ascore(
llm=llm,
response="The summary of the text is..."
)
print(f"Score: {score.value}") # 'accurate' or 'inaccurate'
print(f"Reason: {score.reason}")
if __name__ == "__main__":
asyncio.run(main())
Note: Make sure your OPENAI_API_KEY environment variable is set.
Find the complete Quickstart Guide
Want help in improving your AI application using evals?
In the past 2 years, we have seen and helped improve many AI applications using evals. If you want help with improving and scaling up your AI application using evals.
🔗 Book a slot or drop us a line: [email protected].
If you want to get more involved with Ragas, check out our discord server. It's a fun community where we geek out about LLM, Retrieval, Production issues, and more.
Contributors
+----------------------------------------------------------------------------+
| +----------------------------------------------------------------+ |
| | Developers: Those who built with `ragas`. | |
| | (You have `import ragas` somewhere in your project) | |
| | +----------------------------------------------------+ | |
| | | Contributors: Those who make `ragas` better. | | |
| | | (You make PR to this repo) | | |
| | +----------------------------------------------------+ | |
| +----------------------------------------------------------------+ |
+----------------------------------------------------------------------------+
We welcome contributions from the community! Whether it's bug fixes, feature additions, or documentation improvements, your input is valuable.
- Fork the repository
- Create your feature branch (git checkout -b feature/AmazingFeature)
- Commit your changes (git commit -m 'Add some AmazingFeature')
- Push to the branch (git push origin feature/AmazingFeature)
- Open a Pull Request
🔍 Open Analytics
At Ragas, we believe in transparency. We collect minimal, anonymized usage data to improve our product and guide our development efforts.
✅ No personal or company-identifying information
✅ Open-source data collection code
✅ Publicly available aggregated data
To opt-out, set the RAGAS_DO_NOT_TRACK environment variable to true.
Cite Us
@misc{ragas2024,
author = {VibrantLabs},
title = {Ragas: Supercharge Your LLM Application Evaluations},
year = {2024},
howpublished = {\url{https://github.com/vibrantlabsai/ragas}},
}
Ragas 是一个开源的 Python 工具包,用于评估和优化 LLM 应用:它用客观的指标、自动生成的测试集和数据驱动的洞察,取代缓慢、主观的人工评估。