Comparison

OpenAI Evals vs Ragas

No leader: the top candidate Ragas has only 0.27 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
OpenAI Evals45
Ragas58
Score
Vioscale score
OpenAI Evals45 / 100low · 30%
Ragas58 / 100low · 27%
Pricing
Free tier
OpenAI Evals
Ragas
Model
OpenAI Evalscommercial
Price level
OpenAI Evalsfree
Ragasfree
Transparent
OpenAI Evals
Ragas
Integrations
Count
OpenAI Evals3
Ragas3
Adoption
Dependent repos
OpenAI Evals1
Ragas1
Github stars
OpenAI Evals19,257
Ragas15,484
Activity
Commits last 30d
OpenAI Evals0
Ragas
Release
Cadence days
OpenAI Evals
Ragas7
History
OpenAI Evals
License
Spdx
OpenAI Evals
Language
Primary
OpenAI EvalsPython
RagasPython

Capabilities

Feature-by-feature on the axes that matter for ai evals testing. “-” means undocumented, not absent.

Capabilities
Architecture model
OpenAI EvalsOpen source CLI
RagasOpen source CLI
LLM as a judge prompt grading framework
OpenAI Evals
Ragas
Specialized rag metrics faithfulness context relevance
OpenAI Evals-
Ragas-
Deterministic regex and json schema assertions
OpenAI Evals
Ragas-
Synthetic test dataset generation from documents
OpenAI Evals
Ragas
Ci cd github actions pipeline blocking gates
OpenAI Evals
Ragas-
Red teaming and adversarial vulnerability scanning
OpenAI Evals-
Ragas-
Multi model side by side ab regression testing
OpenAI Evals-
Ragas-
Human in the loop hitl annotation UI
OpenAI Evals-
Ragas-
Dashboard analytics for metric drift over time
OpenAI Evals-
Ragas-
SOC2 type ii
OpenAI Evals-
Ragas-
Mit or apache permissive oss license
OpenAI Evals
Ragas-
Pricing model
OpenAI EvalsFree open source
RagasFree open source

What each one is

The product in its own terms, so the numbers below have context.

OpenAI Evals

A framework that lets developers create and run evaluations to measure LLM performance, providing both pre-built benchmarks and tools to write custom tests tailored to specific use cases without requiring proprietary evaluation infrastructure.

Independently observed

Ragas

A Python-based framework that evaluates RAG applications through automatic metrics covering faithfulness, relevance, and recall. Includes tools to synthetically generate test datasets customized for specific use cases, enabling developers to assess LLM application performance at both component and end-to-end levels.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

OpenAI Evals

FreeFree tier

Free and open-source

as of verify ↗

Ragas

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
OpenAI Evals
Ragas
CLI
OpenAI Evals
Ragas
Deployment
Cloud / SaaS
OpenAI Evals
Ragas
Self-hosted
OpenAI Evals
Ragas

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

OpenAI Evals

3 total
  • OpenAI API
  • Snowflake
  • GitHub
Independently observed

Ragas

3 total
  • LlamaIndex
  • LangSmith
  • OpenAI
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.