DeepEval vs Ragas vs Promptfoo vs Braintrust

A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.

	DeepEval Pytest-style unit testing for LLM outputs, 50+ metrics, Apache 2.0 Visit	Ragas Widely adopted open-source framework for evaluating RAG pipelines with... Visit	Promptfoo MIT-licensed LLM eval and red-teaming CLI, now owned by OpenAI Visit	Braintrust LLM evaluation and prompt management for production Visit
RECATOOLS Score	8 / 10	7.5 / 10	8.1 / 10	7.5 / 10
Capability	8	—	8	8
Value for money	9	—	8.5	7
Ease of use	8	—	7.5	7
ASEAN readiness	6.5	—	6.5	6
API quality	7.5	—	8	8
Pricing	Open Source	Freemium	Freemium	Freemium
Free tier	—	Open-source library (Apache-2.0) is free; you pay only for evaluator model calls.	—	—
Paid from	—	Paid hosted platform (app.ragas.io) for dashboards and team features.	—	—
Has API	✓	✓	✓	✓
Open source	✓	✓	✓	✗
Free to use	✓	✓	✓	✓
Users	—	15K+ GitHub stars	—	—
Founded	—	2023	—	2023
Maker	—	Exploding Gradients	—	—
Verdict	DeepEval's whole pitch is that evaluating an LLM shouldn't require learning a new tool — if your team already writes pytest, you already know how to write a DeepEval test. That framing, plus Apache 2.0 licensing with no...	What this is for: Measuring the quality of RAG pipelines with faithfulness, relevancy, and context metrics, plus synthetic test-set generation. Who this is for: Developers and ML teams who need to quantify and regressio...	Promptfoo built its reputation as the eval tool developers actually reach for instead of rolling their own harness — YAML configs, 50-plus provider support, and a red-teaming mode that generates jailbreak and prompt-inje...	Braintrust is an evaluation, observability and prompt-iteration platform for teams building LLM-powered products, offering systematic evals, logging, datasets, scoring and a playground that bring engineering rigour to ot...
	Full review →	Full review →	Full review →	Full review →

← Back to AI Directory

Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.