Best Pydantic Evals Alternatives in 2026

20 apps from AI LLM evaluation tools ranked against Pydantic Evals on the same published basis.

  1. 1Pydantic Evals vs DeepEval
  2. 2Pydantic Evals vs Promptfoo
  3. 3Pydantic Evals vs Opik
  4. 4Pydantic Evals vs Langfuse
  5. 5Pydantic Evals vs Braintrust
  6. 6Pydantic Evals vs Confident AI
  7. 7Pydantic Evals vs Galileo
  8. 8Pydantic Evals vs Weights & Biases
  9. 9Pydantic Evals vs Vellum
  10. 10Pydantic Evals vs Maxim AI
  11. 11Pydantic Evals vs Evidently AI
  12. 12Pydantic Evals vs Giskard
  13. 13Pydantic Evals vs Rhesis AI
  14. 14Pydantic Evals vs LangSmith
  15. 15Pydantic Evals vs NVIDIA NeMo Evaluator
  16. 16Pydantic Evals vs Arize Phoenix
  17. 18Pydantic Evals vs UpTrain
  18. 19Pydantic Evals vs LangWatch
  19. 20Pydantic Evals vs OpenAI Evals
  20. 21Pydantic Evals vs HoneyHive

Pydantic Evals alternatives compared

#AppScoreFree planFromRuns on
1DeepEval8.1Free planFreeLinux, Mac, self-hosted, Windows
2Promptfoo8.0Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
3Opik7.9Free plan$19/moAPI, Linux, self-hosted, Web
4Langfuse7.8Free plan$29/moAPI, self-hosted, Web
5Braintrust7.7Free plan$249/moAPI, self-hosted, Web
6Confident AI7.6Free plan$200/moAPI, self-hosted, Web
7Galileo7.6Free plan$100/moAPI, self-hosted, Web
8Weights & Biases7.6Free plan$60/moAPI, iOS, Linux, Mac, self-hosted, Web, Windows
9Vellum7.5Free plan$30/moAndroid, Browser, iOS, Mac, self-hosted, Web, Windows
10Maxim AI7.3Free plan$29/moAPI, self-hosted, Web
11Evidently AI7.2Free plan$80/moAPI, Linux, Mac, self-hosted, Web, Windows
12Giskard7.1Free planFreeAPI, Linux, self-hosted, Web
13Rhesis AI7.1Free planFreeAPI, Linux, self-hosted, Web
14LangSmith6.8Free plan$39/moAPI, self-hosted, Web
15NVIDIA NeMo Evaluator6.8Free planFreeAPI, Linux, self-hosted
16Arize Phoenix6.7Free planFreeAPI, self-hosted, Web
18UpTrain6.3No—API, self-hosted, Web
19LangWatch6.2Free plan€29/moAPI, Linux, self-hosted, Web
20OpenAI Evals6.2No—API, self-hosted, Web
21HoneyHive6.1No—Web
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Questions about Pydantic Evals alternatives

What is the best alternative to Pydantic Evals?

DeepEval, number 1 in AI LLM evaluation tools with a score of 8.1 out of 10. The others here: Promptfoo, Opik, Langfuse and 16 more.

What is the best free alternative to Pydantic Evals?

DeepEval is the best-ranked alternative with a free plan. 17 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.