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Best Arena (formerly Chatbot Arena) Alternatives in 2026

Updated

20 apps from LLM evaluation tools ranked against Arena (formerly Chatbot Arena) on the same published basis.

  1. 1
    DeepEval Free plan LinuxMacself-hostedWin Free6.6
    Arena (formerly Chatbot Arena) vs DeepEval
  2. 2
    Promptfoo Free plan apiLinuxMacself-hostedWeb Free6.6
    Arena (formerly Chatbot Arena) vs Promptfoo
  3. 3
    garak Free plan LinuxMacself-hostedWin Free6.5
    Arena (formerly Chatbot Arena) vs garak
  4. 4
    Giskard Free plan apiLinuxself-hostedWeb Free6.5
    Arena (formerly Chatbot Arena) vs Giskard
  5. 5
    Whisper Free plan LinuxMacself-hostedWin Free6.5
    Arena (formerly Chatbot Arena) vs Whisper
  6. 7
    Braintrust Free plan apiself-hostedWeb $249/mo6.4
    Arena (formerly Chatbot Arena) vs Braintrust
  7. 8
    CloudSploit Free plan Linuxself-hostedWeb Free6.4
    Arena (formerly Chatbot Arena) vs CloudSploit
  8. 9
    Confident AI Free plan apiself-hostedWeb $200/mo6.4
    Arena (formerly Chatbot Arena) vs Confident AI
  9. 10
    Galileo Free plan apiself-hostedWeb $100/mo6.4
    Arena (formerly Chatbot Arena) vs Galileo
  10. 11
    HELM Free plan apiself-hostedWeb Free6.4
    Arena (formerly Chatbot Arena) vs HELM
  11. 12
    LM Evaluation Harness Free plan apiLinuxself-hosted Free6.4
    Arena (formerly Chatbot Arena) vs LM Evaluation Harness
  12. 13
    Maxim AI Free plan apiself-hostedWeb $29/mo6.4
    Arena (formerly Chatbot Arena) vs Maxim AI
  13. 14
    OpenCompass Free plan apiLinuxself-hosted Free6.4
    Arena (formerly Chatbot Arena) vs OpenCompass
  14. 15
    Parea AI Free plan apiself-hostedWeb $150/mo6.4
    Arena (formerly Chatbot Arena) vs Parea AI
  15. 16
    PyRIT Free plan apiLinuxself-hostedWeb Free6.4
    Arena (formerly Chatbot Arena) vs PyRIT
  16. 17
    Inspect AI Free plan apiextension Free6.3
    Arena (formerly Chatbot Arena) vs Inspect AI
  17. 18
    RAGChecker Free plan self-hosted Free6.3
    Arena (formerly Chatbot Arena) vs RAGChecker
  18. 19
    TruLens Free plan apiself-hosted Free6.3
    Arena (formerly Chatbot Arena) vs TruLens
  19. 20
    LiveBench LinuxMacself-hostedWebWin 5.7
    Arena (formerly Chatbot Arena) vs LiveBench
  20. 21
    SWE-bench apiLinuxMacself-hostedWeb 5.7
    Arena (formerly Chatbot Arena) vs SWE-bench

Arena (formerly Chatbot Arena) alternatives compared

#AppScoreFree planFromRuns on
1DeepEval6.6Free planFreeLinux, Mac, self-hosted, Windows
2Promptfoo6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
3garak6.5Free planFreeLinux, Mac, self-hosted, Windows
4Giskard6.5Free planFreeAPI, Linux, self-hosted, Web
5Whisper6.5Free planFreeLinux, Mac, self-hosted, Windows
7Braintrust6.4Free plan$249/moAPI, self-hosted, Web
8CloudSploit6.4Free planFreeLinux, self-hosted, Web
9Confident AI6.4Free plan$200/moAPI, self-hosted, Web
10Galileo6.4Free plan$100/moAPI, self-hosted, Web
11HELM6.4Free planFreeAPI, self-hosted, Web
12LM Evaluation Harness6.4Free planFreeAPI, Linux, self-hosted
13Maxim AI6.4Free plan$29/moAPI, self-hosted, Web
14OpenCompass6.4Free planFreeAPI, Linux, self-hosted
15Parea AI6.4Free plan$150/moAPI, self-hosted, Web
16PyRIT6.4Free planFreeAPI, Linux, self-hosted, Web
17Inspect AI6.3Free planFreeAPI, Browser
18RAGChecker6.3Free planFreeself-hosted
19TruLens6.3Free planFreeAPI, self-hosted
20LiveBench5.7Linux, Mac, self-hosted, Web, Windows
21SWE-bench5.7API, Linux, Mac, self-hosted, Web, Windows
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Questions about Arena (formerly Chatbot Arena) alternatives

What is the best alternative to Arena (formerly Chatbot Arena)?

DeepEval, number 1 in LLM evaluation tools with a score of 6.6 out of 10. The others here: Promptfoo, garak, Giskard and 16 more.

What is the best free alternative to Arena (formerly Chatbot Arena)?

DeepEval is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.