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Best Arena (formerly Chatbot Arena) Alternatives in 2026

Updated

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

  1. 1
    Maxim AI Free plan apiself-hostedWeb $29/mo7.7
    Arena (formerly Chatbot Arena) vs Maxim AI
  2. 2
    Promptfoo Free plan apiLinuxMacself-hostedWeb Free7.4
    Arena (formerly Chatbot Arena) vs Promptfoo
  3. 3
    DeepEval Free plan LinuxMacself-hostedWin Free7.3
    Arena (formerly Chatbot Arena) vs DeepEval
  4. 4
    Giskard Free plan apiLinuxself-hostedWeb Free7.2
    Arena (formerly Chatbot Arena) vs Giskard
  5. 5
    Whisper Free plan LinuxMacself-hostedWin Free7.2
    Arena (formerly Chatbot Arena) vs Whisper
  6. 7
    Braintrust Free plan apiself-hostedWeb $249/mo7.1
    Arena (formerly Chatbot Arena) vs Braintrust
  7. 8
    Galileo Free plan apiself-hostedWeb $100/mo7.1
    Arena (formerly Chatbot Arena) vs Galileo
  8. 9
    Parea AI Free plan apiself-hostedWeb $150/mo7.1
    Arena (formerly Chatbot Arena) vs Parea AI
  9. 10
    PyRIT Free plan apiLinuxself-hostedWeb Free7.1
    Arena (formerly Chatbot Arena) vs PyRIT
  10. 11
    CloudSploit Free plan Linuxself-hostedWeb Free7.0
    Arena (formerly Chatbot Arena) vs CloudSploit
  11. 12
    OpenCompass Free plan apiLinuxself-hosted Free7.0
    Arena (formerly Chatbot Arena) vs OpenCompass
  12. 13
    Confident AI Free plan apiself-hostedWeb $200/mo6.9
    Arena (formerly Chatbot Arena) vs Confident AI
  13. 14
    garak Free plan LinuxMacself-hostedWin Free6.9
    Arena (formerly Chatbot Arena) vs garak
  14. 15
    HELM Free plan apiself-hostedWeb Free6.9
    Arena (formerly Chatbot Arena) vs HELM
  15. 16
    Inspect AI Free plan apiextension Free6.9
    Arena (formerly Chatbot Arena) vs Inspect AI
  16. 17
    TruLens Free plan apiself-hosted Free6.9
    Arena (formerly Chatbot Arena) vs TruLens
  17. 18
    LiveBench LinuxMacself-hostedWebWin 6.8
    Arena (formerly Chatbot Arena) vs LiveBench
  18. 19
    SWE-bench apiLinuxMacself-hostedWeb 6.8
    Arena (formerly Chatbot Arena) vs SWE-bench
  19. 20
    LM Evaluation Harness Free plan apiLinuxself-hosted Free6.7
    Arena (formerly Chatbot Arena) vs LM Evaluation Harness
  20. 21
    RAGChecker Free plan self-hosted Free6.6
    Arena (formerly Chatbot Arena) vs RAGChecker

Arena (formerly Chatbot Arena) alternatives compared

#PlatformScoreFree planFromRuns on
1Maxim AI7.7Free plan$29/moAPI, self-hosted, Web
2Promptfoo7.4Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
3DeepEval7.3Free planFreeLinux, Mac, self-hosted, Windows
4Giskard7.2Free planFreeAPI, Linux, self-hosted, Web
5Whisper7.2Free planFreeLinux, Mac, self-hosted, Windows
7Braintrust7.1Free plan$249/moAPI, self-hosted, Web
8Galileo7.1Free plan$100/moAPI, self-hosted, Web
9Parea AI7.1Free plan$150/moAPI, self-hosted, Web
10PyRIT7.1Free planFreeAPI, Linux, self-hosted, Web
11CloudSploit7.0Free planFreeLinux, self-hosted, Web
12OpenCompass7.0Free planFreeAPI, Linux, self-hosted
13Confident AI6.9Free plan$200/moAPI, self-hosted, Web
14garak6.9Free planFreeLinux, Mac, self-hosted, Windows
15HELM6.9Free planFreeAPI, self-hosted, Web
16Inspect AI6.9Free planFreeAPI, Browser
17TruLens6.9Free planFreeAPI, self-hosted
18LiveBench6.8Linux, Mac, self-hosted, Web, Windows
19SWE-bench6.8API, Linux, Mac, self-hosted, Web, Windows
20LM Evaluation Harness6.7Free planFreeAPI, Linux, self-hosted
21RAGChecker6.6Free planFreeself-hosted
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Questions about Arena (formerly Chatbot Arena) alternatives

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

Maxim AI, number 1 in LLM evaluation tools with a score of 7.7 out of 10. The others here: Promptfoo, DeepEval, Giskard and 16 more.

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

Maxim AI 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 on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.