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Best Arena (formerly Chatbot Arena) Alternatives in 2026

Updated

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

  1. 1
    Promptfoo Free plan apiLinuxMacself-hostedWeb Free7.5
    Arena (formerly Chatbot Arena) vs Promptfoo
  2. 2
    DeepEval Free plan LinuxMacself-hostedWin Free7.4
    Arena (formerly Chatbot Arena) vs DeepEval
  3. 3
    Maxim AI Free plan apiself-hostedWeb $29/mo7.4
    Arena (formerly Chatbot Arena) vs Maxim AI
  4. 4
    Whisper Free plan LinuxMacself-hostedWin Free7.3
    Arena (formerly Chatbot Arena) vs Whisper
  5. 5
    Giskard Free plan apiLinuxself-hostedWeb Free7.2
    Arena (formerly Chatbot Arena) vs Giskard
  6. 6
    LiveBench LinuxMacself-hostedWebWin 7.2
    Arena (formerly Chatbot Arena) vs LiveBench
  7. 7
    SWE-bench apiLinuxMacself-hostedWeb 7.2
    Arena (formerly Chatbot Arena) vs SWE-bench
  8. 8
    Braintrust Free plan apiself-hostedWeb $249/mo7.1
    Arena (formerly Chatbot Arena) vs Braintrust
  9. 9
    Galileo Free plan apiself-hostedWeb $100/mo7.1
    Arena (formerly Chatbot Arena) vs Galileo
  10. 10
    garak Free plan LinuxMacself-hostedWin Free7.1
    Arena (formerly Chatbot Arena) vs garak
  11. 11
    Parea AI Free plan apiself-hostedWeb $150/mo7.1
    Arena (formerly Chatbot Arena) vs Parea AI
  12. 12
    PyRIT Free plan apiLinuxself-hostedWeb Free7.1
    Arena (formerly Chatbot Arena) vs PyRIT
  13. 14
    CloudSploit Free plan Linuxself-hostedWeb Free7.0
    Arena (formerly Chatbot Arena) vs CloudSploit
  14. 15
    Confident AI Free plan apiself-hostedWeb $200/mo7.0
    Arena (formerly Chatbot Arena) vs Confident AI
  15. 16
    HELM Free plan apiself-hostedWeb Free7.0
    Arena (formerly Chatbot Arena) vs HELM
  16. 17
    OpenCompass Free plan apiLinuxself-hosted Free7.0
    Arena (formerly Chatbot Arena) vs OpenCompass
  17. 18
    Inspect AI Free plan apiextension Free6.7
    Arena (formerly Chatbot Arena) vs Inspect AI
  18. 19
    LM Evaluation Harness Free plan apiLinuxself-hosted Free6.7
    Arena (formerly Chatbot Arena) vs LM Evaluation Harness
  19. 20
    Parler-TTS self-hostedWeb 6.7
    Arena (formerly Chatbot Arena) vs Parler-TTS
  20. 21
    Ragas apiLinuxself-hosted 6.7
    Arena (formerly Chatbot Arena) vs Ragas

Arena (formerly Chatbot Arena) alternatives compared

#ToolScoreFree planFromRuns on
1Promptfoo7.5Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2DeepEval7.4Free planFreeLinux, Mac, self-hosted, Windows
3Maxim AI7.4Free plan$29/moAPI, self-hosted, Web
4Whisper7.3Free planFreeLinux, Mac, self-hosted, Windows
5Giskard7.2Free planFreeAPI, Linux, self-hosted, Web
6LiveBench7.2Linux, Mac, self-hosted, Web, Windows
7SWE-bench7.2API, Linux, Mac, self-hosted, Web, Windows
8Braintrust7.1Free plan$249/moAPI, self-hosted, Web
9Galileo7.1Free plan$100/moAPI, self-hosted, Web
10garak7.1Free planFreeLinux, Mac, self-hosted, Windows
11Parea AI7.1Free plan$150/moAPI, self-hosted, Web
12PyRIT7.1Free planFreeAPI, Linux, self-hosted, Web
14CloudSploit7.0Free planFreeLinux, self-hosted, Web
15Confident AI7.0Free plan$200/moAPI, self-hosted, Web
16HELM7.0Free planFreeAPI, self-hosted, Web
17OpenCompass7.0Free planFreeAPI, Linux, self-hosted
18Inspect AI6.7Free planFreeAPI, Browser
19LM Evaluation Harness6.7Free planFreeAPI, Linux, self-hosted
20Parler-TTS6.7self-hosted, Web
21Ragas6.7API, Linux, self-hosted
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Questions about Arena (formerly Chatbot Arena) alternatives

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

Promptfoo, number 1 in LLM evaluation tools with a score of 7.5 out of 10. The others here: DeepEval, Maxim AI, Whisper and 16 more.

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

Promptfoo is the best-ranked alternative with a free plan. 16 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.