Published battle records

Battles

One published battle is one qualifying evaluation group. Pairwise comparisons are on the battle page. Repeated missing difficulty is not listed as a result.

Newest published battleEngineering
5/ 5Claude Sonnet 5
VS
5/ 5GPT-5.6 Terra
Claude Sonnet 5, GPT-5.6 Terra share the highest scoreSep 10, 2026 00:44:43 UTC

151 battles. Newest published time first.

  1. View Engineering battle, Sep 10, 2026 00:44:43 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  2. View Engineering battle, Sep 10, 2026 00:23:32 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  3. View Engineering battle, Sep 10, 2026 00:01:26 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  4. View Engineering battle, Sep 9, 2026 23:37:13 UTC
    4/ 5Claude Sonnet 5
    VS
    4/ 5GPT-5.6 Terra

    Engineering

    Winners4 of 5

    1. Claude Sonnet 54of 5
    2. GPT-5.6 Terra4of 5
  5. View Engineering battle, Sep 9, 2026 23:14:40 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  6. View Engineering battle, Sep 9, 2026 22:56:07 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  7. View Engineering battle, Sep 9, 2026 22:41:04 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  8. View Engineering battle, Sep 9, 2026 22:24:07 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  9. View Engineering battle, Sep 9, 2026 22:06:38 UTC
    5/ 5Claude Sonnet 5
    VS
    4/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra4of 5
  10. View Engineering battle, Sep 9, 2026 21:47:33 UTC
    2/ 5GPT-5.6 Terra
    VS
    5/ 5Grok 4.6

    Engineering

    Winner5 of 5

    1. Grok 4.65of 5
    2. GPT-5.6 Terra2of 5
  11. View Engineering battle, Sep 9, 2026 21:40:15 UTC
    5/ 5Claude Sonnet 5
    VS
    4/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra4of 5
  12. View Engineering battle, Sep 9, 2026 20:51:23 UTC
    5/ 5Claude Sonnet 5
    VS
    4/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra4of 5
  13. View Engineering battle, Sep 9, 2026 20:48:11 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  14. View Engineering battle, Sep 9, 2026 20:25:54 UTC
    5/ 5Claude Sonnet 5
    VS
    4/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra4of 5
  15. View Engineering battle, Sep 9, 2026 18:21:23 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  16. View Engineering battle, Sep 9, 2026 16:48:22 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  17. View Engineering battle, Sep 9, 2026 16:16:54 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  18. View Engineering battle, Sep 9, 2026 08:59:23 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  19. View Engineering battle, Sep 9, 2026 08:48:20 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  20. View Engineering battle, Sep 9, 2026 08:32:31 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  21. View Engineering battle, Sep 9, 2026 08:19:41 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  22. View Engineering battle, Sep 9, 2026 08:07:38 UTC
    5/ 5Claude Sonnet 5
    VS
    4/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra4of 5
  23. View Engineering battle, Sep 9, 2026 07:33:29 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  24. View Engineering battle, Sep 9, 2026 05:05:20 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  25. View Engineering battle, Sep 9, 2026 04:28:55 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  26. View Engineering battle, Sep 8, 2026 06:59:39 UTC
    4/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winner5 of 5

    1. GPT-5.6 Terra5of 5
    2. Claude Sonnet 54of 5
  27. View Engineering battle, Sep 8, 2026 05:08:38 UTC
    3/5
    2/5
    4/5

    Engineering

    Winner4 of 5

    1. GPT-5.6 Luna4of 5
    2. Claude Haiku 4.53of 5
    3. Nemotron 3.5 Lightning 30B A3B2of 5
  28. View Engineering battle, Sep 8, 2026 03:48:15 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  29. View Engineering battle, Sep 8, 2026 03:25:04 UTC
    4/ 5Claude Haiku 4.5
    VS
    3/ 5GPT-5.6 Luna

    Engineering

    Winner4 of 5

    1. Claude Haiku 4.54of 5
    2. GPT-5.6 Luna3of 5
  30. View Engineering battle, Sep 8, 2026 02:19:43 UTC
    5/ 5Claude Sonnet 5
    VS
    5/ 5GPT-5.6 Terra

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
  31. View Engineering battle, Sep 8, 2026 02:15:38 UTC
    5/5
    5/5
    4/5

    Engineering

    Winners5 of 5

    1. Claude Sonnet 55of 5
    2. GPT-5.6 Terra5of 5
    3. Grok 4.64of 5

Previous

Difficulty is published only when every score in the battle recorded the same low, medium, high, or critical label. Otherwise it is not recorded. Prompts and code are not published.