#3 AI Lab End of October (Style Control On) prediction

The latest reading of the deciding board puts Meta second, not third. The arena.ai Text Arena Overall leaderboard with style control on, in Models view, was read on October 18, 2026, from data published October 15. It shows Google's Gemini 4 Argon (High) first at 1524 and Meta's Muse Wonder (Max) second at 1509. Anthropic's Claude Opus 5.5 (High) is third at 1508. That is why the forecast leans against Meta finishing third. On this snapshot Meta sits above Anthropic, so it would need to be overtaken by Anthropic or another lab and not by two. Its lead is one point, so the gap is thin. The forecast still leans against this outcome, because the fixed reading has Meta holding second place. Anthropic is crowded around Meta. Claude Fable 5 (High) is fourth at 1504 and Claude Opus 4.6 (High) is fifth at 1503. A fresh release or a reshuffled score could move that cluster past Meta. Some caution applies. I did not observe the Labs-view Lab Rank column, which the market rules name first. The Models-view ordering is the fallback if lab rankings are ambiguous. Reports also show that style control reorders the list by discounting answer length and formatting, so raw scores need careful reading. Leaderboard entries only appear once a model meets Arena's public-release and policy requirements. The thing to watch is the Meta and Anthropic gap on the October 31 check at 12:00 PM ET. If Anthropic's top model passes Muse Wonder (Max) and no other lab does, the picture changes.