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CATCH #841 DETECTED AUG 19, 2026 19:14 UTC
THE CATCHscore 8/10
EXHIBIT 841 · FLASH
Aug 19, 2026 19:14 UTC lmarena lmarena.ai/leaderboard
LMArena has added a new model, glm-5.3, to its leaderboard, potentially signaling an upcoming release.

READY TO POST:

glm-5.3 just showed up on lmarena's leaderboard. could this be a new model on the horizon?

seeing glm-5.3 pop up on lmarena. interesting to watch what models hit their leaderboard before an official announcement.

EVIDENCE — the receipts
LMArena: 1 new model appeared on the leaderboard
(labs test unreleased models here — often weeks before launch)

[named / preview] (1)
  + glm-5.3

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