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CATCH #1506 DETECTED SEP 21, 2026 21:18 UTC
THE CATCHscore 9/10
EXHIBIT 1506 · FLASH
Sep 21, 2026 21:18 UTC lmarena lmarena.ai/leaderboard
A new anonymous model, "mimo-v2-6-pro-mw0j", appeared on the LMArena leaderboard, suggesting a stealth release or unannounced testing.

READY TO POST:

looks like lmarena just added a new anonymous model, "mimo-v2-6-pro-mw0j", to their leaderboard. could be an unannounced model getting tested.

a new stealth model, "mimo-v2-6-pro-mw0j", just popped up on lmarena. curious to see who's behind this one and what it can do.

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

[anonymous codenames — likely stealth] (1)
  + mimo-v2-6-pro-mw0j

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