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CATCH #1604 DETECTED SEP 24, 2026 02:31 UTC
THE CATCHscore 8/10
EXHIBIT 1604 · FLASH
Sep 24, 2026 02:31 UTC lmarena lmarena.ai/leaderboard
A new model, claude-opus-5.5-max-vertex-webdev, has appeared on the LMArena leaderboard, potentially indicating an upcoming release.

READY TO POST:

looks like a new claude-opus-5.5-max-vertex-webdev model just popped up on lmarena. might be an early peek at something big.

keep an eye on claude-opus-5.5-max-vertex-webdev, it's now on the lmarena leaderboard. could be weeks away from launch.

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

[named / preview] (1)
  + claude-opus-5.5-max-vertex-webdev

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