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CATCH #913 DETECTED AUG 22, 2026 02:29 UTC
THE CATCHscore 9/10
EXHIBIT 913 · FLASH
Aug 22, 2026 02:29 UTC lmarena lmarena.ai/leaderboard
Two new models, including a potentially stealth model codenamed "august26-chatbot1-fmme", appeared on the LMArena leaderboard. Another model, "qwen3.8-27b-code-webdev", was also added.

READY TO POST:

lmarena just added a new model called "august26-chatbot1-fmme" to their leaderboard, looks like a stealth test. curious if this is an unannounced model.

another new one on lmarena, "qwen3.8-27b-code-webdev", alongside an anonymous test model. always interesting to see what's being benchmarked before launch.

EVIDENCE — the receipts
LMArena: 2 new models appeared on the leaderboard
(labs test unreleased models here — often weeks before launch)

[anonymous codenames — likely stealth] (1)
  + august26-chatbot1-fmme

[named / preview] (1)
  + qwen3.8-27b-code-webdev

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