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CATCH #1709 DETECTED SEP 28, 2026 22:20 UTC
THE CATCHscore 8/10
EXHIBIT 1709 · FLASH
Sep 28, 2026 22:20 UTC lmarena lmarena.ai/leaderboard
Two new DeepSeek models, 'deepseek-v4-pro-high-fireworks' and 'contenders/deepseek-v4-pro-high-fireworks', have appeared on the LMArena leaderboard.

READY TO POST:

deepseek-v4-pro-high-fireworks just hit the lmarena leaderboard! looks like something new is coming.

seeing 'contenders/deepseek-v4-pro-high-fireworks' on lmarena. deepseek might be gearing up for a release soon.

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

[named / preview] (2)
  + contenders/deepseek-v4-pro-high-fireworks
  + deepseek-v4-pro-high-fireworks

caught by the 20-minute sweep · the live wire · all receipts

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