Many asked when we will have open weight model that is better than Opus. Well now we have it. Mimo is ranked #9 and Opus 4.5 is ranked #10.
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Xiami mimo-v2.5 pro MIT license surpasses Opus 4.5 on arena
Reddit r/LocalLLaMA / 4/29/2026
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Key Points
- The article claims that the Xiami Mimo-v2.5 pro open-weight model, released under an MIT license, has surpassed Opus 4.5 on an Arena AI leaderboard for coding (no style control).
- It reports that Mimo is currently ranked #9 while Opus 4.5 is ranked #10 in the referenced leaderboard category.
- The post responds to prior community requests for an open-weight model that performs better than Opus.
- The evidence cited is the current leaderboard standings and a direct link to the specific Arena AI leaderboard page.
submitted by /u/Terminator857
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