Open-source frontier coding model

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China Went HARD...
Matthew Bermanยท 2025-07-24 00:30
We have a new open-source frontier coding model that rivals Anthropic's Claude family of models. Quen 3 coder was just dropped and yes, it is as performant as Claude. Take a look at this.This is SWEBench verified and we have Quen 3 coder right here with 500 turns and Quen 3 coder standard right here. Now look over to the right. Claude sonnet 4 at 70.4% as compared to 69.6%.effectively the same. Same with Claude Sonnet 4 standard version, but it is a much bigger model. And here's Kimmy K2, but Quen 3 coder r ...