P
weft · Production library run 2
29.9Library score
Pass rate64.2%
Simplicity55.6
Problems $$18.09
Implementers use the real production library (chumsky).
ImplementerPass rateSimplicityCostScore
DeepSeek V4.1 Flash · mini-SWE46.8%49.9$1.80
GLM 5.3 Flash · mini-SWE70.5%59.4$13.01
GPT-5.6 Luna · Codex75.2%57.6$3.27
ProblemDeepSeek V4.1 FlashGLM 5.3 FlashGPT-5.6 LunaMean
Click a problem to see how each solution's score is built.