weft · GPT-6 Astra run 3
29.1Library score
Pass rate76.7%
Simplicity52.2
Problems $$10.21
Library $$3.69
The library
weft · designed by GPT-6 Astra (Codex)1,852 source lines
ImplementerPass rateSimplicityCostScore
DeepSeek V4.1 Flash · mini-SWE82.8%49.7$2.85
GLM 5.3 Flash · mini-SWE61.6%61.4$5.03
GPT-5.6 Luna · Codex79.3%49.3$2.34
ProblemDeepSeek V4.1 FlashGLM 5.3 FlashGPT-5.6 LunaMean
bag-rules26.632.928.329.3ninja-build25.90.034.520.1mail-addresses36.50.046.127.6property-paths42.80.057.533.4formula-ledger32.440.925.432.9record-spans63.587.549.266.7block-events54.126.938.839.9command-errors31.80.027.219.6route-tags64.80.130.131.7template-audit36.60.03.513.4grammar-inventory27.129.625.327.3grammar-trace50.20.037.929.4nesting-guard1.20.025.28.8unicode-spans27.323.332.427.6