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AI coding agents still need human cleanup on nearly three out of four tasks in a real-world test

Technology · en

AI coding agents still need human cleanup on nearly three out of four tasks in a real-world test

The Decoder · Nov 8, 2026, 9:50 AM UTC

Alibaba's new coding-agent benchmark, Co-Design Bench, tests AI agents on real user requests that already tripped them up in practice. Even GPT-6 Astra, the top performer, fully solves only 26.4 percent of tasks. On older benchmarks, the same models score above 99 percent.…