r/AI_Agents: Developer Benchmarks GPT-5, Claude Opus 4.8, DeepSeek, and Qwen on 50 Coding Tasks — Chinese Models Now 3–10× Cheaper, Economics Overtaking Quality as 2026's AI Story

A developer who ran 50 structured coding tasks across GPT-5, Claude Opus 4.8, DeepSeek, and Qwen found Chinese models deliver competitive output at 3–10× lower token cost, arguing that 2026's real AI story is economic disruption rather than capability gaps. Per-task cost breakdowns show that for typical production coding workflows, Chinese open-weight and API models now represent the economically rational default unless frontier-model reasoning depth is specifically required.