Coinbase 微调 Qwen3.5-9B 做欺诈检测，性能超越前沿模型

Coinbase has spent the past stretch teaching a relatively small AI model to catch fraudsters. According to the exchange, the small model now does that job better than some of the most expensive AI systems on the market. In its “Owning Intelligence” blog series, published October 7-8, 2026, Coinbase said a fine-tuned ve…