Coinbase 微调 Qwen3.5-9B 做欺诈检测，Onramp 实验欺诈交易减少 30%

Coinbase has fine-tuned an open-weight AI model on its proprietary transaction data to outperform a leading closed-source model in fraud detection, with better detection scores and lower serving latency. In a three-part technical series, the exchange argued that companies can get better results from specialized models…