MIT Technology Review: AI Model Customization Shift Is an Architectural Imperative as Frontier Capability Gains Flatten

MIT Technology Review·medium signal

MIT Technology Review argues that the era of massive 10x reasoning and coding capability jumps between model generations has flattened into incremental gains, making AI model customization — fine-tuning, RAG, prompt engineering, domain adaptation — an architectural imperative rather than an optimization. The piece frames this as a fundamental shift: organizations that treat model customization as an afterthought will fall behind those that build it into their core architecture. Practical implications for builders choosing between frontier models and customized smaller models.