Claude vs ChatGPT in 2026: What Changed and What Matters
AI Brief: Claude Opus 4.6 and GPT-5.4 represent the current frontier of consumer AI. Claude leads in writing quality, long-context coherence, persona customization, and complex multi-file coding. GPT-5.4 leads in cost efficiency, computer use automation, and speed for high-throughput workloads. The architectural divide between Constitutional AI and RLHF shapes how each model reasons about safety,…