Kimi K3's 2.8T Open Weights vs Claude Opus 5: The Benchmark Showdown That Shook August 2026
Moonshot AI's Kimi K3 2.8T open-weight model matches Claude Opus 5 on coding benchmarks at a fraction of the cost. This deep dive analyzes the head-to-head comparison across Terminal-Bench, SWE-bench, token economics, and production deployment trade-offs.