Kimi Code K2.6: Moonshot AI's Coding Model vs Claude Code

8.7 / 10 Benchmark Performance 9.5 Agentic Capabilities 9.0 Cost Efficiency 9.5 Instruction Following 7.2 Ecosystem & Tooling 7.5 Moonshot AI shipped Kimi Code K2.6 as generally available on April 20, 2026 — one week after beta testers ran the Code Preview. The release is significant: K2.6 tops SWE-Bench Pro at 58.6%, outscoring GPT-5.4 (57.7%) and Claude Opus 4.6 (53.4%) on the benchmark that comes closest to measuring real-world GitHub issue resolution. It does this while running fully