Kimi Legacy K2 Family End-of-Life Today: Migration to K2.5/K2.6 Required as Four Models Deprecated

Kimi AI·medium signal

Moonshot AI's legacy K2 family — K2 0905, K2 Turbo, K2 Thinking, and K2 0711 — reaches end-of-life today (May 25, 2026). Production traffic must migrate to K2.5 (lower per-token cost) or K2.6 (best quality for agent and coding workloads with visual input, thinking/non-thinking modes). K2.6 hit 56-59 on SWE-Bench Pro at roughly one-third of Claude Opus 4.7 inference cost, making it the recommended target for agentic coding workloads.