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June 2026: GPT-5.6 launches with 1.5M token context and Agent capabilities; GLM-5.2 open sources under MIT, outperforming GPT-5.5 in coding benchmarks. Developer-focused analysis of both models.
ZCode is not simply a new model competing with Claude Code or Codex. It is Z.ai's Agentic Development Environment focused on long-running tasks, context retention, permission control, and reviewable workflows. This article explains ZCode's real positioning, how it differs from Claude Code and OpenAI Codex, and when developers should consider using it.