Z.ai Launches GLM-5.2 With a Usable 1M-Token Context, Two Thinking-Effort Levels, and No Benchmarks at Launch

Z.ai has launched GLM-5.2, featuring a usable context window of 1 million tokens and two levels of thinking effort: High and Max. The model integrates with Claude Code, Cline, and OpenClaw via an Anthropic-compatible endpoint, though it lacks benchmark results at launch; open weights are expected to be released next week. This advancement is significant for practitioners as it enables handling of extensive context in applications, potentially enhancing performance in complex tasks.