Z.ai: GLM 5.3 FlashX

Z.ai: GLM 5.3

GLM-5.3 is Zhipu AI’s next-generation flagship text model, built on GLM-5.2 and enhanced through large-scale, long-horizon task post-training. It delivers an approximately 50% improvement in coding experience, autonomously handling complex project development, debugging, validation, and delivery. It also supports a 1-million-token context window, up to 128K-token outputs, tool calling, and MCP, with strong performance in cybersecurity tasks such as code review and vulnerability detection.

Z.ai: GLM 5.3 Flash

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while reducing compute overhead.

Z.ai: GLM 5.3 Prime

GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× higher output throughput through inference acceleration. It supports text input and output with a 1M-token context window and up to 128K output tokens, and is optimized for coding and agentic workloads, including long-horizon multi-turn agent orchestration, real-time conversation, and streaming code generation.

Z.ai: GLM 5.2

GLM-5.2 supports a larger context window and output length, with up to 1M context and 128K output tokens. It adds streaming output for tool calls via `tool_stream=true`, enabling real-time access to tool call arguments. Like the GLM-4.7 series, it supports deep thinking with `thinking={ type: "enabled" }`, where thinking is enforced once enabled, and introduces `reasoning_effort` to control reasoning intensity under chain-of-thought mode. It also delivers stronger coding performance and more advanced reasoning capabilities.

Z.ai: GLM 5.1

GLM-5.1 is Zai’s new-generation flagship foundation model, designed for Agentic Engineering, capable of providing reliable productivity in complex system engineering and long-range Agent tasks. In terms of Coding and Agent capabilities, GLM-5 has achieved state-of-the-art (SOTA) performance in open source, with its usability in real programming scenarios approaching that of Claude Opus 4.5.

Z.ai: GLM 5V Turbo

GLM-5V-Turbo is Zhipu’s first multimodal coding base model, designed for vision-based programming tasks. It can natively process multimodal inputs such as images, video, and text, and excels at long-horizon planning, complex programming, and action execution. It is deeply adapted to Agent workflows and can closely collaborate with Agents like Claude Code and OpenClaw to complete a full closed loop of “understanding the environment → planning actions → executing tasks.