GLM
Gain production-grade API access to Z.ai’s (Zhipu AI) flagship foundation model, GLM-5.3. Leveraging the efficient MoE architecture combined with massive post-training scaling across high-complexity, long-horizon environments, GLM-5.3 delivers a massive leap in reasoning intelligence and compute efficiency. It demonstrates frontier capabilities in autonomous software engineering, complex code generation, terminal execution (Terminal-Bench), and defensive cybersecurity threat analysis.
All Models

GLM 5.3 Flash
GLM 5.3 Flash is Zhipu AI's next-generation high-speed, lightweight workhorse model. Engineered for high-throughput, low-latency agentic workflows, code generation, and multimodal tasks, it features native long context support with significantly enhanced inference throughput and extreme cost-efficiency. It excels in function calling, instruction following, logical reasoning, and multilingual understanding—ideal for enterprise API integrations, real-time interactive apps, and automated workflows.

GLM 5.2
GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering, and complex multi-step automation. Reasoning efforts high and xhigh are supported; xhigh maps to max reasoning. It is particularly strong at coding and tool use across long-running tasks, able to maintain engineering context and follow standards consistently through a full development workflow, from requirements to multi-platform deployment, in a single task.

GLM 5.3
GLM 5.3 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering, and complex multi-step automation. Reasoning efforts high and xhigh are supported; xhigh maps to max reasoning. It is particularly strong at coding and tool use across long-running tasks, able to maintain engineering context and follow standards consistently through a full development workflow, from requirements to multi-platform deployment, in a single task.
GLM Models API Pricing Details
| Model | Pricing (USD) | Our Pricing (USD) | Discount | |
|---|---|---|---|---|
| GLM 5.3 Flash | $0.15/M Tokens | Start from$0.15/M Tokens | — | |
| GLM 5.2 | $1.4/M Tokens | Start from$0.84/M Tokens | -40% | |
| GLM 5.3 | $1.4/M Tokens | Start from$0.84/M Tokens | -40% |