GLM5.1
Z.aiChatZ.ai's open-source flagship LLM with 754B MoE architecture, purpose-built for agentic coding and long-horizon tasks, capable of 8-hour autonomous execution and topping SWE-Bench Pro.
Z.aiZ.ai GLM APIs
Build long-horizon coding, reasoning, and agent workflows with the GLM models currently available through LinkModel.
Provider overview
About Z.ai and the GLM family
Z.ai develops the open-weight GLM model family for reasoning, coding, agents, and general language work. Its official catalog may include models that are not yet listed on LinkModel; this page only presents the Z.ai models currently available through LinkModel's live catalog.
Explore Z.ai GLM APIs
Compare the Z.ai language models currently listed on LinkModel. The live catalog controls availability and pricing; open each model page to confirm its active context limit and request schema before production use.
3 models listed
GLM reasoning, coding, and agent APIs
Compare live Z.ai models for long-context reasoning, software engineering, tool use, structured output, and autonomous agent workflows.
GLM5.1Z.aiChat
GLM5.3Z.aiChatZ.ai’s latest flagship text model for complex software engineering and long-horizon agents supports up to a 1M-token context, 128K-token output, three reasoning-effort levels, tool calling, structured output, and context caching, with stronger performance and token efficiency across coding, terminal, and multi-step professional tasks.
GLM5.2Z.aiChatZ.ai’s flagship text model for long-horizon work supports up to a 1M-token context and 128K-token output, with adjustable reasoning, tool calling, structured output, and context caching for project-scale code understanding, complex refactoring, and persistent agent workflows.
Compare GLM models and API pricing
Use GLM-5.1 when a currently listed LinkModel workload needs long-horizon coding, iterative engineering, or tool-driven reasoning. Recommendations only appear when the matching model is live in the catalog.
GLM reasoning, coding, and agent APIs
Best for
Z.ai designed GLM-5.1 for sustained engineering tasks that move from planning and execution through testing, correction, and iterative optimization.
Key capabilities
long-horizon execution · agentic coding · tool calls · structured output
Official source ↗PricingView pricing
What can you build with Z.ai APIs on LinkModel?
Use live GLM models for autonomous software engineering, complex information workflows, tool-driven agents, and structured production tasks from one account.
Autonomous software engineering
Run multi-step coding workflows that plan changes, inspect results, test implementations, and revise strategies over extended sessions.
Tool-driven operational agents
Build agents that reason over a goal and invoke supported external tools, while your application owns permissions, retries, and safety controls.
Complex information workflows
Use long-context reasoning for research, document synthesis, structured reports, and multi-turn tasks after confirming the active model limits.
Why run Z.ai models through LinkModel?
Access supported GLM models alongside other language providers while centralizing credentials, usage, and pay-as-you-go billing.
One key for live GLM models
Use one LinkModel API key for supported Z.ai models and future versions as they enter the live catalog.
Compare language providers in one place
Evaluate GLM alongside Kimi, DeepSeek, Claude, GPT, Gemini, and other live language families without maintaining another provider billing flow.
Centralized usage and billing
Track requests and pay-as-you-go charges from one account while keeping the selected model explicit in each integration.
Integrate a Z.ai GLM API
Use one LinkModel credential to call an available GLM model and keep model access, usage, and billing in the same workflow.
Authenticate with one API key
Create a LinkModel API key and use it to authenticate requests for Z.ai models enabled for your account.
Choose a live GLM model
Select the model for your workload, then open its LinkModel page to confirm the current identifier, price, context limit, and request schema.
Send and monitor the request
Submit the supported message payload, handle streaming or structured output only when documented by the live schema, and monitor usage from the same account.
Z.ai model guides
glm api guideglm 5.1z ai apiopen weight coding modelcoding agent api
GLM API Guide: Pricing, Coding Power & When to Use GLM-5.1
2026-07-10
glm vs kimiglm 5.1kimi k2.6open weight coding modelcoding agent api
GLM vs Kimi: Which Open-Weight Coding Model Wins in 2026?
2026-07-10
open source llm apiopen weight llmdeepseek glm kimi minimaxself host llmcheap open model
Best Open-Source LLM API in 2026: DeepSeek, GLM, Kimi, MiniMax
2026-07-10
best coding llm apiai coding modelcoding agent apiswe benchcode generation api
Best LLM API for Coding in 2026: Agents, Cost & Benchmarks
2026-07-10
FAQ
Frequently asked questions.
Sources and editorial information
Editorial review
Model capabilities and selection guidance are reviewed against the official Z.ai sources listed here.
Editorial content reviewed: September 1, 2026
Z.ai and its model names belong to their respective owners. LinkModel is an independent API aggregation platform and does not imply a formal relationship.