A reasoning model for complex software engineering and long-horizon tasks
GLM-5 is an engineering-focused large language model launched by Zhipu AI, with a focus on complex system development, code reasoning, and Agent tasks that require sustained planning. It is suitable not only for generating code snippets, but also for multi-turn collaboration around requirements, implementation, testing, and feedback.
Choose an available protocol for this model. OpenAI SDK uses a Base URL ending in /v1; Anthropic SDK uses the root URL. See each guide for protocol-specific parameters, tools and response formats.
Specifications and interface features
First, clarify this model's input and standard invocation method.
Invocation model
glm-5
Input and output
Text message input; assistant text output
Standard API
POST /v1/chat/completions; submit model and messages
Read results
choices[].message.content; usage is usage statistics
Multi-turn conversation
The application passes relevant history and the current question in messages
Model features
Complex systems engineering and long-horizon tasks; text input and output
Native model features are intended for model selection; this platform's input limits, available parameters, and billing are subject to this model's API and pricing. Use stream for continuous output in Chat Completions, and the client is responsible for saving message history.
Core capabilities
Learn what glm-5 can bring to your work.
From code snippets to system implementation
GLM-5 focuses on complex systems engineering and can organize implementation approaches around frontend, backend, and cross-module requirements. After providing interface constraints, existing code, and acceptance criteria, it is well suited to breaking down changes, explaining dependencies, and supplementing testing suggestions, making the output closer to a reviewable engineering plan rather than isolated code snippets.
Advance long-term tasks around feedback
For tasks that require multiple steps to complete, GLM-5 emphasizes planning and sustained progress. You can first define objectives, stage deliverables, and stopping conditions, then add test results or tool feedback each turn to let it adjust the next action. Combined with external state records and execution environments, it is suitable for building Agent workflows with checkpoints.
Organize materials into working documents
GLM-5's official demonstrations cover requirements documents, reports, and spreadsheet-style deliverables. When used in chat integrations, it can first generate sections, table content, and data-processing code, then hand them off to document tools to create files. It is suitable for organizing scattered materials into editable working drafts while preserving room for human review and formatting adjustments.
Applicable Scenarios
Start with specific tasks to identify where the model can be effective.
Cross-Module Bug Fixing
Provide error logs, relevant functions, API definitions, and reproduction steps, and let GLM-5 analyze the failure path and propose modification locations, candidate patches, and regression tests. Continue sending back results after running tests to ultimately produce a fix description and validation checklist. This is suitable for development tasks that require repeated diagnosis rather than a one-time completion.
From Requirements to an Implementation Plan
Provide product goals, business rules, the existing architecture, and acceptance requirements, and let GLM-5 produce module breakdowns, API drafts, implementation order, and risk dependencies. Code and test plans can then be further refined by module, creating a task list that facilitates development reviews and avoiding a direct jump from vague requirements to large blocks of implementation.
Report and Spreadsheet Drafts
Provide organized business materials, data definitions, and target readers, and let GLM-5 generate report structures, explanatory paragraphs, table fields, and calculation approaches. When Word, PDF, or Excel files are needed, connect the appropriate creation tools; before delivery, verify formulas, units, and key figures to ensure the content is consistent with the materials.
How to Choose This Model
Choose based on task complexity, input materials, and expected results.
How to Choose Between It and GLM-4.7
If the task involves frontend-backend coordination, complex code changes, or multi-turn tool feedback, consider evaluating GLM-5 first. Official comparisons emphasize improvements in these engineering tasks, but that does not mean it is better suited to every problem. For existing GLM-4.7 applications, use real tickets to compare patch quality, test pass results, and interaction overhead before deciding whether to migrate.
Do Not Treat Similar Names as the Same Version
glm-5, glm-5-turbo, and glm-5.1, glm-5.2, glm-5.3 are different model variants. Choose GLM-5 primarily for its positioning in complex engineering and long-running tasks; if requirements depend on specific capacity or control features of other versions, choose the corresponding variant. When switching models, prompts, tool interactions, and output performance should also be revalidated.
Getting Started: Break Product Requirements into a System Implementation Plan
Arrange the inputs first, then connect them to the appropriate application workflow.
Prepare Inputs
Prepare requirements, module structure, data models, API boundaries, and performance goals, and specify staged delivery conditions.
Organize Calls and Follow-Up Workflows
Explicitly select glm-5 in the Chat Completions request, organizing the context, materials, and output requirements for this request into messages. First use a clearly scoped task to check the response, then include actual review or test feedback in the next round of messages.
Practical Task Example: Break Product Requirements into a System Implementation Plan
Design tasks directly from the following inputs and acceptance priorities.
Suggested Tasks
Please break the requirements into verifiable engineering stages, listing module changes, data flows, testing, and rollback points; distinguish implementation results from items to be verified at each stage.
Key Checks
Check whether the plan covers exception paths and data consistency, and conduct acceptance by stage after implementation; code generation, tool execution, and deployment each have independent responsibilities.
Usage Boundaries
Before formal use, understand the output quality and capability scope.
GLM-5's engineering reasoning does not mean it automatically runs code. Tool-call information in chat completions needs to be executed by the application and have results returned; when terminals, repository modifications, or deployment are involved, execution environments, permission boundaries, and test checks should be configured. Do not treat a generated operation plan as a completed task.
GLM-5 should primarily be used for text and code tasks. When screenshots, scanned documents, or audio need to be processed, appropriate recognition and parsing steps should be arranged first before submitting the extracted content; lengthy materials should also be divided by task, with key constraints retained to avoid important information being missed during multi-round collaboration.
Official document-production examples rely on supporting Agent skills and do not mean that ordinary chat requests will directly return downloadable office files. When generating reports, materials, formulas, and citations still need to be verified; cross-module code changes need to go through compilation, testing, and review, with particular attention to project dependencies and runtime configurations that have not been provided.
Frequently Asked Questions
Answers to common questions about using glm-5.
Is GLM-5 short for GLM-5.3?
No. GLM-5 is an independent native model, with the invocation ID glm-5; names such as glm-5.3 and glm-5-turbo correspond to different models. Do not directly apply the context, output limits, or reasoning controls of other versions to GLM-5. Revalidate task performance when switching.
How do I call glm-5 using the standard API?
Submit model=glm-5 and messages to /v1/chat/completions. Read regular results from choices[].message.content; for streaming calls, obtain incremental results through stream. Use this platform's API Key, and set the complete base URL according to the SDK you use.
Can GLM-5 directly modify and run my project?
It can analyze code, plan changes, and generate tool calls, but actually reading and writing the project and running tests requires an execution environment. It is recommended to restrict accessible directories, executable commands, and acceptance criteria, then send back the execution results so the model can continue refining based on real feedback rather than judging success from explanations alone.
Can GLM-5 directly generate Word or Excel files?
The official materials demonstrate a workflow for creating office files with Agent skills. Standard chat integrations are better suited for first obtaining document content, table structures, or generation scripts, then using file creation tools to complete the export. Distinguish between textual content in a response and file artifacts that have already been generated and can be downloaded.
How can I make GLM-5 handle complex development tasks better?
First provide requirement boundaries, relevant code, error information, and clear acceptance criteria, then ask it to propose a phased plan. Send back test results and new constraints at each stage, and retain key decisions and unresolved issues. Compared with simply saying “help me fix it,” this feedback-driven collaboration is better aligned with its engineering task focus.