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Overview

glm-5.1 is the GLM flagship on Kyma. It is strongest when the task looks like engineering work instead of normal chat: longer coding runs, repo-scale planning, multi-step execution, and sustained agent behavior over time.

Specs

FieldValue
Model IDglm-5.1
Best forLong-running coding agents, repo-scale engineering, multi-step execution
Context window203K
Max output tokens65K
Input modalitiesText
Output modalitiesText
Tool callingYes
Structured outputsYes
Prompt cachingYes
SpeedMedium
Cost bandPremium
Release stageStable

Use this when

  • You are running a coding agent for extended work, not just one-shot prompts.
  • You need repo-scale planning, migration work, debugging, or multi-file implementation.
  • You want a strong text-only engineering model that can sustain longer task chains.

Pick something else when

  • You want the safest general-purpose default: use qwen-3.6-plus.
  • You need multimodal agent behavior: use kimi-k2.5.
  • You need the cheapest long-context option: use glm-4.7-flash or gemini-2.5-flash.
  • You only need fast coding loops rather than long-horizon execution: use qwen-3-32b.

Example

from openai import OpenAI

client = OpenAI(base_url="https://kymaapi.com/v1", api_key="ky-...")

response = client.chat.completions.create(
    model="glm-5.1",
    messages=[{"role": "user", "content": "Plan a repo-wide migration, identify rollout risks, and break the work into agent-executable steps."}]
)
AliasResolves to
glm-flagshipglm-5.1