GLM 4.5
GLM 4.5 (Z.ai, 2025) is an chat model. GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly...
by Z.ai · 131K token context window
Best for
- low-latency chat and routing
- request routing and triage
- text classification
Ways to use GLM 4.5 in osFoundry
Connect with your own key (BYOK)
Open the key dialog and paste your Z.ai API key. osFoundry discovers GLM 4.5 automatically — assign it to a Maestro role (router, direct, orchestrator, or fallback) in the Pipeline tab and it is live in every chat. Your key, your provider account — no token markup.
Use it in a Room App
Room Apps declare AI features in their manifest, then call them with invokeAI:
import { invokeAI } from '@osfoundry/app-sdk'
// 'summarize' is an AI feature declared in your app manifest.
const result = await invokeAI('summarize', userText)
Call it from your own apps
Once a model is wired into your workspace you can host it as an API and reach it from your own services, scripts, or CI — outside osFoundry.
Run GLM 4.5 yourself
GLM 4.5 is also available as open weights — self-host it for full data control and no per-token cost. See that page for GPU requirements and a cost comparison against API pricing.
GLM 4.5 vs similar models
Licence
Hosted — usage subject to provider terms — Hosted-only model — usage governed by the provider's API terms. Bring your own provider key.
No weights distributed; usage subject to provider terms.
Frequently asked about GLM 4.5
How much does GLM 4.5 cost?
GLM 4.5 is metered at $ 0.600 /1M for input, and $ 2.20 /1M for output. Bring your own Z.ai API key — osFoundry passes through provider pricing without markup.
Can I use GLM 4.5 commercially?
Commercial use is allowed with conditions. Hosted-only model — usage governed by the provider's API terms. Bring your own provider key. No weights distributed; usage subject to provider terms.
What is the context window of GLM 4.5?
GLM 4.5 supports a 131K token context window.
Can I run GLM 4.5 locally?
No — GLM 4.5 is hosted only and accessed via the Z.ai API. An open-weights equivalent is available to self-host — see the cross-link above.
What is GLM 4.5 best at?
GLM 4.5 is well-suited to low-latency chat and routing, request routing and triage, text classification.
How do I use GLM 4.5 in osFoundry?
Paste your Z.ai API key in the key dialog (or deploy the open weights for self-hostable models), assign GLM 4.5 to a Maestro role in the Pipeline tab, then use it in chat, Room Apps via invokeAI, or your own apps.
Published by Z.ai on July 25, 2025. Source: https://openrouter.ai/z-ai/glm-4.5