Hugging Face: GLM-5.1 (HF)

Name: GLM-5.1 (HF) API
Brand: Zai

stable

GLM-5.1 (HF) is available through Everstack's OpenAI-compatible gateway with routing, fallback, retries, and observability.

zai-org__GLM-5.1glmreleased Apr 3, 2026

Provider Quick start

Context

202.8K

tokens

Max output

131.1K

tokens

Input

$1.00

per 1M

Output

$3.20

per 1M

Activity

Daily period usage

Aggregated managed Everstack traffic. Buckets below 5 tenants or 100 requests are withheld.

Providers

ProviderContextInput /MOutput /M

Pricing

Item	Price	Unit
Input	$1.00	per 1M tokens
Output	$3.20	per 1M tokens
Cache read	$0.20	per 1M tokens

Performance

Reliability

Compare

Compare usage and performance

Place this model beside up to three other catalog models.

Capabilities

Modalities

Input

Output

Details

Model ID: zai-org__GLM-5.1
Family: glm
Status: stable
Knowledge: -
Released: Apr 3, 2026

Gateway Config

API: 2024-01-01
Auth: HUGGINGFACE_API_KEY
Discovery: dynamic
Provider type: meta

Quick Start

index.ts

import Everstack from "@everstack/node";const client = new Everstack({  apiKey: process.env.EVERSTACK_API_KEY!,  baseUrl: "https://{instance}.{region}.everstack.ai",});const completion = await client.chat.completions.create({  model: "@huggingface/zai-org__GLM-5.1",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL

https://router.huggingface.co/v1

Chat completions

https://router.huggingface.co/v1/chat/completions

Model

zai-org__GLM-5.1

Auth env

HUGGINGFACE_API_KEY

GLM-5.1 (HF) FAQ

How much does the GLM-5.1 (HF) API cost?

Through Hugging Face, GLM-5.1 (HF) costs $1.00 per 1M input tokens and $3.20 per 1M output tokens.

What is the context window of GLM-5.1 (HF)?

GLM-5.1 (HF) accepts up to 202.8K tokens of context and returns up to 131.1K output tokens on Hugging Face.

Which providers offer GLM-5.1 (HF)?

GLM-5.1 (HF) is available from Hugging Face, Fireworks AI, Together AI and Z.AI. Everstack can route between them with automatic fallback when one is unavailable.

What can GLM-5.1 (HF) do?

GLM-5.1 (HF) supports chat, function calling and reasoning. It accepts text input.

How do I call GLM-5.1 (HF) through Everstack?

Point any OpenAI-compatible SDK at your Everstack gateway and set the model to @huggingface/zai-org__GLM-5.1. Everstack adds retries, provider fallback, caching, per-tenant budgets and OpenTelemetry traces for every request.