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LiveAdded 1 Aug 2026Z.ai

GLM-5.2 API

Z.ai's open-weight frontier challenger, strong coding and reasoning with one of the best free tiers in class.

Open playgroundView API docs

Model spec

Input
$1.40per 1M tokens
Output
$4.40per 1M tokens
Context
128K

Model ID

OpenAI-compatible · api.companyfabric.com/v1

Overview

About GLM-5.2

GLM-5.2 is Z.ai's open-weight frontier challenger, strong coding and reasoning with one of the most generous free tiers in class, which is exactly why 'glm 5.2 free' is one of the fastest-growing model queries. Through CompanyFabric it runs metered on the same key as everything else, with starter credits covering your first calls. Every model on CompanyFabric shares the same API key, billing balance, and rate-limit envelope, one integration covers the entire library.

Facts

At a glance

Availability

Live

Added 1 Aug 2026

Pricing

$1.40 in · $4.40 out

Per 1M tokens, metered exactly per call

Context window

128K tokens

Commercial use

See license

Open weights; commercial use permitted per the Z.ai model license.

Variants

All endpoints

GLM-5.3-Flash

$0.15/Mtok in

Native multimodal coding model at the lowest rate in the catalog.

Chat Completions

GLM-5.2

$1.4/Mtok in

Z.ai's open-weight frontier challenger, strong coding and reasoning with one of the best free tiers in class.

Chat Completions

GLM-5.3

$1.4/Mtok in

Z.ai's flagship coding and agent model, GLM-5.2's base post-trained further, at the same price.

Chat Completions

GLM-Legal

Coming soon

Z.ai's legal model, built on GLM-5.3-Flash, for contract review, evidence analysis and compliance. API access by application for now.

Chat Completions

Quickstart

How to use the GLM-5.2 API

  1. 1

    Create a free CompanyFabric account, starter credits are included, no card required.

  2. 2

    Copy your API key from the dashboard. One key covers every model in the library.

  3. 3

    Point any OpenAI SDK at api.companyfabric.com/v1 and set model to "z-ai/glm-5.2".

  4. 4

    Read the exact metered cost of the call from the response, the same number shown in the playground.

Use cases

What teams build with it

Agents & copilots

Drive agent loops, tool calls, and user-facing assistants over the OpenAI-compatible endpoint.

agentstool useassistants

Content pipelines

Summarization, rewriting, and structured generation at metered per-token cost.

contentsummarization

Extraction & classification

Turn unstructured input into typed JSON with schema-constrained output.

extractionjson mode

Get better output

Prompting tips

  • State the output format before the task, models follow contracts declared early.
  • Few-shot beats description: two worked examples outperform a paragraph of rules.
  • Cap output length explicitly when cost matters; output tokens dominate most bills.

Exact, metered, prepaid

GLM-5.2 pricing

GLM-5.2 pricing is per token: $1.4 / M input · $4.4 / M output. Output tokens cost 3.1× input tokens, so long generations, not long prompts, are what actually drive most bills. A typical call with a 2k-token prompt and a 1k-token answer costs about $0.0072.

Every call is metered exactly and attributed to your key, the dashboard, the API usage response, and your invoice all read from the same ledger row. Cap any key's monthly spend with a budget cap, and bring your own provider key (BYOK) at 0% platform fee if you already have a direct contract.

EndpointTypePrice
GLM-5.3-FlashChat$0.15 / M input · $0.5 / M output
GLM-5.2Chat$1.4 / M input · $4.4 / M output
GLM-5.3Chat$1.4 / M input · $4.4 / M output
GLM-LegalChatPrice not announced

Starter credits

Use GLM-5.2 free

Your CompanyFabric starter credits cover your first GLM-5.2 calls at no cost, create a free account, no card required, and the credits apply to GLM-5.2 and every other model on the key. When they run out, prepaid credits or BYOK (0% fee) take over with no plan to pick.

All ways to use AI models free →Run GLM-5.2 locally (open weights) →

Production-grade

Code samples

import OpenAI from "openai"

const client = new OpenAI({
  baseURL: "https://api.companyfabric.com/v1",
  apiKey: process.env.COMPANYFABRIC_API_KEY,
})

const res = await client.chat.completions.create({
  model: "z-ai/glm-5.2",
  max_tokens: 1024,
  temperature: 0.7,
  messages: [{ role: "user", content: "Say hello from the fabric." }],
})

console.log(res.choices[0].message.content)

Playground

Try it in the browser

PlaygroundZhipu (智谱)$1.4 in / $4.4 out per 1M tokens

Comparisons

GLM-5.2 vs the alternatives

GLM-5.2 vs DeepSeek V4.1 Flash

GLM-5.2 and DeepSeek V4.1 Flash compete for the same text workloads. Both run behind the same CompanyFabric key at exact metered prices, A/B them on your real prompts and let the outputs decide, then switch with a one-line change.

Full comparison: GLM-5.2 vs DeepSeek V4.1 Flash →

GLM-5.2 vs Kimi K3

GLM-5.2 and Kimi K3 compete for the same text workloads. Both run behind the same CompanyFabric key at exact metered prices, A/B them on your real prompts and let the outputs decide, then switch with a one-line change.

Full comparison: GLM-5.2 vs Kimi K3 →

Compare

GLM-5.2 head to head

GLM-5.2vsDeepSeek V4.1 Flash

FAQ

Frequently asked questions

How much does the GLM-5.2 API cost?

$1.4 / M input · $4.4 / M output. Every call is metered exactly and shown before you run it.

How do I get a GLM-5.2 API key?

Create a CompanyFabric account, and one key unlocks GLM-5.2 and every other model in the library. Free starter credits are included, no subscription, no card required to try it.

Why use GLM-5.2 on CompanyFabric instead of going direct?

One key, one prepaid balance, and one rate-limit envelope across the whole library, at pricing at parity with or below the direct API. Model switching is a one-line change, and BYOK routing is 0% fee.

Is the API OpenAI-compatible?

Yes, point any OpenAI SDK at api.companyfabric.com/v1 and set model to "z-ai/glm-5.2".

Can I use the output commercially?

Open weights; commercial use permitted per the Z.ai model license.

How does billing work?

Prepaid credits via card, or BYOK with your own provider keys at 0% platform fee. No subscription required; balances never expire.

Can I use GLM-5.2 for free?

Your CompanyFabric starter credits cover initial GLM-5.2 calls at no cost, no card required. Being open-weights, it can also be self-hosted; the API route is for when you'd rather not operate GPUs.

Provider

About Z.ai

Z.ai publishes the glm family. Also in this family: GLM-5.3-Flash, GLM-5.3, GLM-Legal. License: Open weights; commercial use permitted per the Z.ai model license.

One key. Every model. Exact prices.

Run GLM-5.2 with free starter credits. Free starter credits included, no subscription required.

Get your API keyBrowse all models