GLM API pricing. Up to 73% below list.

GLM is Z.ai's family of models. GLM-5.3 is the flagship for complex software engineering and long-running agents, with up to 128K output tokens. GLM-5.3 Flash is the low-cost model, with 18B of its 320B parameters active per token, and GLM-5.2 is the open-weight model that brought GLM to a 1M-token context window. Zurelay serves them through one OpenAI-compatible endpoint, billed per token below Z.ai's list price.

GLM models
3
Below Z.ai's list
50–73%
From, per 1M input
$0.07
Get your API keySee every price
PlaygroundDemo

Chat with GLM-5.3

Pick a prompt to see a reply stream in, priced at GLM-5.3’s rate.

Sample replies, priced live. Nothing is sent.

Pricing

Every GLM model. Live prices, one key.

Each GLM model on Zurelay, with Z.ai's list price beside ours.

GLM API prices on Zurelay and at Z.ai's list price
ModelContextInput / 1MOutput / 1M10K requestsYou save
GLM-5.3glm-5.31M
$0.38
$1.40
$1.21
$4.40
$13.65
$50.00
73%off
GLM-5.2glm-5.21M
$0.38
$1.40
$1.21
$4.40
$13.65
$50.00
73%off
GLM-5.3 Flashglm-5.3-flash1M
$0.07
$0.15
$0.25
$0.50
$2.65
$5.50
50%off

Prices in US dollars per 1M tokens, live from the catalog, with Z.ai's list price struck through. 10K requests is 10,000 requests of 2,000 tokens in and 500 out, at each price. You save is on output tokens.

Which model

Which GLM model to use. Same key for all of them.

73%off

Software engineering and agents

GLM-5.3

$0.38 / $1.21 per 1M tokens

Z.ai's flagship for complex software engineering and long-running agents, with a 1M-token context window and up to 128K output tokens.

GLM-5.3 API
50%off

Low-cost coding and agents

GLM-5.3 Flash

$0.07 / $0.25 per 1M tokens

Z.ai says it outperforms GLM-5.2 and approaches Claude Opus 4.8 on coding and agent benchmarks.

GLM-5.3 Flash API
73%off

Open weights, long-horizon coding

GLM-5.2

$0.38 / $1.21 per 1M tokens

Z.ai's open-weight model for long-horizon coding and the first GLM with a 1M-token context window.

GLM-5.2 API

Quickstart

Change two lines. Keep your code.

Point the OpenAI SDK, or any OpenAI-compatible tool, at https://api.zurelay.com/v1 and use your Zurelay key. Streaming, tool calling and structured output work as documented.

Add credit from $10, with no subscription. The quickstart has the rest.

chat.py
from openai import OpenAI
client = OpenAI(
    base_url="https://api.zurelay.com/v1",
    api_key="YOUR_ZURELAY_KEY",
)
stream = client.chat.completions.create(
    model="glm-5.3",
    messages=[{"role": "user", "content": "Explain quicksort in two sentences."}],
    stream=True,
)
for chunk in stream:
    if chunk.choices:
        print(chunk.choices[0].delta.content or "", end="")

Verified

The GLM you asked for. Checked every day.

Model capacity is often bought ahead, through prepaid credits, committed-spend contracts and volume tiers, and not all of it gets used. Sellers offer it below list price. Zurelay tests each route, pools several per model and sends every request to one that is available and verified.

Before a route serves requests, and every day after, it has to pass identity, dated-knowledge and reasoning checks that catch a different or older model sold under a newer name. Failed attempts move to another route, and you aren’t billed for them. How models are verified.

Live health for every model is on the status page.

FAQ

GLM API questions.

Anything else? Ask our team and we’ll answer by email.

How much does the GLM API cost?

On Zurelay, GLM models cost from $0.07 input and $0.25 output per 1M tokens (GLM-5.3 Flash) to $0.38 and $1.21 (GLM-5.3), 50–73% below Z.ai's list prices. There's no subscription or minimum spend: you add prepaid credit from $10 and pay for the tokens you use.

Is it the real GLM?

Yes. Each model is served over several routes run by independent sellers. Every route is tested before it serves requests and every day after, with identity, dated-knowledge and reasoning checks that catch a different or older model sold under the name you asked for. If an answer doesn't look right, send its x-request-id to support and we check the route that served it.

Why is it cheaper than Z.ai's own API?

Sellers offer model capacity they bought ahead, through prepaid credits, committed-spend contracts and volume tiers, below list price. Zurelay tests it, pools several routes per model and sends each request to one that is available and verified. Requests aren't served under Z.ai's own terms for its customers; our Terms explain how they are served.

How do I start calling GLM through Zurelay?

Create a key, then point the OpenAI SDK, or any OpenAI-compatible tool, at https://api.zurelay.com/v1 with a model ID such as glm-5.3. Code that already uses the OpenAI SDK only needs the base URL, the key and the model name changed.

What is the saving measured against?

Z.ai's list price for each model, per input and output token.

More pricing

Stop paying list price.
Start saving today.

Create a key in seconds, point the SDK you already use at Zurelay, and every request costs up to 90% less from the first token.

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