glm-5.3-flash

Name: zai-org/glm-5.3-flash
Brand: Z.ai
Price: 0.15 USD
Availability: InStock

Z.aiAdded Aug 28, 2026

Model idzai-org/glm-5.3-flash

Z.ai's first natively multimodal model, taking images as well as text, with 320B parameters and 18B active per token. Aimed at agentic coding, including front-end work where it checks its own rendered output.

Cost /1M tokens

$0.15input

$0.04cached

$0.50output

Context

1Mtokens

Live speed

161 tok/s · 0.71s to first token

Speed

Throughput users got on glm-5.3-flash with Keln API in the last 24 hours.

Latency

Time to first token users got on glm-5.3-flash with Keln API in the last 24 hours.

Capabilities

Input

Text and images

Tool calling

Yes

JSON output

Yes

Reasoning

Yes

Web search

With opt-in

Data retention

Zero

Use the API

Create an API key, save it to KELN_API_KEY, then call the endpoint below.

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.keln.ai/v1/",
    api_key=os.environ.get("KELN_API_KEY"),
)

resp = client.chat.completions.create(
    model="zai-org/glm-5.3-flash",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)