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Models

GLM-5.3-Flash

Model Overview

Direct supply
ChatStreamingToolsThinkingCache

GLM-5.3-Flash: the Flash edition of Zhipu's GLM-5.3 series — 1M context, 128K max output.

Input Modalities

Text

Output Modalities

Text

Capabilities

Chat

Multi-turn conversational completions

Streaming

Tokens are delivered incrementally as they are generated

Tool Use

Can call functions/tools defined in the request

Thinking

Produces an extended internal reasoning trace before the final answer

Prompt Caching

Reuses previously processed prompt prefixes at a lower rate

Supported Modes

Chat

Model Pricing

40% off
Pay-as-you-go

Full Pricing Breakdown

Every billed dimension for GLM-5.3-Flash

Token Pricing

Cache Read$0.035$0.021per 1M tokens
Input$0.12$0.072per 1M tokens
Output$0.417$0.25per 1M tokens
Thinking$0.25per 1M tokens

Indicative pricing — final cost is confirmed at request time.

Context & Limits

Context Window
1,000,000 tokens
Max Output
131,072 tokens

Response speed

Data is being collected

API Code Example

Get API Key
OpenAI Compatible
import openai
 
client = openai.OpenAI(
base_url="https://api.modelsite.ai/v1",
api_key="sk-ms-...",
)
 
response = client.chat.completions.create(
model="glm-5.3-flash",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)