GLM-5.3-Flash

mit320B / 18B

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while reducing compute overhead.

Context
1.0M
Max output
128K
Input price
$0.15/1M tokens
Output price
$0.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Prompt Caching
Fine-tuning

Details

Model IDzai-org/GLM-5.3-Flash
Provider DeepInfra
Creator Z.AI (Zhipu)
FamilyGLM-5.3
Licensemit
Statusactive
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightYes
Parameters320B / 18B
Architecture—
Context window1.0M tokens
Max input—
Max output128K tokens
Reasoning tokensYes
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.deepinfra.com/v1/openai/v1/chat/completions

Pricing

Input
$0.15
Output
$0.5
Cache write
—
Cache read
$0.03
Batch in
—
Batch out
—

Family Comparison: GLM-5.3

ModelContextMax outPricing
GLM-5.3-Flash1.0M128K$0.15$0.5
GLM-5.31.0M128K$0.9$4

API

GET/v1/models/deepinfra/zai-org/GLM-5.3-Flash