GLM-5.3

Name: GLM-5.3
Author: DeepInfra

mit

GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves on GLM-5.2 in coding and in the balance between performance and token efficiency.

Context

1.0M

Max output

128K

Input price

$0.9/1M tokens

Output price

$4/1M tokens

Capabilities

Show unsupported (1)

Reasoning & Interaction

Reasoning

Tool Calling

Output Control

Structured Output

JSON Mode

Infrastructure

Streaming

Prompt Caching

Fine-tuning

Details

Model IDzai-org/GLM-5.3

ProviderDeepInfra

CreatorZ.AI (Zhipu)

FamilyGLM-5.3

Licensemit

Statusactive

Typechat

Input modalitiestext

Output modalitiestext

Open weightYes

Parameters—

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

$0.9

Output

Cache write

—

Cache read

$0.2

Batch in

—

Batch out

—

Family Comparison: GLM-5.3

Model	Caps	Perf	Speed	Context	Max out	Pricing
GLM-5.3-Flash	RTJJMSPCF	—	—	1.0M	128K	$0.15$0.5
GLM-5.3	RTJJMSPCF	—	—	1.0M	128K	$0.9$4

API

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