GLM 5.3 Flash

mit320B / 18B

GLM-5.3-Flash is a native multimodal model from Z.ai.

Context
1.0M
Max output
131K
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 Novita AI
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 output131K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.novita.ai/v3/openai/v1/chat/completions

Pricing

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

Family Comparison: glm-5.3

ModelContextMax outPricing
GLM 5.3 Flash1.0M131K$0.15$0.5
zai-org/glm-5.3-p1.0M131K$1.4$4.4
GLM 5.31.0M131K$1.4$4.4

API

GET/v1/models/novita/zai-org/glm-5.3-flash

GLM 5.3 Flash

zai-org/glm-5.3-flash

GLM-5.3-Flash is a native multimodal model from Z.ai.

Changes · 3 entries
zai-org/glm-5.3-flashcreateca7a400Nov 2, 2026, 03:02 AM
zai-org/glm-5.3-flashupdate79684d6Sep 9, 2026, 06:38 AM
pricinginput$0.075→$0.15output$0.25→$0.5
zai-org/glm-5.3-flashcreatee3d7dedAug 31, 2026, 04:13 AM