GLM-5.3 Prime is Zhipu AI's language model with a 1.0M context window and up to 131K output tokens, starting at $2.80 / 1M input and $8.80 / 1M output. A high-speed variant of GLM-5.3 that inherits its full text and multimodal capabilities while delivering substantially higher output throughput via inference acceleration.
Specifications
Canonical IDzhipu-glm-5-3-prime
TypeLanguage
StatusActive
CreatorZhipu AIZhipu AI
Providers
Context Window1.0M tokens
Max Output131K tokens
Input ModalitiesText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 2 days ago

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities4/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
OpenRouter logo
OpenRouter
z-ai/glm-5.3-prime
$2.80$8.80$0.56

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GLM-5.3 Prime1.0M$2.80$8.80Current
GLM-5.3 FlashX1.0M$0.370$1.25Available
GLM-5.3 Flash1.3M$0.113$0.394Available
GLM-5.31.3M$0.840$2.64Available
GLM-5.3 (50% off)1.0M——Available
GLM-5.2 Fast1.0M$2.10$6.60Available
GLM-5.21.0M$0.610$1.98Available
GLM-5V Turbo205K$0.704$3.10Available
GLM-5 Turbo203K$1.20$4.00Available
GLM-5.1 Non-Reasoning————Available
GLM-5 Non-Reasoning————Available

Model IDs

openrouter/z-ai/glm-5.3-prime
z-ai/glm-5.3-prime
zhipu-glm-5-3-prime