Z.ai: GLM 5.3
Vendor: z-ai|
glm-5.3Modalities
TextText
In / out price90% off90% cheaper than the provider's official price per 1M tokens.
$0.143 / $0.143 per 1M
Context
1.05M
Released
Aug 18, 2026
Overview
A large Z.ai reasoning model for complex engineering and long agentic runs: 1M-token context, up to 131K output. Reasoning is always on (low / high / max, max by default), with better token economy than GLM-5.2.
Context
1.05M
Max output
131 072
Released
Aug 18, 2026
Step-by-step reasoning
Yes
Coding
Price per 1M tokens
Input and output cost the same, billed per actual usage — no subscriptions, no minimums.
Input
$0.143/M
$1.40/M90% off90% cheaper than the provider's official price per 1M tokens.
Output
$0.143/M
$4.40/M97% off97% cheaper than the provider's official price per 1M tokens.
Official list price: $1.40 / $4.40 per 1M
Performance
Gateway metrics for the last 24 hours.
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FAQ
Are there any rate limits?
The default limit is request rate per key. Each key can be restricted by models, spend and IP in your dashboard.
How is billing calculated?
Pay as you go: one price per 1M tokens, input and output cost the same, charged proportionally to real usage.
Is streaming supported?
Yes, stream: true behaves exactly like in the OpenAI API — tokens arrive as they are generated.