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Z.ai: GLM 4.5 Air

🇨🇳 Z.ai (Zhipu) · GLM 4.5

Input Price $0.130 per million tokens NT$4.2
Output Price $0.850 per million tokens NT$27.2
Context Window 131K tokens Output limit: 98K
OpenRouter Route Price Please verify with official pricing pages
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Overview

Z.ai: GLM 4.5 Air is a large language model API from Z.ai (Zhipu), part of its GLM 4.5 model family. At $0.130 per million input tokens and $0.850 per million output tokens, it sits in the budget tier — among the cheaper options for high-throughput or cost-sensitive workloads. Output tokens cost about 7× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. The 131K-token context window — around 197 pages of text — comfortably handles long documents, multi-file code, or extended conversations. On Artificial Analysis's Intelligence Index it scores 17 (D grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $0.130 NT$4.2
Output per 1M tokens $0.850 NT$27.2
Cached Input per 1M tokens $0.025 NT$0.80

Provider
Z.ai（智譜） (Z.ai (Zhipu))
Model Family
GLM 4.5
Version String
z-ai/glm-4.5-air
Status
Active
Modality
Text
Context Window
131,072 tokens
Output Limit
98,304 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Intelligence Index 17 D Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 43.7% D Measured: 2026-07-01
GPQA Diamond 73.3% B Measured: 2026-07-01
HLE 6.8% D Measured: 2026-07-01
IFBench 37.5% D Measured: 2026-07-01
IFBench 37.5% D Measured: 2026-07-01
Non-Hallucination 7.7% Measured: 2026-07-01
Omniscience Accuracy 15.5% Measured: 2026-07-01
SciCode 30.6% B Measured: 2026-07-01
Tau2 46.5% Measured: 2026-07-01
TerminalBench 20.4% Measured: 2026-07-01

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 2.7s Measured: 2026-07-01
Output Speed 68 t/s Measured: 2026-07-01
Response Time 39.5s Measured: 2026-07-01

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter
Input $0.130 OpenRouter
Cached Input $0.025 OpenRouter
Output $0.850 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • Z.ai: GLM 4.5 Air Input price: $0.13/M tokens
  • Z.ai: GLM 4.5 Air Output price: $0.85/M tokens
  • Context window: 131,072 tokens
  • Provider: Z.ai (Zhipu)
  • Model family: GLM 4.5
  • Modalities: Text
  • Data source: OpenRouter, updated daily