Z.AI
Ultra-low latency version of GLM-5.3-Flash engineered for high-concurrency real-time IDE code completion and interactive agents.
200K ctx$0.37 / 1M tok (Ultra-Low Latency MoE)
Introducing GLM-4.5-AirZ.AIReleased July 28, 2025
GLM-4.5-Air
Cost-effective high-performance variant in the GLM-4.5 family, priced at only $0.20 per million input tokens.
text-to-textProprietary API$0.20 / 1M tok (Cost-Effective Air)Context: 128K (128,000 tokens)Arena ELO: 1265
Technical Specifications
Architecture Type
Cost-Effective High-Performance Transformer
Total Parameters
Efficient Scale
Context Window
128K (128,000 tokens)
Max Output Tokens
32.768K (32,768 tokens)
Knowledge Cutoff
June 2025
Supported Modalities
text, code
License & Access
Z.AI Terms of Service
Benchmark Evaluations
Mmlu
80.5
Humaneval
82
Chatbot Arena ELO
1265
Deep Architectural Overview
GLM-4.5-Air delivers balanced intelligence for high-throughput batch extraction, summarization, and daily coding assistance with cache read hits as low as $0.03 per million tokens.
Strengths & Considerations
Core Strengths
- Very affordable at $0.20 input / $1.10 output
- $0.03 cached input reads
- 128k context retention
Known Limitations
- Lightweight model, not designed for deep mathematical reasoning
Token & API Pricing
Input Tokens (1M)$0.20
Output Tokens (1M)$1.10
Cached Input (1M)$0.0300
Pricing is verified directly against Z.AI's developer documentation and API rate sheets.
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