GLM 4.5 Air
glm-4.5-airGLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter... Built by Z.ai.
Prices updated
Input price
$0.13
per 1M tokens · Standard
Output price
$0.85
per 1M tokens · Standard
Input limit
131K
tokens
Output limit
98K
tokens
Input formats
Output formats
GLM 4.5 Air price history
2 price records since 9/25/2026
GLM 4.5 Air cost calculator
$6.85/month
Standard pricing
Overview
What is GLM 4.5 Air?
GLM 4.5 Air is a text & reasoning model from Z.ai. GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter... Its 131K context window and $0.13 input price make it a candidate for cost-sensitive, high-throughput applications.
Benchmarks
GLM 4.5 Air benchmarks & speed
How GLM 4.5 Air scores on standardized evaluations, and where it lands among every model we track.
11.1
Intelligence Index
77tok/s
Output speed
1141
DesignArena Elo
Reasoning
GPQA Diamond
73.3%
Graduate-level scientific reasoning · top 68%
HLE
7.0%
Humanity's Last Exam · top 70%
Latency & design
- Time to first token
- 2.43s
- DesignArena win rate
- 51.4%
- Design battles judged
- 17,253
Independent scores from Artificial Analysis and DesignArena · updated 10/8/2026. Higher is better; ranks compare against every model we track with that score.
Rates
GLM 4.5 Air pricing
Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.
Input · Standard
$0.13
Per 1M tokens
Cached input · Standard
$0.03
Per 1M tokens
Capabilities
GLM 4.5 Air Tools
Tools available when using GLM 4.5 Air through supported provider APIs.
Function calling
Supported
Structured outputs
Not supported
JSON mode
Not supported
Reasoning
Supported
Built-in web search
Not supported
Log probabilities
Not supported
Deterministic seed
Supported
Parallel tool calls
Not supported
Prompt caching
Supported
Where to run it
GLM 4.5 Air API providers
3 providers serve GLM 4.5 Air. Prices are per 1M tokens; uptime is the last 24 hours.
| Provider | Input | Output | Cached | Context | Uptime |
|---|---|---|---|---|---|
| Novitabf16 | $0.13 | $0.85 | $0.03 | 131K | 99.93% |
| SiliconFlowfp8 | $0.14 | $0.86 | — | 131K | 99.24% |
| Z.AIfp8 | $0.20 | $1.10 | $0.03 | 131K | 99.74% |
- Input
- $0.13
- Output
- $0.85
- Cached
- $0.03
- Context
- 131K
- Uptime
- 99.93%
- Input
- $0.14
- Output
- $0.86
- Cached
- —
- Context
- 131K
- Uptime
- 99.24%
- Input
- $0.20
- Output
- $1.10
- Cached
- $0.03
- Context
- 131K
- Uptime
- 99.74%
Strengths and limitations
Strengths
- Low input cost at $0.13 per million tokens suits high-volume workloads.
- A 131K context window covers most focused application workflows.
- Supports text & reasoning workloads in one model.
Limitations
- Generated tokens cost 7× more than input tokens, which matters for verbose responses.
- The 131K context window is smaller than several long-context alternatives.
- Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.
Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.
Same provider