Ways to buy 3
| Way to buy | Input | Output | In / out per 1M | Cached | Vs cheapest |
|---|---|---|---|---|---|
 Novita AIbf16 · cached $0.025 | $0.13 | $0.85 | $0.13 / $0.85Cheapest | $0.025 | Cheapest |
 SiliconFlowfp8 | $0.14 | $0.86 | $0.14 / $0.86+3% vs cheapest | n/a | +3% vs cheapest |
 Z.aifp8 · cached $0.03 | $0.2 | $1.1 | $0.2 / $1.1+37% vs cheapest | $0.03 | +37% vs cheapest |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $30.00 direct.
Helicone$30.00+0%
Kong AI Gateway$30.00+0%
LiteLLM$30.00+0%
Vercel AI Gateway$30.00+0%
Cloudflare AI Gateway$31.50+5%
Requesty$31.50+5%
Eden AI$31.65+5.5%
OpenRouter$31.65+5.5%
No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | ||||||
|---|---|---|---|---|---|---|---|
| GLM 5.3 Prime Z.ai · 1M | $2.8 | $8.8 | $2.8 / $8.8 | $4.3 | 1M | Lab list price | · |
| GLM 5.3 FlashX Z.ai · 1M | $0.37 | $1.25 | $0.37 / $1.25 | $0.59 | 1M | Lab list price | · |
| GLM 5.3 Flash Z.ai · 1.31M | $0.045 | $0.14 | $0.045 / $0.14 | $0.069 | 1.31M | on InferenceNet (fp4) | · |
| GLM 5.3 Z.ai · 1.31M | $0.561 | $1.76 | $0.561 / $1.76 | $0.862 | 1.31M | on Baidu (fp8) | · |
 DeepSeek V4.1 FlashDeepSeek · 1MCheapest: $0.131 on Morph | $0.15 | $0.6 | $0.15 / $0.6 | $0.262 | 1M | $0.131 on Morph | · |
 Gemini 3.1 Flash LiteGoogle · 1MCheapest: $0.281 on Google Vertex AI (global-flex) | $0.25 | $1.5 | $0.25 / $1.5 | $0.563 | 1M | $0.281 on Google Vertex AI (global-flex) | · |
| Gemini 3.1 Flash Lite Preview Google · 1MCheapest: $0.281 on Google Gemini API (flex) | $0.25 | $1.5 | $0.25 / $1.5 | $0.563 | 1M | $0.281 on Google Gemini API (flex) | · |
 Command A+Cohere · 192K | $0.3 | $1.5 | $0.3 / $1.5 | $0.6 | 192K | Lab list price | · |
About GLM 4.5 Air
GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications.
Takes text in and returns text. First listed Sep 23, 2026. Up to 98K output tokens. Blended price $0.31 per 1M tokens at 3 input to 1 output. Model id glm-4-5-air.
Price history
No list-price history: this model is sold by hosts rather than its lab.
Across fru.devCompany profile
Questions
How much does GLM 4.5 Air cost?
$0.13 per million input tokens and $0.85 per million output tokens, with cached input at $0.025.
What is the context window of GLM 4.5 Air?
131K tokens, with up to 98K tokens of output.
Where is GLM 4.5 Air cheapest?
Of 3 routes tracked, Novita AI is cheapest at $0.13 input and $0.85 output per million tokens.
Sources: OpenRouter's public model catalog and each provider's own pricing page, read every morning at 05:00 UTC; gateway fees re-read every Monday. List prices: your contract may differ. Logos via logo.dev; trademarks belong to their owners.