Z.ai (GLM) API pricing
13 models tracked · headquartered in CN · official pricing
Free tier: Ongoing free tier What Z.ai (GLM) gives you free, in its own words
| Model | Input | Output | Context | |
|---|---|---|---|---|
| GLM-4 32B legacy | $0.1 | $0.1 | 128K | reasoning |
| GLM-5.3 Flash | $0.15 | $0.5 | 1.05M | reasoning |
| GLM-4.5-Air legacy | $0.2 | $1.1 | 128K | reasoning |
| GLM-4.5 legacy | $0.6 | $2.2 | 128K | reasoning |
| GLM-4.6 | $0.6 | $2.2 | 200K | reasoning |
| GLM-4.7 | $0.6 | $2.2 | 200K | reasoning |
| GLM-5 | $1 | $3.2 | 200K | reasoning |
| GLM-4.5-AirX legacy | $1.1 | $4.5 | 128K | reasoning |
| GLM-5 Code | $1.2 | $5 | 200K | reasoning |
| GLM-5.1 | $1.4 | $4.4 | 200K | reasoning |
| GLM-5.2 | $1.4 | $4.4 | 1M | reasoning |
| GLM-5.3 | $1.4 | $4.4 | 1M | reasoning |
| GLM-4.5-X legacy | $2.2 | $8.9 | 128K | reasoning |
Compare Z.ai (GLM)’s models on your own workload
How Z.ai (GLM) prices its models
Output prices across Z.ai (GLM)'s 8 current models run from $0.5 per 1M tokens (GLM-5.3 Flash) to $5 (GLM-5 Code), a 10x spread. Picking the smallest model that does the job is usually the biggest saving available.
Discounts: caching and batch
8 of 8 current models list a cached-input rate, from 80% off the fresh input rate on GLM-5.3 Flash. 0 list a batch discount for work that can wait.
Recorded price changes
No vendor price change to a Z.ai (GLM) input or output rate is on record since tracking began. Corrections we made to our own readings are listed on the changes page.
Where these prices come from
Every rate above is read from Z.ai (GLM)'s own pricing page (linked here) and re-checked every morning. A disputed figure is marked rather than hidden; see how PromptSpend checks prices.
Common questions
How much do Z.ai (GLM) API models cost?
PromptSpend tracks 13 Z.ai (GLM) models. The cheapest on a blended rate is GLM-4 32B, at $0.1 per 1M input tokens and $0.1 per 1M output tokens; the most expensive is GLM-4.5-X, at $2.2 in and $8.9 out.
Does Z.ai (GLM) have a free API tier?
PromptSpend's verdict is "Ongoing free tier". Its free-tier page gives Z.ai (GLM)'s own wording for each claim, with a link to the page it came from and the date it was read.
Where do the Z.ai (GLM) prices come from?
From Z.ai (GLM)'s own pricing page, https://docs.z.ai/guides/overview/pricing, with each model's check date shown on its page. Prices change without notice, and regional premiums, priority tiers and negotiated discounts are not included.