Z.ai

GLM-4.5

The GLM-4.5 generation, including the lightweight Air variant, an early open-weight agentic model still in use.

ActiveReleased July 28, 2025Available from 4 providers
Tool callingCan invoke external tools and APIs (function calling) mid-response.Structured outputCan return JSON or schema-constrained responses instead of free text.ReasoningUses extended thinking / chain-of-thought for harder multi-step problems.Effort controlLets you dial thinking depth (low / medium / high) to trade cost for quality.Fine-tuningSupports training a custom variant on your own data.

Source: Z.ai GLM API pricing, Z.ai GLM models

Price per 1M tokens via Z.ai (OpenRouter)
$0.6 in / $2.2 out
Context window131,072
Max output98,304
Cache read$0.11 / M
ModalitiesText → Text
Priced across4 providers

Pricing

Every billing leg from the live catalog, in USD per 1M tokens.

Billing legRate
Input$0.6 / M
Output$2.2 / M
Cache read$0.11 / M

Cost calculator

Billing-grade math over the rate card above, including the thinking tokens most estimates miss.

Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.

Estimated monthly cost
$252
at current list prices
Fresh input$120
Cached input$0.00
Output incl. thinking$132
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Compare providers

The same model, priced across every platform that serves it. Lowest combined in/out rate is flagged.

PlatformInput / MOutput / MCache read / MBatchAccess
NovitaLowest
$0.13$0.85$0.025—via OpenRouter
SiliconFlow
$0.14$0.86——via OpenRouter
Together AI
$0.2$1.1—✓Direct
Z.ai
$0.2$1.1$0.03—via OpenRouter

Price history

Has this model gotten cheaper or more expensive?

No changePriced at $0.6 / $2.2 per 1M since July 10, 2026.

More from Z.ai

Other models from the same provider.

GLM-5.2
z-ai/glm-5.2
$0.546 / $1.72 in / out per 1M
GLM-5.1
z-ai/glm-5.1
$0.966 / $3.04 in / out per 1M
GLM-5
z-ai/glm-5
$0.6 / $1.92 in / out per 1M
GLM-5-Turbo
z-ai/glm-5-turbo
$1.2 / $4 in / out per 1M
GLM-4.7
z-ai/glm-4.7
$0.4 / $1.75 in / out per 1M
GLM-4.7-Flash
z-ai/glm-4.7-flash
$0.06 / $0.4 in / out per 1M

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SuperPenguin meters every GLM-4.5 call your team makes, prices it with this exact rate card, and shows spend by feature, customer, and team.

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Rates are generated from SuperPenguin's live pricing catalog.