How much does Z.ai: GLM 4.5 cost per 1M tokens?

Z.ai: GLM 4.5 costs $0.600 per 1M input tokens and $2.20 per 1M output tokens on the standard tier. Cached input is $0.110 per 1M.

What is Z.ai: GLM 4.5's context window?

Z.ai: GLM 4.5 accepts up to 131,072 tokens in a single request, and can return up to 98,304 output tokens.

Is there a cheaper OpenRouter model than Z.ai: GLM 4.5?

Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $0.600 for Z.ai: GLM 4.5, with a 16,385 token context window.

Where does this Z.ai: GLM 4.5 price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Z.ai: GLM 4.5 pricing

GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. Z.ai: GLM 4.5 from OpenRouter costs $0.600 per 1M input tokens and $2.20 per 1M output tokens. Cached input is $0.110 per 1M. Context window 131,072 tokens.

API id z-ai/glm-4.5 · OpenRouter · source · updated 2026-09-25 · general-purpose

$0.600

Input / 1M tokens

$2.20

Output / 1M tokens

$0.110

Cached input / 1M

131K

Context window

Z.ai: GLM 4.5 specifications

Provider: OpenRouter
API id: z-ai/glm-4.5
Model type: general-purpose
Context window: 131K tokens
Max output: 98K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

GLM-4.5 across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

Provider	Input /1M	Cached /1M	Output /1M	1M in + 1M out	vs vendor
Zhipu AI (GLM)VendorCheapest	$0.600	$0.110	$2.20	$2.80	—
OpenRouterHostviewing	$0.600	$0.110	$2.20	$2.80	—

What Z.ai: GLM 4.5 costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0017
Document summary	50,000	2,000	$0.03
1M tokens in, 200K out	1,000,000	200,000	$1.04

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does Z.ai: GLM 4.5 cost per 1M tokens?: Z.ai: GLM 4.5 costs $0.600 per 1M input tokens and $2.20 per 1M output tokens on the standard tier. Cached input is $0.110 per 1M.
What is Z.ai: GLM 4.5's context window?: Z.ai: GLM 4.5 accepts up to 131,072 tokens in a single request, and can return up to 98,304 output tokens.
Is there a cheaper OpenRouter model than Z.ai: GLM 4.5?: Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $0.600 for Z.ai: GLM 4.5, with a 16,385 token context window.
Where does this Z.ai: GLM 4.5 price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Compare Z.ai: GLM 4.5 with another model →

Other OpenRouter models

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