How much does Z.ai: GLM 5.3 FlashX cost per 1M tokens?

Z.ai: GLM 5.3 FlashX costs $0.370 per 1M input tokens and $1.25 per 1M output tokens on the standard tier. Cached input is $0.090 per 1M.

What is Z.ai: GLM 5.3 FlashX's context window?

Z.ai: GLM 5.3 FlashX accepts up to 1,048,576 tokens in a single request, and can return up to 131,072 output tokens.

Is there a cheaper OpenRouter model than Z.ai: GLM 5.3 FlashX?

Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.370 for Z.ai: GLM 5.3 FlashX, with a 8,192 token context window.

Where does this Z.ai: GLM 5.3 FlashX 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 5.3 FlashX pricing

GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s. Z.ai: GLM 5.3 FlashX from OpenRouter costs $0.370 per 1M input tokens and $1.25 per 1M output tokens. Cached input is $0.090 per 1M. Context window 1,048,576 tokens.

API id z-ai/glm-5.3-flashx · OpenRouter · source · updated 2026-09-25 · general-purpose

$0.370

Input / 1M tokens

$1.25

Output / 1M tokens

$0.090

Cached input / 1M

Context window

Z.ai: GLM 5.3 FlashX specifications

Provider: OpenRouter
API id: z-ai/glm-5.3-flashx
Model type: general-purpose
Context window: 1M tokens
Max output: 131K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

GLM-5.3-FlashX 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	$0.370	$0.075	$1.25	$1.62	—
OpenRouterHostviewing	$0.370	$0.090	$1.25	$1.62	—

What Z.ai: GLM 5.3 FlashX costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0010
Document summary	50,000	2,000	$0.02
1M tokens in, 200K out	1,000,000	200,000	$0.62

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

Z.ai: GLM 5.3 FlashX price history

Recorded	Input /1M	Output /1M
2026-09-24	$0.370	$1.25
2026-09-19	$0.370	$1.25

Common questions

How much does Z.ai: GLM 5.3 FlashX cost per 1M tokens?: Z.ai: GLM 5.3 FlashX costs $0.370 per 1M input tokens and $1.25 per 1M output tokens on the standard tier. Cached input is $0.090 per 1M.
What is Z.ai: GLM 5.3 FlashX's context window?: Z.ai: GLM 5.3 FlashX accepts up to 1,048,576 tokens in a single request, and can return up to 131,072 output tokens.
Is there a cheaper OpenRouter model than Z.ai: GLM 5.3 FlashX?: Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.370 for Z.ai: GLM 5.3 FlashX, with a 8,192 token context window.
Where does this Z.ai: GLM 5.3 FlashX 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 5.3 FlashX with another model →

Other OpenRouter models

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