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

Z.ai: GLM 5.3 Flash costs $0.045 per 1M input tokens and $0.600 per 1M output tokens on the standard tier. Cached input is $0.029 per 1M.

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

Z.ai: GLM 5.3 Flash accepts up to 1,310,720 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 Flash?

Yes. Mistral: Mistral Nemo is $0.019 per 1M input tokens versus $0.045 for Z.ai: GLM 5.3 Flash, with a 131,072 token context window.

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

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Z.ai: GLM 5.3 Flash from OpenRouter costs $0.045 per 1M input tokens and $0.600 per 1M output tokens. Cached input is $0.029 per 1M. Context window 1,310,720 tokens.

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

$0.045

Input / 1M tokens

$0.600

Output / 1M tokens

$0.029

Cached input / 1M

1.3M

Context window

Z.ai: GLM 5.3 Flash specifications

Provider: OpenRouter
API id: z-ai/glm-5.3-flash
Model type: general-purpose
Context window: 1.3M tokens
Max output: 131K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

GLM-5.3-Flash 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
OpenRouterHostCheapestviewing	$0.045	$0.029	$0.600	$0.65	−1%
Zhipu AI (GLM)Vendor	$0.150	$0.030	$0.500	$0.65	—
Together AIHost	$0.150	$0.030	$0.500	$0.65	—

What Z.ai: GLM 5.3 Flash costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0003
Document summary	50,000	2,000	$0.0034
1M tokens in, 200K out	1,000,000	200,000	$0.16

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

Z.ai: GLM 5.3 Flash price history

Recorded	Input /1M	Output /1M
2026-09-25	$0.045	$0.600
2026-09-22	$0.150	$0.500
2026-09-17	$0.090	$0.300
2026-09-16	$0.100	$0.333
2026-09-11	$0.150	$0.500
2026-08-27	$0.075	$0.250

Common questions

How much does Z.ai: GLM 5.3 Flash cost per 1M tokens?: Z.ai: GLM 5.3 Flash costs $0.045 per 1M input tokens and $0.600 per 1M output tokens on the standard tier. Cached input is $0.029 per 1M.
What is Z.ai: GLM 5.3 Flash's context window?: Z.ai: GLM 5.3 Flash accepts up to 1,310,720 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 Flash?: Yes. Mistral: Mistral Nemo is $0.019 per 1M input tokens versus $0.045 for Z.ai: GLM 5.3 Flash, with a 131,072 token context window.
Where does this Z.ai: GLM 5.3 Flash 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 Flash with another model →

Other OpenRouter models

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