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

Z.ai: GLM 5.3 Prime costs $2.80 per 1M input tokens and $8.80 per 1M output tokens on the standard tier. Cached input is $0.560 per 1M.

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

Z.ai: GLM 5.3 Prime accepts up to 1,000,000 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 Prime?

Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $2.80 for Z.ai: GLM 5.3 Prime, with a 16,385 token context window.

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

GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration. Z.ai: GLM 5.3 Prime from OpenRouter costs $2.80 per 1M input tokens and $8.80 per 1M output tokens. Cached input is $0.560 per 1M. Context window 1,000,000 tokens.

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

$2.80

Input / 1M tokens

$8.80

Output / 1M tokens

$0.560

Cached input / 1M

Context window

Z.ai: GLM 5.3 Prime specifications

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

What Z.ai: GLM 5.3 Prime costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0072
Document summary	50,000	2,000	$0.16
1M tokens in, 200K out	1,000,000	200,000	$4.56

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 5.3 Prime cost per 1M tokens?: Z.ai: GLM 5.3 Prime costs $2.80 per 1M input tokens and $8.80 per 1M output tokens on the standard tier. Cached input is $0.560 per 1M.
What is Z.ai: GLM 5.3 Prime's context window?: Z.ai: GLM 5.3 Prime accepts up to 1,000,000 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 Prime?: Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $2.80 for Z.ai: GLM 5.3 Prime, with a 16,385 token context window.
Where does this Z.ai: GLM 5.3 Prime 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

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