Question 1

What does this GLM-5 vs GLM-5.2 comparison cover?

Accepted Answer

It brings together documented inputs and outputs, token limits, deployment terms and available pricing. When both models have source-linked, verified results on a shared benchmark, those results are shown with their individual sources. The comparison is a starting point for evaluating your own workload.

Question 2

Which is cheaper: GLM-5 or GLM-5.2?

Accepted Answer

GLM-5 lists $1.00 input and $3.20 output per 1M tokens. GLM-5.2 lists $1.40 input and $4.40 output. The cheaper workload depends on the mix of input and output. Long-context tiers, caching, batch processing and retries can change the bill.

Question 3

Which has the larger context window: GLM-5 or GLM-5.2?

Accepted Answer

GLM-5 lists 204.8K tokens and GLM-5.2 lists 1M. GLM-5.2 therefore has the larger recorded context window, but capacity alone is not a quality score.

Question 4

Which is faster: GLM-5 or GLM-5.2?

Accepted Answer

There is no matched speed measurement for both models with the same source, host, region and date. Test the same prompts at your expected concurrency and measure time to the first useful response as well as complete task time.

Question 5

What input and output types do GLM-5 and GLM-5.2 support?

Accepted Answer

GLM-5 records text input and text output. GLM-5.2 records text input and text output. “Not documented” means the current source record is incomplete; it does not prove that a modality is unsupported.

Question 6

Should I choose GLM-5 or GLM-5.2?

Accepted Answer

Consider GLM-5 if you need a lower listed input rate or a lower listed output rate. Consider GLM-5.2 if you need larger context. Test both on the same representative examples and judge the output against your acceptance criteria. Include tool failures, retries and the time to a completed task.

Specification	GLM-5	GLM-5.2
Provider	Z.ai / Zhipu AI	Z.ai / Zhipu AI
Listed pricing route	Z.ai / Zhipu AI	Z.ai / Zhipu AI
Model family	glm	glm
Accepted inputs	text	text
Produced outputs	text	text
Context window	204.8K	1MHigher
Max output	131.07K	131.07K
Input price / 1M	$1.00Lower	$1.40
Output price / 1M	$3.20Lower	$4.40
Reasoning mode	Documented	Documented
Tool calling	Documented	Documented
Image input	Not documented	Not documented
Audio input	Not documented	Not documented
Structured output	Not documented	Documented
License	Open weights	Open weights

GLM-5 vs GLM-5.2

GLM-5

GLM-5.2

Key differences

Pricing, limits and capabilities

Which model should you choose?

Documentation and model profiles

Questions people ask

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