GLM 5 vs GLM 5.3 FlashX

Price, context window & benchmark comparison

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GLM 5

Z.ai (Zhipu)
$0.60 / $1.92
Input / Output · per 1M tokens
VS
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GLM 5.3 FlashX

Z.ai (Zhipu)
$0.37 / $1.25
Input / Output · per 1M tokens
Compare different models
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Verdict: GLM 5.3 FlashX is 37% cheaper than GLM 5 on a typical 3:1 input/output mix. GLM 5.3 FlashX has the larger context window (1M vs 205K).
GLM 5GLM 5.3 FlashX
Input price / 1M$0.60$0.37
Output price / 1M$1.92$1.25
Blended price (3:1)$0.93$0.59
Cached input / 1M$0.12$0.09
Context window205K1M
Max output128K131K
Intelligence index
Coding index
Providers1
Best provider uptime (30m)100.0%
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2026-02-112026-09-18
Retirement

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FAQ

Which is cheaper, GLM 5 or GLM 5.3 FlashX?

GLM 5.3 FlashX is 37% cheaper than GLM 5 on a typical 3:1 input/output mix.

GLM 5 vs GLM 5.3 FlashX: which has a bigger context window?

GLM 5: 204,800 tokens. GLM 5.3 FlashX: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5 ≈ $2,160, GLM 5.3 FlashX ≈ $1,365.

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