GLM 5.3 Flash vs GLM 5.3 FlashX Legal

Price, context window & benchmark comparison

Z.ai (Zhipu)

GLM 5.3 Flash

Z.ai (Zhipu)
$0.0399 / $0.0784
Input / Output · per 1M tokens
VS
Z.ai (Zhipu)

GLM 5.3 FlashX Legal

Z.ai (Zhipu)
$0.37 / $1.25
Input / Output · per 1M tokens
Compare different models
Z.ai (Zhipu)
Z.ai (Zhipu)
Verdict: GLM 5.3 Flash is 11.9× cheaper than GLM 5.3 FlashX Legal on a typical 3:1 input/output mix.
GLM 5.3 FlashGLM 5.3 FlashX Legal
Input price / 1M$0.0399$0.37
Output price / 1M$0.0784$1.25
Blended price (3:1)$0.0495$0.59
Cached input / 1M$0.03$0.075
Context window1M1M
Max output131K131K
Intelligence index27.8—
Coding index71.5—
Providers421
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-08-262026-11-02
Retirement——

Cost calculator

FAQ

Which is cheaper, GLM 5.3 Flash or GLM 5.3 FlashX Legal?

GLM 5.3 Flash is 11.9× cheaper than GLM 5.3 FlashX Legal on a typical 3:1 input/output mix.

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

GLM 5.3 Flash: 1,048,576 tokens. GLM 5.3 FlashX Legal: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Flash ≈ $119.00, GLM 5.3 FlashX Legal ≈ $1,365.

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