Gemini 3.8 Flash vs GLM 5.3 FlashX Legal

Price, context window & benchmark comparison

Google

Gemini 3.8 Flash

Google
$0.82 / $4.13
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
Google
Z.ai (Zhipu)
Verdict: GLM 5.3 FlashX Legal is 2.8× cheaper than Gemini 3.8 Flash on a typical 3:1 input/output mix.
Gemini 3.8 FlashGLM 5.3 FlashX Legal
Input price / 1M$0.82$0.37
Output price / 1M$4.13$1.25
Blended price (3:1)$1.65$0.59
Cached input / 1M$0.0825$0.075
Context window1M1M
Max output66K131K
Intelligence index30.8—
Coding index76.3—
Providers71
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-022026-11-02
Retirement——

Cost calculator

FAQ

Which is cheaper, Gemini 3.8 Flash or GLM 5.3 FlashX Legal?

GLM 5.3 FlashX Legal is 2.8× cheaper than Gemini 3.8 Flash on a typical 3:1 input/output mix.

Gemini 3.8 Flash vs GLM 5.3 FlashX Legal: which has a bigger context window?

Gemini 3.8 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: Gemini 3.8 Flash ≈ $3,713, GLM 5.3 FlashX Legal ≈ $1,365.

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