Gemini 2.5 Pro vs GLM 5.3 FlashX

Price, context window & benchmark comparison

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Gemini 2.5 Pro

Google
$1.25 / $10.00
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
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Verdict: GLM 5.3 FlashX is 5.8× cheaper than Gemini 2.5 Pro on a typical 3:1 input/output mix.
Gemini 2.5 ProGLM 5.3 FlashX
Input price / 1M$1.25$0.37
Output price / 1M$10.00$1.25
Blended price (3:1)$3.44$0.59
Cached input / 1M$0.13$0.09
Context window1M1M
Max output66K131K
Intelligence index16.1
Coding index33.3
Providers1
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2025-06-172026-09-18
Retirement2026-10-20

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FAQ

Which is cheaper, Gemini 2.5 Pro or GLM 5.3 FlashX?

GLM 5.3 FlashX is 5.8× cheaper than Gemini 2.5 Pro on a typical 3:1 input/output mix.

Gemini 2.5 Pro vs GLM 5.3 FlashX: which has a bigger context window?

Gemini 2.5 Pro: 1,048,576 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: Gemini 2.5 Pro ≈ $7,500, GLM 5.3 FlashX ≈ $1,365.

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