GLM 5.3 Prime vs Grok 4.5

Price, context window & benchmark comparison

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GLM 5.3 Prime

Z.ai (Zhipu)
$2.80 / $8.80
Input / Output · per 1M tokens
VS
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Grok 4.5

xAI
$2.00 / $6.00
Input / Output · per 1M tokens
Compare different models
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X
Verdict: Grok 4.5 is 30% cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix. GLM 5.3 Prime has the larger context window (1M vs 500K).
GLM 5.3 PrimeGrok 4.5
Input price / 1M$2.80$2.00
Output price / 1M$8.80$6.00
Blended price (3:1)$4.30$3.00
Cached input / 1M$0.56$0.30
Context window1M500K
Max output131K450K
Intelligence index38.8
Coding index72.4
Providers14
Best provider uptime (30m)100.0%99.6%
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-232026-07-08
Retirement

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FAQ

Which is cheaper, GLM 5.3 Prime or Grok 4.5?

Grok 4.5 is 30% cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.

GLM 5.3 Prime vs Grok 4.5: which has a bigger context window?

GLM 5.3 Prime: 1,000,000 tokens. Grok 4.5: 500,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Prime ≈ $10,000, Grok 4.5 ≈ $7,000.

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