GLM 5.3 Prime vs Grok 4.3

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
X

Grok 4.3

xAI
$1.25 / $2.50
Input / Output · per 1M tokens
Compare different models
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X
Verdict: Grok 4.3 is 2.8× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.
GLM 5.3 PrimeGrok 4.3
Input price / 1M$2.80$1.25
Output price / 1M$8.80$2.50
Blended price (3:1)$4.30$1.56
Cached input / 1M$0.56$0.20
Context window1M1M
Max output131K900K
Intelligence index—24.9
Coding index—42.2
Providers1—
Best provider uptime (30m)100.0%—
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-232026-04-30
Retirement——

Cost calculator

FAQ

Which is cheaper, GLM 5.3 Prime or Grok 4.3?

Grok 4.3 is 2.8× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.

GLM 5.3 Prime vs Grok 4.3: which has a bigger context window?

GLM 5.3 Prime: 1,000,000 tokens. Grok 4.3: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Prime ≈ $10,000, Grok 4.3 ≈ $3,750.

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