GLM 5.3 FlashX vs Grok 4.20 Multi-Agent

Price, context window & benchmark comparison

Z

GLM 5.3 FlashX

Z.ai (Zhipu)
$0.37 / $1.25
Input / Output · per 1M tokens
VS
X

Grok 4.20 Multi-Agent

xAI
$1.25 / $2.50
Input / Output · per 1M tokens
Compare different models
Z
X
Verdict: GLM 5.3 FlashX is 2.6× cheaper than Grok 4.20 Multi-Agent on a typical 3:1 input/output mix. Grok 4.20 Multi-Agent has the larger context window (2M vs 1M).
GLM 5.3 FlashXGrok 4.20 Multi-Agent
Input price / 1M$0.37$1.25
Output price / 1M$1.25$2.50
Blended price (3:1)$0.59$1.56
Cached input / 1M$0.09$0.20
Context window1M2M
Max output131K1.8M
Intelligence index
Coding index
Providers1
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesNo
Released2026-09-182026-03-31
Retirement

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FAQ

Which is cheaper, GLM 5.3 FlashX or Grok 4.20 Multi-Agent?

GLM 5.3 FlashX is 2.6× cheaper than Grok 4.20 Multi-Agent on a typical 3:1 input/output mix.

GLM 5.3 FlashX vs Grok 4.20 Multi-Agent: which has a bigger context window?

GLM 5.3 FlashX: 1,048,576 tokens. Grok 4.20 Multi-Agent: 2,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 FlashX ≈ $1,365, Grok 4.20 Multi-Agent ≈ $3,750.

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