GLM 5.3 FlashX vs Phi 4

Price, context window & benchmark comparison

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GLM 5.3 FlashX

Z.ai (Zhipu)
$0.37 / $1.25
Input / Output · per 1M tokens
VS
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Phi 4

Microsoft
$0.07 / $0.14
Input / Output · per 1M tokens
Compare different models
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Verdict: Phi 4 is 6.7× cheaper than GLM 5.3 FlashX on a typical 3:1 input/output mix. GLM 5.3 FlashX has the larger context window (1M vs 16K).
GLM 5.3 FlashXPhi 4
Input price / 1M$0.37$0.07
Output price / 1M$1.25$0.14
Blended price (3:1)$0.59$0.0875
Cached input / 1M$0.09
Context window1M16K
Max output131K15K
Intelligence index
Coding index
Providers1
Best provider uptime (30m)100.0%
Vision inputYesNo
ReasoningYesNo
Tool callingYesNo
Released2026-09-182025-01-10
Retirement

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FAQ

Which is cheaper, GLM 5.3 FlashX or Phi 4?

Phi 4 is 6.7× cheaper than GLM 5.3 FlashX on a typical 3:1 input/output mix.

GLM 5.3 FlashX vs Phi 4: which has a bigger context window?

GLM 5.3 FlashX: 1,048,576 tokens. Phi 4: 16,384 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 FlashX ≈ $1,365, Phi 4 ≈ $210.00.

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