GLM 5.3 Flash vs Phi 4

Price, context window & benchmark comparison

Z.ai (Zhipu)

GLM 5.3 Flash

Z.ai (Zhipu)
$0.0399 / $0.0784
Input / Output · per 1M tokens
VS
Microsoft

Phi 4

Microsoft
$0.07 / $0.14
Input / Output · per 1M tokens
Compare different models
Z.ai (Zhipu)
Microsoft
Verdict: GLM 5.3 Flash is 43% cheaper than Phi 4 on a typical 3:1 input/output mix. GLM 5.3 Flash has the larger context window (1M vs 16K).
GLM 5.3 FlashPhi 4
Input price / 1M$0.0399$0.07
Output price / 1M$0.0784$0.14
Blended price (3:1)$0.0495$0.0875
Cached input / 1M$0.03—
Context window1M16K
Max output131K15K
Intelligence index27.8—
Coding index71.5—
Providers42—
Best provider uptime (30m)100.0%—
Vision inputYesNo
ReasoningYesNo
Tool callingYesNo
Released2026-08-262025-01-10
Retirement——

Cost calculator

FAQ

Which is cheaper, GLM 5.3 Flash or Phi 4?

GLM 5.3 Flash is 43% cheaper than Phi 4 on a typical 3:1 input/output mix.

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

GLM 5.3 Flash: 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 Flash ≈ $119.00, Phi 4 ≈ $210.00.

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