GLM 5.3 Flash vs Hy4 preview

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
Tencent

Hy4 preview

Tencent
$0.83 / $2.50
Input / Output · per 1M tokens
Compare different models
Z.ai (Zhipu)
Tencent
Verdict: GLM 5.3 Flash is 25.3× cheaper than Hy4 preview on a typical 3:1 input/output mix.
GLM 5.3 FlashHy4 preview
Input price / 1M$0.0399$0.83
Output price / 1M$0.0784$2.50
Blended price (3:1)$0.0495$1.25
Cached input / 1M$0.03$0.042
Context window1M1M
Max output131K64K
Intelligence index27.8—
Coding index71.5—
Providers426
Best provider uptime (30m)100.0%100.0%
Vision inputYesNo
ReasoningYesYes
Tool callingYesYes
Released2026-08-262026-08-28
Retirement——

Cost calculator

FAQ

Which is cheaper, GLM 5.3 Flash or Hy4 preview?

GLM 5.3 Flash is 25.3× cheaper than Hy4 preview on a typical 3:1 input/output mix.

GLM 5.3 Flash vs Hy4 preview: which has a bigger context window?

GLM 5.3 Flash: 1,048,576 tokens. Hy4 preview: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Flash ≈ $119.00, Hy4 preview ≈ $2,919.

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