GLM 5.3 Flash vs GPT-5.4 Mini

Price, context window & benchmark comparison

Z

GLM 5.3 Flash

Z.ai (Zhipu)
$0.15 / $0.50
Input / Output · per 1M tokens
VS
O

GPT-5.4 Mini

OpenAI
$0.75 / $4.50
Input / Output · per 1M tokens
Compare different models
Z
O
Verdict: GLM 5.3 Flash is 7.1× cheaper than GPT-5.4 Mini on a typical 3:1 input/output mix. GLM 5.3 Flash scores higher on the Artificial Analysis Intelligence Index (41.8 vs 24.1). GLM 5.3 Flash has the larger context window (1.3M vs 400K).
GLM 5.3 FlashGPT-5.4 Mini
Input price / 1M$0.15$0.75
Output price / 1M$0.50$4.50
Blended price (3:1)$0.24$1.69
Cached input / 1M$0.05$0.075
Context window1.3M400K
Max output944K128K
Intelligence index41.824.1
Coding index71.556.1
Providers31—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-08-262026-03-17
Retirement——

Cost calculator

FAQ

Which is cheaper, GLM 5.3 Flash or GPT-5.4 Mini?

GLM 5.3 Flash is 7.1× cheaper than GPT-5.4 Mini on a typical 3:1 input/output mix.

GLM 5.3 Flash vs GPT-5.4 Mini: which has a bigger context window?

GLM 5.3 Flash: 1,310,720 tokens. GPT-5.4 Mini: 400,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Flash ≈ $550.00, GPT-5.4 Mini ≈ $3,750.

More comparisons

GLM 5.3 Flash vs GLM 5.3 PrimeGLM 5.3 Flash vs Qwen3.8 Max PrimeGLM 5.3 Flash vs Command A+GLM 5.3 Flash vs GPT-6 Luna ProGLM 5.3 Flash vs GPT-6 LunaGLM 5.3 Flash vs GPT-6 Sol ProGLM 5.3 Flash vs GPT-6 SolGLM 5.3 Flash vs Claude Opus 5.5GLM 5.3 Flash vs MiMo-V2.6-Pro-UltraSpeedGLM 5.3 Flash vs MiMo-V2.6-FlashGLM 5.3 Flash vs Grok 4.7GLM 5.3 Flash vs Qwen3.8 Omni FlashGLM 5.3 Flash vs GLM 5.3 FlashXGLM 5.3 Flash vs DeepSeek V4.1 FlashGLM 5.3 Flash vs GPT-6 AstraGLM 5.3 Flash vs GPT-6 Astra ProGPT-5.4 Mini vs GLM 5.3 PrimeGPT-5.4 Mini vs Qwen3.8 Max PrimeGPT-5.4 Mini vs Command A+GPT-5.4 Mini vs GPT-6 Luna ProGPT-5.4 Mini vs GPT-6 LunaGPT-5.4 Mini vs GPT-6 Sol ProGPT-5.4 Mini vs GPT-6 SolGPT-5.4 Mini vs Claude Opus 5.5