GPT-4 Turbo vs GLM-4-Flash

Performance benchmarks + pricing comparison — updated April 2026

GPT-4 Turbo

OpenAI

Previous generation high-performance model. Good for complex reasoning tasks.

Input$10.00/M
Output$30.00/M
Context128K tokens
Best ForComplex reasoning, data extraction, analysis
Benchmark70/100

GLM-4-Flash

Zhipu AI

Zhipu AI's ultra-cheap model. Near-free pricing for high-volume Chinese and English text tasks.

Input$0.010/M
Output$0.010/M
Context128K tokens
Best ForHigh-volume text processing, Chinese NLP tasks

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioGPT-4 TurboGLM-4-FlashSavings
Small Script (1K lines) $1.25 <$0.01 GLM-4-Flash saves $1.25 (100%)
Medium Feature (10K lines) $9.50 <$0.01 GLM-4-Flash saves $9.49 (100%)
Large Project (50K lines) $47.50 $0.03 GLM-4-Flash saves $47.47 (100%)
Code Review (5K lines) $2.50 <$0.01 GLM-4-Flash saves $2.50 (100%)

Verdict

GLM-4-Flash wins on both price and performance — $0.010/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

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