OpenAI o3-mini vs GLM-4-Plus

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o3-mini

OpenAI

Affordable reasoning model for coding tasks. Best price-performance for algorithm-heavy work.

Input$1.10/M
Output$4.40/M
Context200K tokens
Best ForAlgorithm design, coding challenges, debugging
Benchmark80/100

GLM-4-Plus

Zhipu AI

Zhipu AI's balanced model. Strong Chinese language understanding with competitive coding ability.

Input$0.700/M
Output$0.700/M
Context128K tokens
Best ForChinese applications, code generation, function calling

Cost Comparison by Scenario

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

ScenarioOpenAI o3-miniGLM-4-PlusSavings
Small Script (1K lines) $0.17 $0.05 GLM-4-Plus saves $0.13 (73%)
Medium Feature (10K lines) $1.27 $0.38 GLM-4-Plus saves $0.88 (70%)
Large Project (50K lines) $6.33 $1.92 GLM-4-Plus saves $4.40 (70%)
Code Review (5K lines) $0.30 $0.14 GLM-4-Plus saves $0.16 (54%)

Verdict

GLM-4-Plus wins on both price and performance — $0.700/M input with a benchmark score of N/A/100.

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

Compare with Other Models