OpenAI o4-mini vs GLM-4-Flash
Performance benchmarks + pricing comparison — updated April 2026
OpenAI o4-mini
OpenAIUpdated mini reasoning model. Similar pricing to o3-mini with updated capabilities.
| Input | $1.10/M |
| Output | $4.40/M |
| Context | 200K tokens |
| Best For | General reasoning, coding tasks |
| Benchmark | 72/100 |
GLM-4-Flash
Zhipu AIZhipu AI's ultra-cheap model. Near-free pricing for high-volume Chinese and English text tasks.
| Input | $0.010/M |
| Output | $0.010/M |
| Context | 128K tokens |
| Best For | High-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.
| Scenario | OpenAI o4-mini | GLM-4-Flash | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.17 | <$0.01 | GLM-4-Flash saves $0.17 (100%) |
| Medium Feature (10K lines) | $1.27 | <$0.01 | GLM-4-Flash saves $1.26 (100%) |
| Large Project (50K lines) | $6.33 | $0.03 | GLM-4-Flash saves $6.30 (100%) |
| Code Review (5K lines) | $0.30 | <$0.01 | GLM-4-Flash saves $0.30 (99%) |
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.
Compare with Other Models
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Claude 3.5 Haiku
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