OpenAI o3 vs Phi-4 Mini
Performance benchmarks + pricing comparison — updated April 2026
OpenAI o3
OpenAINext generation reasoning model. Improved coding and math over o1.
| Input | $10.00/M |
| Output | $40.00/M |
| Context | 200K tokens |
| Best For | Advanced coding, complex problem-solving |
| Benchmark | 85/100 |
Phi-4 Mini
MicrosoftMicrosoft's latest small model with improved coding ability. Better than Phi-3 for developer tasks.
| Input | $0.100/M |
| Output | $0.300/M |
| Context | 128K tokens |
| Best For | Coding assistance, lightweight development tools |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | OpenAI o3 | Phi-4 Mini | Savings |
|---|---|---|---|
| Small Script (1K lines) | $1.55 | $0.01 | Phi-4 Mini saves $1.54 (99%) |
| Medium Feature (10K lines) | $11.50 | $0.10 | Phi-4 Mini saves $11.40 (99%) |
| Large Project (50K lines) | $57.50 | $0.47 | Phi-4 Mini saves $57.02 (99%) |
| Code Review (5K lines) | $2.75 | $0.02 | Phi-4 Mini saves $2.73 (99%) |
Verdict
Phi-4 Mini wins on both price and performance — $0.100/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 Sonnet
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Claude 3.5 Haiku
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Claude 3 Opus
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Claude 3 Sonnet
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