O3 Mini vs Phi-4 Mini
Performance benchmarks + pricing comparison — updated April 2026
O3 Mini
OpenAIOpenAI's reasoning model at lower cost. Strong at math, coding, and science tasks.
| Input | $1.10/M |
| Output | $4.40/M |
| Context | 200K tokens |
| Best For | Math, science, coding tasks requiring deep reasoning |
| Benchmark | 80/100 |
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 | O3 Mini | Phi-4 Mini | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.17 | $0.01 | Phi-4 Mini saves $0.16 (93%) |
| Medium Feature (10K lines) | $1.27 | $0.10 | Phi-4 Mini saves $1.17 (92%) |
| Large Project (50K lines) | $6.33 | $0.47 | Phi-4 Mini saves $5.85 (92%) |
| Code Review (5K lines) | $0.30 | $0.02 | Phi-4 Mini saves $0.28 (92%) |
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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