Claude Opus 4 vs Phi-4 Mini

Performance benchmarks + pricing comparison — updated April 2026

Claude Opus 4

Anthropic

Anthropic's most powerful model. Best for complex reasoning and challenging coding tasks.

Input$15.00/M
Output$75.00/M
Context200K tokens
Best ForComplex architecture decisions, debugging hard bugs, research
Benchmark86/100

Phi-4 Mini

Microsoft

Microsoft's latest small model with improved coding ability. Better than Phi-3 for developer tasks.

Input$0.100/M
Output$0.300/M
Context128K tokens
Best ForCoding 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.

ScenarioClaude Opus 4Phi-4 MiniSavings
Small Script (1K lines) $3.08 $0.01 Phi-4 Mini saves $3.07 (100%)
Medium Feature (10K lines) $23.29 $0.10 Phi-4 Mini saves $23.19 (100%)
Large Project (50K lines) $116.44 $0.47 Phi-4 Mini saves $115.96 (100%)
Code Review (5K lines) $6.02 $0.02 Phi-4 Mini saves $5.99 (100%)

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