Claude Opus 4 vs Microsoft Phi-4
Performance benchmarks + pricing comparison — updated April 2026
Claude Opus 4
AnthropicAnthropic's most powerful model. Best for complex reasoning and challenging coding tasks.
| Input | $15.00/M |
| Output | $75.00/M |
| Context | 200K tokens |
| Best For | Complex architecture decisions, debugging hard bugs, research |
| Benchmark | 86/100 |
Microsoft Phi-4
MicrosoftMicrosoft's compact 14B model with strong reasoning and coding capability. Excellent value for small-scale deployments.
| Input | $0.100/M |
| Output | $0.300/M |
| Context | 128K tokens |
| Best For | Edge deployments, local inference, budget coding |
| Benchmark | 45/100 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | Claude Opus 4 | Microsoft Phi-4 | Leader |
|---|---|---|---|
| Overall Score | 86 | 45 | Claude Opus 4 leads by 41pts |
| SWE-bench Verified | 84 | 38 | Claude Opus 4 leads by 46pts |
| LiveCodeBench | 88 | 46 | Claude Opus 4 leads by 42pts |
| HumanEval | 96 | 68 | Claude Opus 4 leads by 28pts |
| BigCodeBench | 76 | 30 | Claude Opus 4 leads by 46pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | Claude Opus 4 | Microsoft Phi-4 | Savings |
|---|---|---|---|
| Small Script (1K lines) | $3.08 | $0.01 | Microsoft Phi-4 saves $3.07 (100%) |
| Medium Feature (10K lines) | $23.29 | $0.10 | Microsoft Phi-4 saves $23.19 (100%) |
| Large Project (50K lines) | $116.44 | $0.47 | Microsoft Phi-4 saves $115.96 (100%) |
| Code Review (5K lines) | $6.02 | $0.02 | Microsoft Phi-4 saves $5.99 (100%) |
Value Analysis (Price per Benchmark Score Point)
Lower is better — how much you pay for each point of benchmark performance.
| Model | Overall Score | Price per Score Point | Verdict |
|---|---|---|---|
| Claude Opus 4 | 86 | $0.174/pt | Higher cost per point |
| Microsoft Phi-4 | 45 | $0.002/pt | Better value |
Microsoft Phi-4 delivers the best value at $0.002 per score point.
Strengths & Weaknesses
Claude Opus 4
- + Best at complex reasoning
- + Strong system design
- + Excellent debugging
- - Expensive for bulk tasks
- - Slower response times
Microsoft Phi-4
- + Small model, runs locally
- - Limited capacity
Verdict
Microsoft Phi-4 is cheaper at $0.100/M, but Claude Opus 4 scores higher on benchmarks (86 vs 45).
Choose Microsoft Phi-4 for cost-sensitive projects, Claude Opus 4 when performance matters most.
Compare with Other Models
Claude Sonnet 4
AnthropicAnthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.
Claude 3.5 Sonnet
AnthropicPrevious generation Sonnet. Still excellent for coding tasks at the same price point.
Claude 3.5 Haiku
AnthropicFast, cost-effective model for high-volume tasks. Great for code review and simple queries.
Claude 3 Opus
AnthropicFirst generation Opus. Highest reasoning capability in the Claude 3 family.
Claude 3 Sonnet
AnthropicFirst generation Sonnet. Balanced performance for general tasks.
Claude 3 Haiku
AnthropicCheapest Claude model. Fast responses for simple tasks and basic coding.