Claude Opus 4 vs OpenAI o4-mini
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 |
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 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | Claude Opus 4 | OpenAI o4-mini | Leader |
|---|---|---|---|
| Overall Score | 86 | 72 | Claude Opus 4 leads by 14pts |
| SWE-bench Verified | 84 | 66 | Claude Opus 4 leads by 18pts |
| LiveCodeBench | 88 | 74 | Claude Opus 4 leads by 14pts |
| HumanEval | 96 | 92 | Claude Opus 4 leads by 4pts |
| BigCodeBench | 76 | 56 | Claude Opus 4 leads by 20pts |
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 | OpenAI o4-mini | Savings |
|---|---|---|---|
| Small Script (1K lines) | $3.08 | $0.17 | OpenAI o4-mini saves $2.91 (94%) |
| Medium Feature (10K lines) | $23.29 | $1.27 | OpenAI o4-mini saves $22.02 (95%) |
| Large Project (50K lines) | $116.44 | $6.33 | OpenAI o4-mini saves $110.11 (95%) |
| Code Review (5K lines) | $6.02 | $0.30 | OpenAI o4-mini saves $5.72 (95%) |
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 |
| OpenAI o4-mini | 72 | $0.015/pt | Better value |
OpenAI o4-mini delivers the best value at $0.015 per score point.
Strengths & Weaknesses
Claude Opus 4
- + Best at complex reasoning
- + Strong system design
- + Excellent debugging
- - Expensive for bulk tasks
- - Slower response times
OpenAI o4-mini
- + Improved reasoning at mini price
- - New model, limited data
Verdict
OpenAI o4-mini is cheaper at $1.10/M, but Claude Opus 4 scores higher on benchmarks (86 vs 72).
Choose OpenAI o4-mini 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.