OpenAI o1 vs Claude 4 Haiku
Performance benchmarks + pricing comparison — updated April 2026
OpenAI o1
OpenAIReasoning model optimized for complex problem-solving. Excels at math, science, and advanced coding.
| Input | $15.00/M |
| Output | $60.00/M |
| Context | 200K tokens |
| Best For | Complex math, advanced coding, scientific reasoning |
| Benchmark | 83/100 |
Claude 4 Haiku
AnthropicUpdated Haiku model with improved reasoning over Claude 3.5 Haiku. Fast and affordable for high-volume tasks.
| Input | $0.800/M |
| Output | $4.00/M |
| Context | 200K tokens |
| Best For | High-volume tasks, simple queries, cost-sensitive workflows |
| Benchmark | 55/100 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | OpenAI o1 | Claude 4 Haiku | Leader |
|---|---|---|---|
| Overall Score | 83 | 55 | o1 leads by 28pts |
| SWE-bench Verified | 80 | 48 | o1 leads by 32pts |
| LiveCodeBench | 84 | 58 | o1 leads by 26pts |
| HumanEval | 95 | 78 | o1 leads by 17pts |
| BigCodeBench | 73 | 40 | o1 leads by 33pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | OpenAI o1 | Claude 4 Haiku | Savings |
|---|---|---|---|
| Small Script (1K lines) | $2.32 | $0.16 | Claude 4 Haiku saves $2.16 (93%) |
| Medium Feature (10K lines) | $17.25 | $1.24 | Claude 4 Haiku saves $16.01 (93%) |
| Large Project (50K lines) | $86.25 | $6.21 | Claude 4 Haiku saves $80.04 (93%) |
| Code Review (5K lines) | $4.13 | $0.32 | Claude 4 Haiku saves $3.80 (92%) |
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 |
|---|---|---|---|
| OpenAI o1 | 83 | $0.181/pt | Higher cost per point |
| Claude 4 Haiku | 55 | $0.015/pt | Better value |
Claude 4 Haiku delivers the best value at $0.015 per score point.
Strengths & Weaknesses
OpenAI o1
- + Strong step-by-step reasoning
- + Best at math-heavy coding
- - Expensive
- - Slow
Claude 4 Haiku
- + Fast
- + Good value
- + Improved over 3.5 Haiku
- - Limited reasoning depth
Verdict
Claude 4 Haiku is cheaper at $0.800/M, but OpenAI o1 scores higher on benchmarks (83 vs 55).
Choose Claude 4 Haiku for cost-sensitive projects, OpenAI o1 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 Opus 4
AnthropicAnthropic's most powerful model. Best for complex reasoning and challenging coding tasks.
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.