GPT-4 vs O3 Mini
Performance benchmarks + pricing comparison — updated April 2026
GPT-4
OpenAIOriginal GPT-4. Most expensive OpenAI model, largely superseded by newer options.
| Input | $30.00/M |
| Output | $60.00/M |
| Context | 8K tokens |
| Best For | Legacy applications requiring GPT-4 specifically |
| Benchmark | 68/100 |
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 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | GPT-4 | O3 Mini | Leader |
|---|---|---|---|
| Overall Score | 68 | 80 | o3-mini leads by 12pts |
| SWE-bench Verified | 60 | 76 | o3-mini leads by 16pts |
| LiveCodeBench | 70 | 85 | o3-mini leads by 15pts |
| HumanEval | 86 | 94 | o3-mini leads by 8pts |
| BigCodeBench | 54 | 65 | o3-mini leads by 11pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | GPT-4 | O3 Mini | Savings |
|---|---|---|---|
| Small Script (1K lines) | $2.85 | $0.17 | O3 Mini saves $2.68 (94%) |
| Medium Feature (10K lines) | $22.50 | $1.27 | O3 Mini saves $21.23 (94%) |
| Large Project (50K lines) | $112.50 | $6.33 | O3 Mini saves $106.17 (94%) |
| Code Review (5K lines) | $6.75 | $0.30 | O3 Mini saves $6.45 (96%) |
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 |
|---|---|---|---|
| GPT-4 | 68 | $0.441/pt | Higher cost per point |
| O3 Mini | 80 | $0.014/pt | Better value |
O3 Mini delivers the best value at $0.014 per score point.
Strengths & Weaknesses
GPT-4
- + Original breakthrough model
- - Two generations behind
- - Expensive
O3 Mini
- + Excellent at competitive programming
- + Strong algorithmic reasoning
- - Optimized for reasoning, not chat
Verdict
O3 Mini wins on both price and performance — $1.10/M input with a benchmark score of 80/100.
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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