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GPT-5 vs o4-mini
A detailed comparison of GPT-5 (OpenAI) and o4-mini (OpenAI) across pricing, performance, and features.
Pricing Comparison
| Metric | GPT-5 | o4-mini | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.25 | $1.10 | -12% |
| Output / 1M tokens | $10.00 | $4.40 | -56% |
| Context window | 128K | 200K | — |
| Max output | 16.384K | 100K | — |
Benchmark Comparison
| Benchmark | GPT-5 | o4-mini |
|---|---|---|
| MMLU-Pro | 88.5% | 85% |
| HumanEval | 95% | 93.5% |
| GPQA | 73.5% | 76% |
Capabilities
| Capability | GPT-5 | o4-mini |
|---|---|---|
| audio | ✓ | ✗ |
| code | ✓ | ✓ |
| reasoning | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
GPT-5 Strengths
- ✓Strong all-around performance
- ✓Good price for flagship tier
- ✓Multimodal including audio
GPT-5 Weaknesses
- ✗128K context vs 200K+ for newer models
- ✗Codex variants better for pure coding
o4-mini Strengths
- ✓Affordable reasoning model
- ✓200K context window
- ✓Good for math and science
o4-mini Weaknesses
- ✗Slower than non-reasoning models
- ✗Reasoning tokens add to effective cost
Quick Verdict
Best value: o4-mini is the more affordable option at $1.1/$4.4 per 1M tokens.
Higher benchmarks: GPT-5 scores higher on average across available benchmarks (85.7% avg).
Larger context: o4-mini supports 200K tokens.
Choose o4-mini if cost matters most. Choose GPT-5 if you need the best possible quality for complex tasks.