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GPT-5 vs GPT-4o
A detailed comparison of GPT-5 (OpenAI) and GPT-4o (OpenAI) across pricing, performance, and features.
Pricing Comparison
| Metric | GPT-5 | GPT-4o | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.25 | $2.50 | +100% |
| Output / 1M tokens | $10.00 | $10.00 | — |
| Context window | 128K | 128K | — |
| Max output | 16.384K | 16.384K | — |
Benchmark Comparison
| Benchmark | GPT-5 | GPT-4o |
|---|---|---|
| MMLU-Pro | 88.5% | 80.5% |
| HumanEval | 95% | 91% |
| GPQA | 73.5% | 64.2% |
Capabilities
| Capability | GPT-5 | GPT-4o |
|---|---|---|
| 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
GPT-4o Strengths
- ✓Well-established and reliable
- ✓Large ecosystem of tools and integrations
GPT-4o Weaknesses
- ✗Being superseded by GPT-5 series
- ✗Higher price than newer, better alternatives
Quick Verdict
Best value: GPT-5 is the more affordable option at $1.25/$10 per 1M tokens.
Higher benchmarks: GPT-5 scores higher on average across available benchmarks (85.7% avg).
Choose GPT-5 if cost matters most. Choose GPT-4o if you need the best possible quality for complex tasks.