Key Takeaways
GPT-4o wins:
- No clear advantages in compared metrics
GPT-5 wins:
- Cheaper input tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
Price Advantage
GPT-5
Benchmark Advantage
GPT-5
Context Window
GPT-5
Speed
GPT-5
Pricing Comparison
Price Comparison
| Metric | GPT-4o | GPT-5 | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $2.50 | $1.25 | GPT-5 |
| Output (per 1M tokens) | $10.00 | $10.00 | Tie |
| Cache Read (per 1M) | $1250000.00 | $125000.00 | GPT-5 |
Using a 3:1 input/output ratio, GPT-5 is 21% cheaper overall.
GPT-4o Providers
OpenAI $2.50 (Cheapest)
Vercel $2.50 (Cheapest)
OpenRouter $2.50 (Cheapest)
Azure $2.50 (Cheapest)
GPT-5 Providers
OpenAI $1.25 (Cheapest)
OpenRouter $1.25 (Cheapest)
Azure $1.25 (Cheapest)
Benchmark Comparison
8
Benchmarks Compared
0
GPT-4o Wins
5
GPT-5 Wins
Benchmark Scores
| Benchmark | GPT-4o | GPT-5 | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 15.6 | 44.1 | |
Coding Index Code generation & understanding | - | 34.6 | - |
Math Index Mathematical reasoning | - | 94.3 | - |
MMLU Pro Academic knowledge | - | 87.1 | - |
GPQA Graduate-level science | 52.1 | 85.4 | |
LiveCodeBench Competitive programming | 31.7 | 84.6 | |
Aider Real-world code editing | 74.4 | 88.0 | |
AIME Competition math | 11.7 | 95.7 |
GPT-5 significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
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Other models
Context & Performance
Context Window
GPT-4o
128,000
tokens
Max output: 16,384 tokens
GPT-5
400,000
tokens
Max output: 128,000 tokens
GPT-5 has a 68% larger context window.
Speed Performance
| Metric | GPT-4o | GPT-5 | Winner |
|---|---|---|---|
| Tokens/second | 77.3 tok/s | 115.8 tok/s | |
| Time to First Token | 0.51s | 100.46s |
GPT-5 responds 50% faster on average.
Capabilities
Feature Comparison
| Feature | GPT-4o | GPT-5 |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | GPT-4o | GPT-5 |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | OpenAI | OpenAI |
| Released | May 2024 | Aug 2025 |
GPT-4o Modalities
Input
textimagefile
Output
text
GPT-5 Modalities
Input
textimagefile
Output
text