Key Takeaways
R1 0528 wins:
- No clear advantages in compared metrics
GPT-5 Mini wins:
- Cheaper input tokens
- Cheaper output tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Price Advantage
GPT-5 Mini
Benchmark Advantage
GPT-5 Mini
Context Window
GPT-5 Mini
Speed
GPT-5 Mini
Pricing Comparison
Price Comparison
| Metric | R1 0528 | GPT-5 Mini | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.45 | $0.25 | GPT-5 Mini |
| Output (per 1M tokens) | $2.15 | $2.00 | GPT-5 Mini |
| Cache Read (per 1M) | $0.23 | $0.03 | GPT-5 Mini |
Using a 3:1 input/output ratio, GPT-5 Mini is 21% cheaper overall.
R1 0528 Providers
No provider data available
GPT-5 Mini Providers
No provider data available
Benchmark Comparison
8
Benchmarks Compared
1
R1 0528 Wins
5
GPT-5 Mini Wins
Benchmark Scores
| Benchmark | R1 0528 | GPT-5 Mini | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 27.1 | 41.2 | |
Coding Index Code generation & understanding | 24.0 | 35.3 | |
Math Index Mathematical reasoning | 76.0 | 90.7 | |
MMLU Pro Academic knowledge | 84.9 | 83.7 | |
GPQA Graduate-level science | 81.3 | 82.8 | |
LiveCodeBench Competitive programming | 77.0 | 83.8 | |
Aider Real-world code editing | 71.4 | - | - |
AIME Competition math | 89.3 | - | - |
GPT-5 Mini significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
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R1 0528
Other models
Context & Performance
Context Window
R1 0528
163,840
tokens
GPT-5 Mini
400,000
tokens
GPT-5 Mini has a 59% larger context window.
Speed Performance
| Metric | R1 0528 | GPT-5 Mini | Winner |
|---|---|---|---|
| Tokens/second | 0.0 tok/s | 69.6 tok/s | |
| Time to First Token | 0.00s | 88.79s |
GPT-5 Mini responds Infinity% faster on average.
Capabilities
Feature Comparison
| Feature | R1 0528 | GPT-5 Mini |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | R1 0528 | GPT-5 Mini |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Deepseek | OpenAI |
| Released | May 2025 | Aug 2025 |
R1 0528 Modalities
Input
text
Output
text
GPT-5 Mini Modalities
Input
textimagefile
Output
text