Key Takeaways
GPT-5 Mini wins:
- Cheaper input tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Grok 3 Mini wins:
- Cheaper output tokens
Price Advantage
GPT-5 Mini
Benchmark Advantage
GPT-5 Mini
Context Window
GPT-5 Mini
Speed
GPT-5 Mini
Pricing Comparison
Price Comparison
| Metric | GPT-5 Mini | Grok 3 Mini | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.25 | $0.30 | GPT-5 Mini |
| Output (per 1M tokens) | $2.00 | $0.50 | Grok 3 Mini |
| Cache Read (per 1M) | $25000.00 | $75000.00 | GPT-5 Mini |
Using a 3:1 input/output ratio, Grok 3 Mini is 49% cheaper overall.
GPT-5 Mini Providers
OpenAI $0.25 (Cheapest)
Azure $0.25 (Cheapest)
Grok 3 Mini Providers
Azure $0.25 (Cheapest)
Vercel $0.30
xAI $0.60
Benchmark Comparison
6
Benchmarks Compared
0
GPT-5 Mini Wins
0
Grok 3 Mini Wins
Benchmark Scores
| Benchmark | GPT-5 Mini | Grok 3 Mini | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 41.0 | - | - |
Coding Index Code generation & understanding | 35.3 | - | - |
Math Index Mathematical reasoning | 90.7 | - | - |
MMLU Pro Academic knowledge | 83.7 | - | - |
GPQA Graduate-level science | 82.8 | - | - |
LiveCodeBench Competitive programming | 83.8 | - | - |
GPT-5 Mini significantly outperforms in coding benchmarks.
Cost vs Quality
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GPT-5 Mini
Other models
Context & Performance
Context Window
GPT-5 Mini
400,000
tokens
Max output: 128,000 tokens
Grok 3 Mini
131,072
tokens
GPT-5 Mini has a 67% larger context window.
Speed Performance
| Metric | GPT-5 Mini | Grok 3 Mini | Winner |
|---|---|---|---|
| Tokens/second | 126.7 tok/s | N/A | |
| Time to First Token | 60.75s | N/A |
Capabilities
Feature Comparison
| Feature | GPT-5 Mini | Grok 3 Mini |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | GPT-5 Mini | Grok 3 Mini |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | OpenAI | Xai |
| Released | Aug 2025 | Jun 2025 |
GPT-5 Mini Modalities
Input
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Output
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Grok 3 Mini Modalities
Input
text
Output
text