Updated March 26, 2026· Based on independent benchmark data
Gemini 3.1 Pro Preview leads in intelligence with a score of 57.2 vs 32.1. Grok 3 mini Reasoning (high) is 6.7x cheaper at $0.30/1M tokens vs $2.00/1M. For speed, Grok 3 mini Reasoning (high) wins at 198 tok/s vs 113 tok/s.
| Metric | Grok 3 mini Reasoning (high) | Gemini 3.1 Pro Preview |
|---|---|---|
| Intelligence Score | 32.1 | 57.2 |
| Coding Score | 25.2 | 55.5 |
| Math Score | 84.7 | N/A |
| Speed (tok/s) | 198 tok/s | 113 tok/s |
| Latency (TTFT) | 0.37s | 23.84s |
| Input Price / 1M tokens | $0.30 | $2.00 |
| Output Price / 1M tokens | $0.50 | $12 |
| Context Window | N/A |
Gemini 3.1 Pro Preview outperforms Grok 3 mini Reasoning (high) on the intelligence index with a score of 57.2 compared to 32.1. For coding tasks, Gemini 3.1 Pro Preview has the edge with a coding score of 55.5 vs 25.2.
Grok 3 mini Reasoning (high) generates output significantly faster at 198 tok/s compared to Gemini 3.1 Pro Preview's 113 tok/s, making it 1.7x faster for streaming responses. Time to first token is 0.37s for Grok 3 mini Reasoning (high) vs 23.84s for Gemini 3.1 Pro Preview, which affects perceived responsiveness in interactive applications.
Grok 3 mini Reasoning (high) is more affordable at $0.30/1M input tokens ($0.50/1M output), while Gemini 3.1 Pro Preview costs $2.00/1M input ($12/1M output). That makes Gemini 3.1 Pro Preview 6.7x more expensive per token, which can add up significantly at scale. For a typical workload of 100 requests per day at 2,000 tokens each, Grok 3 mini Reasoning (high) would cost approximately $1.80/month vs $12.00/month for Gemini 3.1 Pro Preview in input costs alone.
Choose Grok 3 mini Reasoning (high) when you need faster output (198 tok/s), lower cost. Choose Gemini 3.1 Pro Preview when you need higher intelligence (57.2), stronger coding performance (55.5).
Gemini 3.1 Pro Preview scores higher on coding benchmarks (55.5 vs 25.2), making it the better choice for programming tasks.
Grok 3 mini Reasoning (high) is cheaper at $0.30/1M input tokens vs $2.00/1M for Gemini 3.1 Pro Preview.
Grok 3 mini Reasoning (high) is faster, producing output at 198 tok/s compared to Gemini 3.1 Pro Preview's 113 tok/s.
No, Grok 3 mini Reasoning (high) does not support image input. However, Gemini 3.1 Pro Preview does support images.
Data last synced: March 26, 2026
| 1.0M |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Text | Audio + File + Image + Text + Video |
| Output Modalities | Text | Text |
| Free Tier | No | No |
It depends on your priorities. Gemini 3.1 Pro Preview scores higher on intelligence (57.2), but Grok 3 mini Reasoning (high) may be better for specific use cases like budget-conscious projects or speed-critical applications.