Updated March 26, 2026· Based on independent benchmark data
Gemini 3.1 Pro Preview leads in intelligence with a score of 57.2 vs 40.7. Gemini 3.1 Pro Preview is 10.0x cheaper at $2.00/1M tokens vs $20/1M. For speed, Gemini 3.1 Pro Preview wins at 113 tok/s vs 15 tok/s.
| Metric | o3-pro | Gemini 3.1 Pro Preview |
|---|---|---|
| Intelligence Score | 40.7 | 57.2 |
| Coding Score | N/A | 55.5 |
| Math Score | N/A | N/A |
| Speed (tok/s) | 15 tok/s | 113 tok/s |
| Latency (TTFT) | 109.32s | 23.84s |
| Input Price / 1M tokens | $20 | $2.00 |
| Output Price / 1M tokens | $80 | $12 |
| Context Window | N/A | 1.0M |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Text | Audio + File + Image + Text + Video |
Gemini 3.1 Pro Preview outperforms o3-pro on the intelligence index with a score of 57.2 compared to 40.7.
Gemini 3.1 Pro Preview generates output significantly faster at 113 tok/s compared to o3-pro's 15 tok/s, making it 7.5x faster for streaming responses. Time to first token is 23.84s for Gemini 3.1 Pro Preview vs 109.32s for o3-pro, which affects perceived responsiveness in interactive applications.
Gemini 3.1 Pro Preview is more affordable at $2.00/1M input tokens ($12/1M output), while o3-pro costs $20/1M input ($80/1M output). That makes o3-pro 10.0x 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, o3-pro would cost approximately $120.00/month vs $12.00/month for Gemini 3.1 Pro Preview in input costs alone.
Choose Gemini 3.1 Pro Preview when you need higher intelligence (57.2), faster output (113 tok/s), lower cost.
Gemini 3.1 Pro Preview is cheaper at $2.00/1M input tokens vs $20/1M for o3-pro.
Gemini 3.1 Pro Preview is faster, producing output at 113 tok/s compared to o3-pro's 15 tok/s.
No, o3-pro does not support image input. However, Gemini 3.1 Pro Preview does support images.
It depends on your priorities. Gemini 3.1 Pro Preview scores higher on intelligence (57.2), but o3-pro may be better for specific use cases like budget-conscious projects or speed-critical applications.
Data last synced: March 26, 2026
| Output Modalities |
| Text |
| Text |
| Free Tier | No | No |