Updated March 26, 2026· Based on independent benchmark data
Gemini 3.1 Pro Preview leads in intelligence with a score of 57.2 vs 49.7. Gemini 3.1 Pro Preview is 2.5x cheaper at $2.00/1M tokens vs $5.00/1M. For speed, Gemini 3.1 Pro Preview wins at 113 tok/s vs 57 tok/s.
| Metric | Claude Opus 4.5 (Reasoning) | Gemini 3.1 Pro Preview |
|---|---|---|
| Intelligence Score | 49.7 | 57.2 |
| Coding Score | 47.8 | 55.5 |
| Math Score | 91.3 | N/A |
| Speed (tok/s) | 57 tok/s | 113 tok/s |
| Latency (TTFT) | 10.41s | 23.84s |
| Input Price / 1M tokens | $5.00 | $2.00 |
| Output Price / 1M tokens | $25 | $12 |
| Context Window | N/A |
Gemini 3.1 Pro Preview outperforms Claude Opus 4.5 (Reasoning) on the intelligence index with a score of 57.2 compared to 49.7. For coding tasks, Gemini 3.1 Pro Preview has the edge with a coding score of 55.5 vs 47.8.
Gemini 3.1 Pro Preview generates output significantly faster at 113 tok/s compared to Claude Opus 4.5 (Reasoning)'s 57 tok/s, making it 2.0x faster for streaming responses. Time to first token is 10.41s for Claude Opus 4.5 (Reasoning) vs 23.84s for Gemini 3.1 Pro Preview, 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 Claude Opus 4.5 (Reasoning) costs $5.00/1M input ($25/1M output). That makes Claude Opus 4.5 (Reasoning) 2.5x 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, Claude Opus 4.5 (Reasoning) would cost approximately $30.00/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), stronger coding performance (55.5), faster output (113 tok/s), lower cost.
Gemini 3.1 Pro Preview scores higher on coding benchmarks (55.5 vs 47.8), making it the better choice for programming tasks.
Gemini 3.1 Pro Preview is cheaper at $2.00/1M input tokens vs $5.00/1M for Claude Opus 4.5 (Reasoning).
Gemini 3.1 Pro Preview is faster, producing output at 113 tok/s compared to Claude Opus 4.5 (Reasoning)'s 57 tok/s.
No, Claude Opus 4.5 (Reasoning) 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 Claude Opus 4.5 (Reasoning) may be better for specific use cases like budget-conscious projects or speed-critical applications.