Updated March 26, 2026· Based on independent benchmark data
Gemini 3.1 Pro Preview leads in intelligence with a score of 57.2 vs 49.8. GLM-5 (Reasoning) is 2.0x cheaper at $1.00/1M tokens vs $2.00/1M. For speed, Gemini 3.1 Pro Preview wins at 113 tok/s vs 66 tok/s.
| Metric | Gemini 3.1 Pro Preview | GLM-5 (Reasoning) |
|---|---|---|
| Intelligence Score | 57.2 | 49.8 |
| Coding Score | 55.5 | 44.2 |
| Math Score | N/A | N/A |
| Speed (tok/s) | 113 tok/s | 66 tok/s |
| Latency (TTFT) | 23.84s | 0.98s |
| Input Price / 1M tokens | $2.00 | $1.00 |
| Output Price / 1M tokens | $12 | $3.20 |
| Context Window | 1.0M |
Gemini 3.1 Pro Preview outperforms GLM-5 (Reasoning) on the intelligence index with a score of 57.2 compared to 49.8. For coding tasks, Gemini 3.1 Pro Preview has the edge with a coding score of 55.5 vs 44.2.
Gemini 3.1 Pro Preview generates output significantly faster at 113 tok/s compared to GLM-5 (Reasoning)'s 66 tok/s, making it 1.7x faster for streaming responses. Time to first token is 0.98s for GLM-5 (Reasoning) vs 23.84s for Gemini 3.1 Pro Preview, which affects perceived responsiveness in interactive applications.
GLM-5 (Reasoning) is more affordable at $1.00/1M input tokens ($3.20/1M output), while Gemini 3.1 Pro Preview costs $2.00/1M input ($12/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, Gemini 3.1 Pro Preview would cost approximately $12.00/month vs $6.00/month for GLM-5 (Reasoning) 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). Choose GLM-5 (Reasoning) when you need lower cost.
Gemini 3.1 Pro Preview scores higher on coding benchmarks (55.5 vs 44.2), making it the better choice for programming tasks.
GLM-5 (Reasoning) is cheaper at $1.00/1M input tokens vs $2.00/1M for Gemini 3.1 Pro Preview.
Gemini 3.1 Pro Preview is faster, producing output at 113 tok/s compared to GLM-5 (Reasoning)'s 66 tok/s.
Yes, Gemini 3.1 Pro Preview supports image input. GLM-5 (Reasoning) does not support image input.
Data last synced: March 26, 2026
| N/A |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Audio + File + Image + Text + Video | Text |
| 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 GLM-5 (Reasoning) may be better for specific use cases like budget-conscious projects or speed-critical applications.