Updated March 26, 2026· Based on independent benchmark data
Gemini 3.1 Pro Preview leads in intelligence with a score of 57.2 vs 11.8. Llama 3.1 Instruct 8B is 20.0x cheaper at $0.10/1M tokens vs $2.00/1M. For speed, Llama 3.1 Instruct 8B wins at 191 tok/s vs 113 tok/s.
| Metric | Llama 3.1 Instruct 8B | Gemini 3.1 Pro Preview |
|---|---|---|
| Intelligence Score | 11.8 | 57.2 |
| Coding Score | 4.9 | 55.5 |
| Math Score | 4.3 | N/A |
| Speed (tok/s) | 191 tok/s | 113 tok/s |
| Latency (TTFT) | 0.47s | 23.84s |
| Input Price / 1M tokens | $0.10 | $2.00 |
| Output Price / 1M tokens | $0.10 | $12 |
| Context Window | N/A |
Gemini 3.1 Pro Preview outperforms Llama 3.1 Instruct 8B on the intelligence index with a score of 57.2 compared to 11.8. For coding tasks, Gemini 3.1 Pro Preview has the edge with a coding score of 55.5 vs 4.9.
Llama 3.1 Instruct 8B generates output significantly faster at 191 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 0.47s for Llama 3.1 Instruct 8B vs 23.84s for Gemini 3.1 Pro Preview, which affects perceived responsiveness in interactive applications.
Llama 3.1 Instruct 8B is more affordable at $0.10/1M input tokens ($0.10/1M output), while Gemini 3.1 Pro Preview costs $2.00/1M input ($12/1M output). That makes Gemini 3.1 Pro Preview 20.0x 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, Llama 3.1 Instruct 8B would cost approximately $0.60/month vs $12.00/month for Gemini 3.1 Pro Preview in input costs alone.
Choose Llama 3.1 Instruct 8B when you need faster output (191 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 4.9), making it the better choice for programming tasks.
Llama 3.1 Instruct 8B is cheaper at $0.10/1M input tokens vs $2.00/1M for Gemini 3.1 Pro Preview.
Llama 3.1 Instruct 8B is faster, producing output at 191 tok/s compared to Gemini 3.1 Pro Preview's 113 tok/s.
No, Llama 3.1 Instruct 8B 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 Llama 3.1 Instruct 8B may be better for specific use cases like budget-conscious projects or speed-critical applications.