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Side-by-side comparison for AI agent model selection.
Side-by-side comparison of Gemini 3.1 Pro and Claude Sonnet 4.5. Gemini 3.1 Pro scores 57 on quality benchmarks at $17.50/1M tokens. Claude Sonnet 4.5 scores 48 at $18.00/1M tokens.
Gemini 3.1 Pro has higher benchmark scores and costs less per token. Claude Sonnet 4.5 offers competitive value. For budget-conscious users, go with Gemini 3.1 Pro. For maximum quality, choose Gemini 3.1 Pro.
| Gemini 3.1 Pro | Claude Sonnet 4.5 | |
|---|---|---|
| Provider | Anthropic | |
| Tier | Frontier | Premium |
| Quality Score | 57 | 48 |
| Input Price | $2.50/1M | $3.00/1M |
| Output Price | $15.00/1M | $15.00/1M |
| Speed | 113 tok/s | 70 tok/s |
| Context Window | 1.0M | 1.0M |
| Max Output | 66K | 64K |
| Reasoning | Yes | Yes |
| Vision | Yes | Yes |
| Task | Gemini 3.1 Pro | Claude Sonnet 4.5 | Savings |
|---|---|---|---|
| Coding | $33.75 | $35.10 | Gemini 3.1 Pro saves $1.35 |
| Writing | $9.00 | $9.36 | Gemini 3.1 Pro saves $0.36 |
| Analysis | $18.75 | $19.50 | Gemini 3.1 Pro saves $0.75 |
| Research | $15.00 | $15.60 | Gemini 3.1 Pro saves $0.60 |
| Image Analysis | $4.50 | $4.68 | Gemini 3.1 Pro saves $0.18 |
| Math & Reasoning | $11.25 | $11.70 | Gemini 3.1 Pro saves $0.45 |