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Claude Sonnet 4 vs Gemini 3.1 Pro Preview Custom Tools
List-price comparison · Claude Sonnet 4 details · Gemini 3.1 Pro Preview Custom Tools details
For a typical workload (100,000 requests / mo), Gemini 3.1 Pro Preview Custom Tools costs 25% less — $720.00/mo vs $960.00/mo.
| Claude Sonnet 4 | Gemini 3.1 Pro Preview Custom Tools | |
|---|---|---|
| Input / 1M tokens | $3.00 | $2.00 |
| Output / 1M tokens | $15.00 | $12.00 |
| Typical request (1,200 in + 400 out) | $0.0096 | $0.0072 |
| Context window | 1M tokens | 1,048,756 tokens |
| Max output | 64k tokens | 65,536 tokens |
| Tier | Flagship | Flagship |
| Provider | Anthropic |
Projected monthly cost
1,000 requests / month$9.60 vs $7.2010,000 requests / month$96.00 vs $72.00100,000 requests / month$960.00 vs $720.00
Rows open both models in the calculator — adjust volume and token counts there.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.